diff --git a/app/javascript/dashboard/api/enterprise/account.js b/app/javascript/dashboard/api/enterprise/account.js
index 3f12dc007..de80a3c0d 100644
--- a/app/javascript/dashboard/api/enterprise/account.js
+++ b/app/javascript/dashboard/api/enterprise/account.js
@@ -6,6 +6,7 @@ class EnterpriseAccountAPI extends ApiClient {
     super('', { accountScoped: true, enterprise: true });
   }
 
+  // V1 endpoints
   checkout() {
     return axios.post(`${this.url}checkout`);
   }
@@ -23,6 +24,49 @@ class EnterpriseAccountAPI extends ApiClient {
       action_type: action,
     });
   }
+
+  // V2 Billing endpoints
+  get v2BillingUrl() {
+    const accountId = this.accountIdFromRoute;
+    return `/enterprise/api/v2/accounts/${accountId}/billing`;
+  }
+
+  getCreditGrants() {
+    return axios.get(`${this.v2BillingUrl}/credit_grants`);
+  }
+
+  getPricingPlans() {
+    return axios.get(`${this.v2BillingUrl}/pricing_plans`);
+  }
+
+  getTopupOptions() {
+    return axios.get(`${this.v2BillingUrl}/topup_options`);
+  }
+
+  topupCredits(credits) {
+    return axios.post(`${this.v2BillingUrl}/topup`, { credits });
+  }
+
+  subscribeToPlan(pricingPlanId, quantity) {
+    return axios.post(`${this.v2BillingUrl}/subscribe`, {
+      pricing_plan_id: pricingPlanId,
+      quantity,
+    });
+  }
+
+  cancelSubscription(reason = null, feedback = null) {
+    return axios.post(`${this.v2BillingUrl}/cancel_subscription`, {
+      reason,
+      feedback,
+    });
+  }
+
+  changePricingPlan(pricingPlanId, quantity) {
+    return axios.post(`${this.v2BillingUrl}/change_pricing_plan`, {
+      pricing_plan_id: pricingPlanId,
+      quantity,
+    });
+  }
 }
 
 export default new EnterpriseAccountAPI();
diff --git a/app/javascript/dashboard/i18n/locale/en/settings.json b/app/javascript/dashboard/i18n/locale/en/settings.json
index b53bfed7b..58be53b6a 100644
--- a/app/javascript/dashboard/i18n/locale/en/settings.json
+++ b/app/javascript/dashboard/i18n/locale/en/settings.json
@@ -382,6 +382,8 @@
   "BILLING_SETTINGS": {
     "TITLE": "Billing",
     "DESCRIPTION": "Manage your subscription here, upgrade your plan and get more for your team.",
+    "BILLING_PORTAL": "Billing Portal",
+    "VIEW_ALL_PLANS": "View all plans",
     "CURRENT_PLAN": {
       "TITLE": "Current Plan",
       "PLAN_NOTE": "You are currently subscribed to the **{plan}** plan with **{quantity}** licenses",
@@ -394,6 +396,25 @@
       "DESCRIPTION": "View your previous invoices, edit your billing details, or cancel your subscription.",
       "BUTTON_TXT": "Go to the billing portal"
     },
+    "SUBSCRIPTION": {
+      "TITLE": "Subscription",
+      "DESCRIPTION": "Manage your current plan, seats, and billing cycle.",
+      "CURRENT_PLAN": "Current plan",
+      "NUMBER_OF_SEATS": "Number of seats",
+      "RENEWS_ON": "Renews on",
+      "ENDS_ON": "Ends on",
+      "CANCELLED_ON": "Cancelled on",
+      "CHANGE_PLAN": "Change",
+      "CHANGE_SEATS": "Change",
+      "CANCEL_SUBSCRIPTION": "Cancel"
+    },
+    "CAPTAIN_AI": {
+      "TITLE": "Captain AI",
+      "DESCRIPTION": "Purchase and manage credits for Captain AI features.",
+      "AI_CREDITS": "AI credits",
+      "PURCHASE_CREDITS": "Purchase credits",
+      "VIEW_HISTORY": "View credit history"
+    },
     "CAPTAIN": {
       "TITLE": "Captain",
       "DESCRIPTION": "Manage usage and credits for Captain AI.",
@@ -402,6 +423,78 @@
       "RESPONSES": "Responses",
       "UPGRADE": "Captain is not available on the free plan, upgrade now to get access to assistants, copilot and more."
     },
+    "CHANGE_PLAN_MODAL": {
+      "TITLE": "Change plan",
+      "DESCRIPTION": "Select a plan that best fits your needs.",
+      "SUBSCRIBE_TITLE": "Choose a plan",
+      "SUBSCRIBE_DESCRIPTION": "Select a plan to subscribe and unlock all features.",
+      "CURRENT_PLAN": "Current plan",
+      "CREDITS_MONTH": "{credits} credits/month",
+      "PER_USER_MONTH": "/user/month",
+      "AI_CREDITS_MONTH": "AI credits/month",
+      "CANCEL": "Cancel",
+      "SELECT_PLAN": "Select plan",
+      "CHANGE_PLAN": "Change plan",
+      "SUBSCRIBE": "Subscribe"
+    },
+    "CANCEL_MODAL": {
+      "TITLE": "Cancel subscription",
+      "WARNING_TITLE": "You're about to cancel your {plan} plan",
+      "WARNING_DESCRIPTION": "Your subscription will remain active until {date}. After that, you'll lose access to:",
+      "FEATURE_AI_CREDITS": "AI credits for Captain features",
+      "FEATURE_TEAM_COLLABORATION": "Team collaboration tools",
+      "FEATURE_PRIORITY_SUPPORT": "Priority customer support",
+      "KEEP_SUBSCRIPTION": "Keep subscription",
+      "CANCEL_SUBSCRIPTION": "Cancel subscription"
+    },
+    "FEEDBACK_MODAL": {
+      "TITLE": "Help us improve",
+      "DESCRIPTION": "We're sorry to see you go. Please help us improve by sharing your reason for cancelling.",
+      "REASON_LABEL": "Why are you cancelling?",
+      "REASONS": {
+        "TOO_EXPENSIVE": "It's too expensive",
+        "NOT_USING": "I'm not using it enough",
+        "MISSING_FEATURES": "Missing features I need",
+        "BETTER_ALTERNATIVE": "Found a better alternative",
+        "TECHNICAL_ISSUES": "Technical issues",
+        "OTHER": "Other reason"
+      },
+      "FEEDBACK_LABEL": "Additional feedback (optional)",
+      "FEEDBACK_PLACEHOLDER": "Tell us more about your experience...",
+      "GO_BACK": "Go back",
+      "SUBMIT_CANCEL": "Submit and cancel"
+    },
+    "PURCHASE_MODAL": {
+      "TITLE": "Purchase AI credits",
+      "DESCRIPTION": "Choose a credit package that suits your needs.",
+      "MOST_POPULAR": "Most popular",
+      "CREDITS": "credits",
+      "NOTE": "Credits will be added to your account immediately and are non-refundable. Unused credits expire after 12 months.",
+      "CANCEL": "Cancel",
+      "PURCHASE": "Purchase"
+    },
+    "CREDIT_HISTORY": {
+      "TITLE": "Credit history",
+      "DESCRIPTION": "View your credit purchases and allocations.",
+      "NAME": "Name",
+      "CREDITS": "Credits",
+      "SOURCE": "Source",
+      "EFFECTIVE_AT": "Effective at",
+      "EXPIRES_AT": "Expires at",
+      "NO_RECORDS": "No credit history found.",
+      "CLOSE": "Close"
+    },
+    "HELP": {
+      "TITLE": "Need help?",
+      "DESCRIPTION": "Do you face any issues in billing? We are here to help.",
+      "CHAT": "Chat with us"
+    },
+    "ALERTS": {
+      "PLAN_CHANGED": "Your plan has been changed successfully.",
+      "SEATS_UPDATED": "Number of seats updated successfully.",
+      "SUBSCRIPTION_CANCELLED": "Your subscription has been scheduled for cancellation.",
+      "CREDITS_PURCHASED": "Credits purchased successfully."
+    },
     "CHAT_WITH_US": {
       "TITLE": "Need help?",
       "DESCRIPTION": "Do you face any issues in billing? We are here to help.",
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/Index.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/Index.vue
index 4ae140120..7243d9513 100644
--- a/app/javascript/dashboard/routes/dashboard/settings/billing/Index.vue
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/Index.vue
@@ -1,124 +1,252 @@
 <script setup>
 import { computed, onMounted, ref } from 'vue';
 import { useRouter } from 'vue-router';
+import { useI18n } from 'vue-i18n';
 import { useMapGetter, useStore } from 'dashboard/composables/store.js';
 import { useAccount } from 'dashboard/composables/useAccount';
 import { useCaptain } from 'dashboard/composables/useCaptain';
+import { useAlert } from 'dashboard/composables';
 import { format } from 'date-fns';
 import sessionStorage from 'shared/helpers/sessionStorage';
 
 import BillingMeter from './components/BillingMeter.vue';
 import BillingCard from './components/BillingCard.vue';
 import BillingHeader from './components/BillingHeader.vue';
-import DetailItem from './components/DetailItem.vue';
+import SubscriptionRow from './components/SubscriptionRow.vue';
+import SeatStepper from './components/SeatStepper.vue';
+import ChangePlanModal from './components/ChangePlanModal.vue';
+import CancelSubscriptionModal from './components/CancelSubscriptionModal.vue';
+import PurchaseCreditsModal from './components/PurchaseCreditsModal.vue';
+import CreditHistoryModal from './components/CreditHistoryModal.vue';
 import BaseSettingsHeader from '../components/BaseSettingsHeader.vue';
 import SettingsLayout from '../SettingsLayout.vue';
-import ButtonV4 from 'next/button/Button.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
 
+const { t } = useI18n();
 const router = useRouter();
+const store = useStore();
 const { currentAccount, isOnChatwootCloud } = useAccount();
 const {
   captainEnabled,
-  captainLimits,
-  documentLimits,
   responseLimits,
-  fetchLimits,
+  fetchLimits: fetchCaptainLimits,
 } = useCaptain();
 
 const uiFlags = useMapGetter('accounts/getUIFlags');
-const store = useStore();
+const pricingPlans = useMapGetter('accounts/getPricingPlans');
+const topupOptions = useMapGetter('accounts/getTopupOptions');
+const creditGrants = useMapGetter('accounts/getCreditGrants');
 
 const BILLING_REFRESH_ATTEMPTED = 'billing_refresh_attempted';
 
-// State for handling refresh attempts and loading
+// Modal refs
+const changePlanModalRef = ref(null);
+const cancelModalRef = ref(null);
+const purchaseCreditsModalRef = ref(null);
+const creditHistoryModalRef = ref(null);
+
+// State
 const isWaitingForBilling = ref(false);
+const isEditingSeats = ref(false);
+const editedSeats = ref(0);
 
 const customAttributes = computed(() => {
   return currentAccount.value.custom_attributes || {};
 });
 
-/**
- * Computed property for plan name
- * @returns {string|undefined}
- */
-const planName = computed(() => {
-  return customAttributes.value.plan_name;
-});
+const planName = computed(() => customAttributes.value.plan_name);
+const currentPlanId = computed(
+  () => customAttributes.value.stripe_pricing_plan_id
+);
+const subscriptionId = computed(
+  () => customAttributes.value.stripe_subscription_id
+);
+const subscribedQuantity = computed(
+  () => customAttributes.value.subscribed_quantity
+);
+const subscriptionStatus = computed(
+  () => customAttributes.value.subscription_status
+);
 
-/**
- * Computed property for subscribed quantity
- * @returns {number|undefined}
- */
-const subscribedQuantity = computed(() => {
-  return customAttributes.value.subscribed_quantity;
-});
+// Check if user has an active subscription (required for seat changes and cancellation)
+const hasActiveSubscription = computed(() => !!subscriptionId.value);
 
-const subscriptionRenewsOn = computed(() => {
-  if (!customAttributes.value.subscription_ends_on) return '';
-  const endDate = new Date(customAttributes.value.subscription_ends_on);
-  // return date as 12 Jan, 2034
+const subscriptionEndsAt = computed(() => {
+  if (!customAttributes.value.subscription_ends_at) return '';
+  const endDate = new Date(customAttributes.value.subscription_ends_at);
   return format(endDate, 'dd MMM, yyyy');
 });
 
-/**
- * Computed property indicating if user has a billing plan
- * @returns {boolean}
- */
-const hasABillingPlan = computed(() => {
-  return !!planName.value;
+const subscriptionCancelledAt = computed(() => {
+  if (!customAttributes.value.subscription_cancelled_at) return '';
+  const cancelledDate = new Date(customAttributes.value.subscription_cancelled_at);
+  return format(cancelledDate, 'dd MMM, yyyy');
 });
 
+const hasABillingPlan = computed(() => !!planName.value);
+
+const isCancelled = computed(() => {
+  return subscriptionStatus.value === 'cancel_at_period_end';
+});
+
+// Captain credits
+const creditsUsed = computed(() => {
+  if (!responseLimits.value) return 0;
+  return responseLimits.value.consumed || 0;
+});
+
+const creditsTotal = computed(() => {
+  if (!responseLimits.value) return 0;
+  return responseLimits.value.totalCount || 0;
+});
+
+// Actions
 const fetchAccountDetails = async () => {
   if (!hasABillingPlan.value) {
     await store.dispatch('accounts/subscription');
-    fetchLimits();
   }
+  // Always fetch captain limits to show AI credits
+  fetchCaptainLimits();
 };
 
 const handleBillingPageLogic = async () => {
-  // If self-hosted, redirect to dashboard
   if (!isOnChatwootCloud.value) {
     router.push({ name: 'home' });
     return;
   }
 
-  // Check if we've already attempted a refresh for billing setup
   const billingRefreshAttempted = sessionStorage.get(BILLING_REFRESH_ATTEMPTED);
-
-  // If cloud user, fetch account details first
   await fetchAccountDetails();
 
-  // If still no billing plan after fetch
   if (!hasABillingPlan.value) {
-    // If we haven't attempted refresh yet, do it once
     if (!billingRefreshAttempted) {
       isWaitingForBilling.value = true;
       sessionStorage.set(BILLING_REFRESH_ATTEMPTED, true);
-
       setTimeout(() => {
         window.location.reload();
       }, 5000);
     } else {
-      // We've already tried refreshing, so just show the no billing message
-      // Clear the flag for future visits
       sessionStorage.remove(BILLING_REFRESH_ATTEMPTED);
     }
   } else {
-    // Billing plan found, clear any existing refresh flag
     sessionStorage.remove(BILLING_REFRESH_ATTEMPTED);
   }
 };
 
-const onClickBillingPortal = () => {
+const openBillingPortal = () => {
   store.dispatch('accounts/checkout');
 };
 
-const onToggleChatWindow = () => {
+const openChatWidget = () => {
   if (window.$chatwoot) {
     window.$chatwoot.toggle();
   }
 };
 
+// Modal handlers
+const openChangePlanModal = async () => {
+  await store.dispatch('accounts/fetchPricingPlans');
+  changePlanModalRef.value?.open();
+};
+
+const handlePlanSelect = async plan => {
+  try {
+    // If no active subscription, use subscribe API (for Hacker plan users)
+    if (!hasActiveSubscription.value) {
+      await store.dispatch('accounts/subscribeToPlan', {
+        pricingPlanId: plan.id,
+        quantity: 1,
+      });
+      // subscribeToPlan redirects to Stripe, so no need to close modal
+      return;
+    }
+
+    // Otherwise use change plan API (for existing subscribers)
+    await store.dispatch('accounts/changePricingPlan', {
+      pricingPlanId: plan.id,
+      quantity: subscribedQuantity.value || 1,
+    });
+    changePlanModalRef.value?.close();
+    useAlert(t('BILLING_SETTINGS.ALERTS.PLAN_CHANGED'));
+    await store.dispatch('accounts/subscription');
+  } catch {
+    // Error already handled
+  }
+};
+
+// Seats editing
+const startEditingSeats = () => {
+  editedSeats.value = subscribedQuantity.value || 1;
+  isEditingSeats.value = true;
+};
+
+const cancelEditingSeats = () => {
+  isEditingSeats.value = false;
+};
+
+const saveSeats = async newSeats => {
+  if (newSeats === subscribedQuantity.value) {
+    isEditingSeats.value = false;
+    return;
+  }
+
+  try {
+    await store.dispatch('accounts/changePricingPlan', {
+      pricingPlanId: currentPlanId.value,
+      quantity: newSeats,
+    });
+    isEditingSeats.value = false;
+    useAlert(t('BILLING_SETTINGS.ALERTS.SEATS_UPDATED'));
+    await store.dispatch('accounts/subscription');
+  } catch {
+    // Error already handled
+  }
+};
+
+// Cancel subscription
+const openCancelModal = () => {
+  cancelModalRef.value?.open();
+};
+
+const handleCancelConfirm = async ({ reason, feedback }) => {
+  try {
+    await store.dispatch('accounts/cancelAccountSubscription', {
+      reason,
+      feedback,
+    });
+    cancelModalRef.value?.close();
+    useAlert(t('BILLING_SETTINGS.ALERTS.SUBSCRIPTION_CANCELLED'));
+    await store.dispatch('accounts/subscription');
+  } catch {
+    // Error already handled
+  }
+};
+
+// Purchase credits
+const openPurchaseCreditsModal = async () => {
+  await store.dispatch('accounts/fetchTopupOptions');
+  purchaseCreditsModalRef.value?.open();
+};
+
+const handlePurchaseCredits = async option => {
+  try {
+    await store.dispatch('accounts/purchaseCredits', {
+      credits: option.credits,
+    });
+    purchaseCreditsModalRef.value?.close();
+    useAlert(t('BILLING_SETTINGS.ALERTS.CREDITS_PURCHASED'));
+    fetchCaptainLimits();
+  } catch {
+    // Error already handled
+  }
+};
+
+// Credit history
+const openCreditHistoryModal = async () => {
+  await store.dispatch('accounts/fetchCreditGrants');
+  creditHistoryModalRef.value?.open();
+};
+
 onMounted(handleBillingPageLogic);
 </script>
 
@@ -137,92 +265,187 @@ onMounted(handleBillingPageLogic);
       <BaseSettingsHeader
         :title="$t('BILLING_SETTINGS.TITLE')"
         :description="$t('BILLING_SETTINGS.DESCRIPTION')"
-        :link-text="$t('BILLING_SETTINGS.VIEW_PRICING')"
         feature-name="billing"
-      />
+      >
+        <template #actions>
+          <Button
+            solid
+            blue
+            sm
+            :label="$t('BILLING_SETTINGS.BILLING_PORTAL')"
+            :is-loading="uiFlags.isCheckoutInProcess"
+            @click="openBillingPortal"
+          />
+        </template>
+      </BaseSettingsHeader>
     </template>
+
     <template #body>
-      <section class="grid gap-4">
-        <BillingCard
-          :title="$t('BILLING_SETTINGS.MANAGE_SUBSCRIPTION.TITLE')"
-          :description="$t('BILLING_SETTINGS.MANAGE_SUBSCRIPTION.DESCRIPTION')"
+      <section class="flex flex-col gap-6">
+        <a
+          href="https://www.chatwoot.com/pricing"
+          target="_blank"
+          rel="noopener noreferrer"
+          class="inline-flex items-center gap-1 text-sm font-medium text-n-blue-text hover:underline"
         >
-          <template #action>
-            <ButtonV4 sm solid blue @click="onClickBillingPortal">
-              {{ $t('BILLING_SETTINGS.MANAGE_SUBSCRIPTION.BUTTON_TXT') }}
-            </ButtonV4>
-          </template>
-          <div
-            v-if="planName || subscribedQuantity || subscriptionRenewsOn"
-            class="grid lg:grid-cols-4 sm:grid-cols-3 grid-cols-1 gap-2 divide-x divide-n-weak"
-          >
-            <DetailItem
-              :label="$t('BILLING_SETTINGS.CURRENT_PLAN.TITLE')"
+          {{ $t('BILLING_SETTINGS.VIEW_ALL_PLANS') }}
+          <span class="i-lucide-chevron-right size-4" />
+        </a>
+
+        <!-- Subscription Card -->
+        <BillingCard
+          :title="$t('BILLING_SETTINGS.SUBSCRIPTION.TITLE')"
+          :description="$t('BILLING_SETTINGS.SUBSCRIPTION.DESCRIPTION')"
+        >
+          <div class="px-5">
+            <SubscriptionRow
+              :label="$t('BILLING_SETTINGS.SUBSCRIPTION.CURRENT_PLAN')"
               :value="planName"
+              :action-text="$t('BILLING_SETTINGS.SUBSCRIPTION.CHANGE_PLAN')"
+              :action-disabled="isCancelled"
+              @action="openChangePlanModal"
             />
-            <DetailItem
-              v-if="subscribedQuantity"
-              :label="$t('BILLING_SETTINGS.CURRENT_PLAN.SEAT_COUNT')"
+
+            <SubscriptionRow
+              :label="$t('BILLING_SETTINGS.SUBSCRIPTION.NUMBER_OF_SEATS')"
               :value="subscribedQuantity"
+              :action-text="$t('BILLING_SETTINGS.SUBSCRIPTION.CHANGE_SEATS')"
+              :show-action="
+                !isEditingSeats && !isCancelled && hasActiveSubscription
+              "
+              @action="startEditingSeats"
+            >
+              <template v-if="isEditingSeats" #value>
+                <SeatStepper
+                  v-model="editedSeats"
+                  :min="1"
+                  :is-loading="uiFlags.isChangingPlan"
+                  @save="saveSeats"
+                  @cancel="cancelEditingSeats"
+                />
+              </template>
+            </SubscriptionRow>
+
+            <SubscriptionRow
+              v-if="isCancelled"
+              :label="$t('BILLING_SETTINGS.SUBSCRIPTION.CANCELLED_ON')"
+              :value="subscriptionCancelledAt"
             />
-            <DetailItem
-              v-if="subscriptionRenewsOn"
-              :label="$t('BILLING_SETTINGS.CURRENT_PLAN.RENEWS_ON')"
-              :value="subscriptionRenewsOn"
+
+            <SubscriptionRow
+              :label="
+                isCancelled
+                  ? $t('BILLING_SETTINGS.SUBSCRIPTION.ENDS_ON')
+                  : $t('BILLING_SETTINGS.SUBSCRIPTION.RENEWS_ON')
+              "
+              :value="subscriptionEndsAt"
+              :action-text="
+                isCancelled || !hasActiveSubscription
+                  ? ''
+                  : $t('BILLING_SETTINGS.SUBSCRIPTION.CANCEL_SUBSCRIPTION')
+              "
+              @action="openCancelModal"
             />
           </div>
         </BillingCard>
+
+        <!-- Captain AI Card -->
         <BillingCard
           v-if="captainEnabled"
-          :title="$t('BILLING_SETTINGS.CAPTAIN.TITLE')"
-          :description="$t('BILLING_SETTINGS.CAPTAIN.DESCRIPTION')"
+          :title="$t('BILLING_SETTINGS.CAPTAIN_AI.TITLE')"
+          :description="$t('BILLING_SETTINGS.CAPTAIN_AI.DESCRIPTION')"
         >
           <template #action>
-            <ButtonV4 sm faded slate disabled>
-              {{ $t('BILLING_SETTINGS.CAPTAIN.BUTTON_TXT') }}
-            </ButtonV4>
+            <Button
+              solid
+              slate
+              sm
+              :label="$t('BILLING_SETTINGS.CAPTAIN_AI.PURCHASE_CREDITS')"
+              @click="openPurchaseCreditsModal"
+            />
           </template>
-          <div v-if="captainLimits && responseLimits" class="px-5">
+          <div class="px-5">
             <BillingMeter
-              :title="$t('BILLING_SETTINGS.CAPTAIN.RESPONSES')"
-              v-bind="responseLimits"
+              :title="$t('BILLING_SETTINGS.CAPTAIN_AI.AI_CREDITS')"
+              :consumed="creditsUsed"
+              :total-count="creditsTotal"
             />
           </div>
-          <div v-if="captainLimits && documentLimits" class="px-5">
-            <BillingMeter
-              :title="$t('BILLING_SETTINGS.CAPTAIN.DOCUMENTS')"
-              v-bind="documentLimits"
-            />
+          <div class="px-5 pt-2">
+            <button
+              type="button"
+              class="text-sm font-medium text-n-slate-11 hover:text-n-slate-12 hover:underline"
+              @click="openCreditHistoryModal"
+            >
+              {{ $t('BILLING_SETTINGS.CAPTAIN_AI.VIEW_HISTORY') }}
+            </button>
           </div>
         </BillingCard>
+
+        <!-- Captain AI Upgrade Card (when not enabled) -->
         <BillingCard
           v-else
-          :title="$t('BILLING_SETTINGS.CAPTAIN.TITLE')"
+          :title="$t('BILLING_SETTINGS.CAPTAIN_AI.TITLE')"
           :description="$t('BILLING_SETTINGS.CAPTAIN.UPGRADE')"
         >
           <template #action>
-            <ButtonV4 sm solid slate @click="onClickBillingPortal">
-              {{ $t('CAPTAIN.PAYWALL.UPGRADE_NOW') }}
-            </ButtonV4>
+            <Button
+              solid
+              slate
+              sm
+              :label="$t('CAPTAIN.PAYWALL.UPGRADE_NOW')"
+              @click="openBillingPortal"
+            />
           </template>
         </BillingCard>
 
+        <!-- Help Section -->
         <BillingHeader
-          class="px-1 mt-5"
-          :title="$t('BILLING_SETTINGS.CHAT_WITH_US.TITLE')"
-          :description="$t('BILLING_SETTINGS.CHAT_WITH_US.DESCRIPTION')"
+          class="px-1 mt-2"
+          :title="$t('BILLING_SETTINGS.HELP.TITLE')"
+          :description="$t('BILLING_SETTINGS.HELP.DESCRIPTION')"
         >
-          <ButtonV4
-            sm
+          <Button
             solid
             slate
-            icon="i-lucide-life-buoy"
-            @click="onToggleChatWindow"
-          >
-            {{ $t('BILLING_SETTINGS.CHAT_WITH_US.BUTTON_TXT') }}
-          </ButtonV4>
+            sm
+            icon="i-lucide-message-circle"
+            :label="$t('BILLING_SETTINGS.HELP.CHAT')"
+            @click="openChatWidget"
+          />
         </BillingHeader>
       </section>
+
+      <!-- Modals -->
+      <ChangePlanModal
+        ref="changePlanModalRef"
+        :plans="pricingPlans"
+        :current-plan-id="currentPlanId"
+        :is-loading="uiFlags.isChangingPlan || uiFlags.isSubscribing"
+        :is-subscribe-mode="!hasActiveSubscription"
+        @select="handlePlanSelect"
+      />
+
+      <CancelSubscriptionModal
+        ref="cancelModalRef"
+        :plan-name="planName"
+        :renews-on="subscriptionEndsAt"
+        :is-loading="uiFlags.isCancellingSubscription"
+        @confirm="handleCancelConfirm"
+      />
+
+      <PurchaseCreditsModal
+        ref="purchaseCreditsModalRef"
+        :options="topupOptions"
+        :is-loading="uiFlags.isPurchasingCredits"
+        @purchase="handlePurchaseCredits"
+      />
+
+      <CreditHistoryModal
+        ref="creditHistoryModalRef"
+        :credit-grants="creditGrants"
+        :is-loading="uiFlags.isFetchingCreditGrants"
+      />
     </template>
   </SettingsLayout>
 </template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/CancelSubscriptionModal.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/CancelSubscriptionModal.vue
new file mode 100644
index 000000000..1aa770621
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/CancelSubscriptionModal.vue
@@ -0,0 +1,141 @@
+<script setup>
+import { ref } from 'vue';
+import { useI18n } from 'vue-i18n';
+import Dialog from 'dashboard/components-next/dialog/Dialog.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+import CancellationFeedbackForm from './CancellationFeedbackForm.vue';
+
+defineProps({
+  planName: {
+    type: String,
+    default: '',
+  },
+  renewsOn: {
+    type: String,
+    default: '',
+  },
+  isLoading: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+const emit = defineEmits(['confirm', 'close']);
+
+const { t } = useI18n();
+
+const dialogRef = ref(null);
+const step = ref('warning'); // 'warning' | 'feedback'
+
+const features = [
+  'BILLING_SETTINGS.CANCEL_MODAL.FEATURE_AI_CREDITS',
+  'BILLING_SETTINGS.CANCEL_MODAL.FEATURE_TEAM_COLLABORATION',
+  'BILLING_SETTINGS.CANCEL_MODAL.FEATURE_PRIORITY_SUPPORT',
+];
+
+const handleProceedToFeedback = () => {
+  step.value = 'feedback';
+};
+
+const handleBack = () => {
+  step.value = 'warning';
+};
+
+const handleFeedbackSubmit = ({ reason, feedback }) => {
+  emit('confirm', { reason, feedback });
+};
+
+const handleClose = () => {
+  step.value = 'warning';
+  emit('close');
+};
+
+const open = () => {
+  step.value = 'warning';
+  dialogRef.value?.open();
+};
+
+const close = () => {
+  dialogRef.value?.close();
+};
+
+defineExpose({ open, close });
+</script>
+
+<template>
+  <Dialog
+    ref="dialogRef"
+    :title="
+      step === 'warning'
+        ? t('BILLING_SETTINGS.CANCEL_MODAL.TITLE')
+        : t('BILLING_SETTINGS.FEEDBACK_MODAL.TITLE')
+    "
+    width="lg"
+    :show-confirm-button="false"
+    :show-cancel-button="false"
+    @close="handleClose"
+  >
+    <!-- Warning Step -->
+    <template v-if="step === 'warning'">
+      <div class="p-4 border rounded-lg bg-n-ruby-9/5 border-n-ruby-9/20">
+        <div class="flex gap-3">
+          <span
+            class="flex-shrink-0 i-lucide-alert-triangle size-5 text-n-ruby-9"
+          />
+          <div class="flex flex-col gap-2">
+            <p class="text-sm font-medium text-n-ruby-11">
+              {{
+                t('BILLING_SETTINGS.CANCEL_MODAL.WARNING_TITLE', {
+                  plan: planName,
+                })
+              }}
+            </p>
+            <p class="text-sm text-n-ruby-11/80">
+              {{
+                t('BILLING_SETTINGS.CANCEL_MODAL.WARNING_DESCRIPTION', {
+                  date: renewsOn,
+                })
+              }}
+            </p>
+            <ul class="mt-2 space-y-1">
+              <li
+                v-for="feature in features"
+                :key="feature"
+                class="flex items-center gap-2 text-sm text-n-ruby-11"
+              >
+                <span class="size-1.5 rounded-full bg-n-ruby-9" />
+                {{ t(feature) }}
+              </li>
+            </ul>
+          </div>
+        </div>
+      </div>
+
+      <div class="flex items-center gap-3 mt-6">
+        <Button
+          variant="faded"
+          color="slate"
+          :label="t('BILLING_SETTINGS.CANCEL_MODAL.KEEP_SUBSCRIPTION')"
+          class="flex-1"
+          @click="close"
+        />
+        <Button
+          color="ruby"
+          solid
+          :label="t('BILLING_SETTINGS.CANCEL_MODAL.CANCEL_SUBSCRIPTION')"
+          class="flex-1"
+          @click="handleProceedToFeedback"
+        />
+      </div>
+    </template>
+
+    <!-- Feedback Step -->
+    <template v-else>
+      <CancellationFeedbackForm
+        :is-loading="isLoading"
+        @submit="handleFeedbackSubmit"
+        @back="handleBack"
+      />
+    </template>
+  </Dialog>
+</template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/CancellationFeedbackForm.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/CancellationFeedbackForm.vue
new file mode 100644
index 000000000..5d1c8645c
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/CancellationFeedbackForm.vue
@@ -0,0 +1,117 @@
+<script setup>
+import { ref } from 'vue';
+import { useI18n } from 'vue-i18n';
+
+defineProps({
+  isLoading: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+const emit = defineEmits(['submit', 'back']);
+
+const { t } = useI18n();
+
+const selectedReason = ref('');
+const additionalFeedback = ref('');
+
+const cancellationReasons = [
+  {
+    key: 'too_expensive',
+    label: 'BILLING_SETTINGS.FEEDBACK_MODAL.REASONS.TOO_EXPENSIVE',
+  },
+  {
+    key: 'not_using',
+    label: 'BILLING_SETTINGS.FEEDBACK_MODAL.REASONS.NOT_USING',
+  },
+  {
+    key: 'missing_features',
+    label: 'BILLING_SETTINGS.FEEDBACK_MODAL.REASONS.MISSING_FEATURES',
+  },
+  {
+    key: 'better_alternative',
+    label: 'BILLING_SETTINGS.FEEDBACK_MODAL.REASONS.BETTER_ALTERNATIVE',
+  },
+  {
+    key: 'technical_issues',
+    label: 'BILLING_SETTINGS.FEEDBACK_MODAL.REASONS.TECHNICAL_ISSUES',
+  },
+  { key: 'other', label: 'BILLING_SETTINGS.FEEDBACK_MODAL.REASONS.OTHER' },
+];
+
+const handleSubmit = () => {
+  emit('submit', {
+    reason: selectedReason.value,
+    feedback: additionalFeedback.value,
+  });
+};
+
+const handleBack = () => {
+  emit('back');
+};
+</script>
+
+<template>
+  <div class="flex flex-col gap-4">
+    <p class="text-sm text-n-slate-11">
+      {{ t('BILLING_SETTINGS.FEEDBACK_MODAL.DESCRIPTION') }}
+    </p>
+
+    <div class="flex flex-col gap-2">
+      <label class="text-sm font-medium text-n-slate-12">
+        {{ t('BILLING_SETTINGS.FEEDBACK_MODAL.REASON_LABEL') }}
+      </label>
+      <div class="flex flex-col gap-2">
+        <label
+          v-for="reason in cancellationReasons"
+          :key="reason.key"
+          class="flex items-center gap-3 p-3 transition-colors border rounded-lg cursor-pointer border-n-weak hover:bg-n-alpha-1"
+          :class="{
+            'border-n-teal-9 bg-n-teal-9/5': selectedReason === reason.key,
+          }"
+        >
+          <input
+            v-model="selectedReason"
+            type="radio"
+            name="cancellation-reason"
+            :value="reason.key"
+            class="w-4 h-4 accent-n-teal-9"
+          />
+          <span class="text-sm text-n-slate-12">{{ t(reason.label) }}</span>
+        </label>
+      </div>
+    </div>
+
+    <div class="flex flex-col gap-2">
+      <label class="text-sm font-medium text-n-slate-11">
+        {{ t('BILLING_SETTINGS.FEEDBACK_MODAL.FEEDBACK_LABEL') }}
+      </label>
+      <textarea
+        v-model="additionalFeedback"
+        rows="3"
+        class="w-full p-3 text-sm transition-colors border rounded-lg resize-none bg-n-alpha-1 border-n-weak text-n-slate-12 placeholder:text-n-slate-10 focus:outline-none focus:border-n-strong"
+        :placeholder="t('BILLING_SETTINGS.FEEDBACK_MODAL.FEEDBACK_PLACEHOLDER')"
+      />
+    </div>
+
+    <div class="flex items-center gap-3 pt-2">
+      <button
+        type="button"
+        class="flex-1 px-4 py-2 text-sm font-medium transition-colors border rounded-lg border-n-weak text-n-slate-12 hover:bg-n-alpha-1"
+        :disabled="isLoading"
+        @click="handleBack"
+      >
+        {{ t('BILLING_SETTINGS.FEEDBACK_MODAL.GO_BACK') }}
+      </button>
+      <button
+        type="button"
+        class="flex-1 px-4 py-2 text-sm font-medium text-white transition-colors rounded-lg bg-n-slate-9 hover:bg-n-slate-10 disabled:opacity-50"
+        :disabled="!selectedReason || isLoading"
+        @click="handleSubmit"
+      >
+        {{ t('BILLING_SETTINGS.FEEDBACK_MODAL.SUBMIT_CANCEL') }}
+      </button>
+    </div>
+  </div>
+</template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/ChangePlanModal.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/ChangePlanModal.vue
new file mode 100644
index 000000000..a3120a5be
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/ChangePlanModal.vue
@@ -0,0 +1,147 @@
+<script setup>
+import { ref, computed } from 'vue';
+import { useI18n } from 'vue-i18n';
+import Dialog from 'dashboard/components-next/dialog/Dialog.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+import PlanCard from './PlanCard.vue';
+
+const props = defineProps({
+  plans: {
+    type: Array,
+    default: () => [],
+  },
+  currentPlanId: {
+    type: String,
+    default: '',
+  },
+  isLoading: {
+    type: Boolean,
+    default: false,
+  },
+  isSubscribeMode: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+const emit = defineEmits(['select', 'close']);
+
+const { t } = useI18n();
+
+const dialogRef = ref(null);
+const selectedPlanId = ref(props.currentPlanId);
+
+const selectedPlan = computed(() => {
+  return filteredPlans.value.find(p => p.id === selectedPlanId.value);
+});
+
+// Filter out Hacker plan when user already has a subscription (change plan mode)
+const filteredPlans = computed(() => {
+  if (props.isSubscribeMode) {
+    // In subscribe mode (no subscription), show all plans including Hacker
+    return props.plans;
+  }
+  // In change plan mode (has subscription), hide Hacker plan
+  return props.plans.filter(
+    plan => plan.display_name?.toLowerCase() !== 'hacker'
+  );
+});
+
+const isCurrentPlanSelected = computed(() => {
+  return selectedPlanId.value === props.currentPlanId;
+});
+
+const modalTitle = computed(() => {
+  if (props.isSubscribeMode) {
+    return t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.SUBSCRIBE_TITLE');
+  }
+  return t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.TITLE');
+});
+
+const modalDescription = computed(() => {
+  if (props.isSubscribeMode) {
+    return t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.SUBSCRIBE_DESCRIPTION');
+  }
+  return t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.DESCRIPTION');
+});
+
+const confirmButtonLabel = computed(() => {
+  if (isCurrentPlanSelected.value) {
+    return t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.CURRENT_PLAN');
+  }
+  if (props.isSubscribeMode) {
+    return t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.SUBSCRIBE');
+  }
+  return t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.CHANGE_PLAN');
+});
+
+const handlePlanSelect = plan => {
+  selectedPlanId.value = plan.id;
+};
+
+const handleConfirm = () => {
+  if (!isCurrentPlanSelected.value && selectedPlan.value) {
+    emit('select', selectedPlan.value);
+  }
+};
+
+const handleClose = () => {
+  emit('close');
+};
+
+const open = () => {
+  selectedPlanId.value = props.currentPlanId;
+  dialogRef.value?.open();
+};
+
+const close = () => {
+  dialogRef.value?.close();
+};
+
+defineExpose({ open, close });
+</script>
+
+<template>
+  <Dialog
+    ref="dialogRef"
+    :title="modalTitle"
+    :description="modalDescription"
+    width="2xl"
+    :show-confirm-button="false"
+    :show-cancel-button="false"
+    @close="handleClose"
+  >
+    <div class="grid grid-cols-3 gap-4">
+      <PlanCard
+        v-for="plan in filteredPlans"
+        :key="plan.id"
+        :plan="plan"
+        :is-selected="selectedPlanId === plan.id"
+        :is-current="plan.id === currentPlanId"
+        :is-disabled="isLoading || plan.id === currentPlanId"
+        @select="handlePlanSelect"
+      />
+    </div>
+    <template #footer>
+      <div class="flex items-center justify-between w-full gap-3">
+        <Button
+          variant="faded"
+          color="slate"
+          :label="t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.CANCEL')"
+          class="w-full"
+          :disabled="isLoading"
+          @click="close"
+        />
+        <Button
+          color="slate"
+          solid
+          :label="confirmButtonLabel"
+          class="w-full"
+          :disabled="isCurrentPlanSelected || isLoading"
+          :is-loading="isLoading"
+          @click="handleConfirm"
+        />
+      </div>
+    </template>
+  </Dialog>
+</template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/CreditHistoryModal.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/CreditHistoryModal.vue
new file mode 100644
index 000000000..3d6fe138b
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/CreditHistoryModal.vue
@@ -0,0 +1,146 @@
+<script setup>
+import { ref, computed } from 'vue';
+import { useI18n } from 'vue-i18n';
+import { format } from 'date-fns';
+import Dialog from 'dashboard/components-next/dialog/Dialog.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+
+const props = defineProps({
+  creditGrants: {
+    type: Array,
+    default: () => [],
+  },
+  isLoading: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+const emit = defineEmits(['close']);
+
+const { t } = useI18n();
+
+const dialogRef = ref(null);
+
+const formattedGrants = computed(() => {
+  return props.creditGrants.map(grant => ({
+    ...grant,
+    formattedEffectiveAt: grant.effective_at
+      ? format(new Date(grant.effective_at), 'dd MMM, yyyy')
+      : '-',
+    formattedExpiresAt: grant.expires_at
+      ? format(new Date(grant.expires_at), 'dd MMM, yyyy')
+      : '-',
+  }));
+});
+
+const handleClose = () => {
+  emit('close');
+};
+
+const open = () => {
+  dialogRef.value?.open();
+};
+
+const close = () => {
+  dialogRef.value?.close();
+};
+
+defineExpose({ open, close });
+</script>
+
+<template>
+  <Dialog
+    ref="dialogRef"
+    :title="t('BILLING_SETTINGS.CREDIT_HISTORY.TITLE')"
+    :description="t('BILLING_SETTINGS.CREDIT_HISTORY.DESCRIPTION')"
+    width="2xl"
+    :show-confirm-button="false"
+    :show-cancel-button="false"
+    overflow-y-auto
+    @close="handleClose"
+  >
+    <div v-if="isLoading" class="flex items-center justify-center py-8">
+      <span class="i-lucide-loader-2 size-6 animate-spin text-n-slate-11" />
+    </div>
+
+    <div v-else-if="formattedGrants.length === 0" class="py-8 text-center">
+      <span
+        class="i-lucide-credit-card size-12 text-n-slate-9 mx-auto block mb-3"
+      />
+      <p class="text-sm text-n-slate-11">
+        {{ t('BILLING_SETTINGS.CREDIT_HISTORY.NO_RECORDS') }}
+      </p>
+    </div>
+
+    <div v-else class="overflow-hidden border rounded-lg border-n-weak">
+      <table class="w-full">
+        <thead class="bg-n-alpha-1">
+          <tr>
+            <th
+              class="px-4 py-3 text-xs font-medium tracking-wider text-left uppercase text-n-slate-10"
+            >
+              {{ t('BILLING_SETTINGS.CREDIT_HISTORY.NAME') }}
+            </th>
+            <th
+              class="px-4 py-3 text-xs font-medium tracking-wider text-left uppercase text-n-slate-10"
+            >
+              {{ t('BILLING_SETTINGS.CREDIT_HISTORY.CREDITS') }}
+            </th>
+            <th
+              class="px-4 py-3 text-xs font-medium tracking-wider text-left uppercase text-n-slate-10"
+            >
+              {{ t('BILLING_SETTINGS.CREDIT_HISTORY.SOURCE') }}
+            </th>
+            <th
+              class="px-4 py-3 text-xs font-medium tracking-wider text-left uppercase text-n-slate-10"
+            >
+              {{ t('BILLING_SETTINGS.CREDIT_HISTORY.EFFECTIVE_AT') }}
+            </th>
+            <th
+              class="px-4 py-3 text-xs font-medium tracking-wider text-left uppercase text-n-slate-10"
+            >
+              {{ t('BILLING_SETTINGS.CREDIT_HISTORY.EXPIRES_AT') }}
+            </th>
+          </tr>
+        </thead>
+        <tbody class="divide-y divide-n-weak">
+          <tr v-for="grant in formattedGrants" :key="grant.id">
+            <td class="px-4 py-3 text-sm text-n-slate-12">
+              {{ grant.name || '-' }}
+            </td>
+            <td
+              class="px-4 py-3 text-sm font-medium tabular-nums text-n-slate-12"
+            >
+              {{ grant.credits?.toLocaleString() || 0 }}
+            </td>
+            <td class="px-4 py-3">
+              <span
+                class="px-2 py-1 text-xs font-medium rounded bg-n-alpha-2 text-n-slate-11"
+              >
+                {{ grant.source || grant.category || '-' }}
+              </span>
+            </td>
+            <td class="px-4 py-3 text-sm text-n-slate-11">
+              {{ grant.formattedEffectiveAt }}
+            </td>
+            <td class="px-4 py-3 text-sm text-n-slate-11">
+              {{ grant.formattedExpiresAt }}
+            </td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+
+    <template #footer>
+      <div class="flex justify-end w-full">
+        <Button
+          variant="faded"
+          color="slate"
+          :label="t('BILLING_SETTINGS.CREDIT_HISTORY.CLOSE')"
+          @click="close"
+        />
+      </div>
+    </template>
+  </Dialog>
+</template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/CreditPackageCard.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/CreditPackageCard.vue
new file mode 100644
index 000000000..f24abcb32
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/CreditPackageCard.vue
@@ -0,0 +1,78 @@
+<script setup>
+import { computed } from 'vue';
+import { useI18n } from 'vue-i18n';
+
+const props = defineProps({
+  credits: {
+    type: Number,
+    required: true,
+  },
+  amount: {
+    type: Number,
+    required: true,
+  },
+  isPopular: {
+    type: Boolean,
+    default: false,
+  },
+  isSelected: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+defineEmits(['select']);
+
+const { t } = useI18n();
+
+const formattedCredits = computed(() => {
+  return props.credits.toLocaleString();
+});
+
+const formattedAmount = computed(() => {
+  return new Intl.NumberFormat('en-US', {
+    style: 'currency',
+    currency: 'USD',
+    minimumFractionDigits: 0,
+    maximumFractionDigits: 0,
+  }).format(props.amount);
+});
+
+const cardClasses = computed(() => {
+  const baseClasses =
+    'relative flex flex-col gap-2 p-4 transition-all border rounded-xl cursor-pointer';
+
+  if (props.isSelected) {
+    return `${baseClasses} border-n-teal-9 bg-n-teal-9/5`;
+  }
+  return `${baseClasses} border-n-weak hover:border-n-strong`;
+});
+</script>
+
+<template>
+  <div :class="cardClasses" @click="$emit('select')">
+    <div
+      v-if="isPopular"
+      class="absolute px-2 py-1 text-xs font-medium text-white rounded -top-3 left-3 bg-n-teal-9"
+    >
+      {{ t('BILLING_SETTINGS.PURCHASE_MODAL.MOST_POPULAR') }}
+    </div>
+    <div
+      v-if="isSelected"
+      class="absolute flex items-center justify-center rounded-full -top-2 -right-2 size-6 bg-n-teal-9"
+    >
+      <span class="text-white i-lucide-check size-4" />
+    </div>
+    <div class="text-2xl font-semibold text-n-slate-12">
+      {{ formattedCredits }}
+    </div>
+    <div class="text-xs font-medium tracking-wider uppercase text-n-slate-10">
+      {{ t('BILLING_SETTINGS.PURCHASE_MODAL.CREDITS') }}
+    </div>
+    <div class="mt-2">
+      <span class="text-lg font-semibold text-n-slate-12">{{
+        formattedAmount
+      }}</span>
+    </div>
+  </div>
+</template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/PlanCard.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/PlanCard.vue
new file mode 100644
index 000000000..caca30699
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/PlanCard.vue
@@ -0,0 +1,99 @@
+<script setup>
+import { computed } from 'vue';
+import { useI18n } from 'vue-i18n';
+
+const props = defineProps({
+  plan: {
+    type: Object,
+    required: true,
+  },
+  isSelected: {
+    type: Boolean,
+    default: false,
+  },
+  isCurrent: {
+    type: Boolean,
+    default: false,
+  },
+  isDisabled: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+defineEmits(['select']);
+
+const { t } = useI18n();
+
+const displayPrice = computed(() => {
+  const licenseFee = props.plan.components?.find(c => c.type === 'license_fee');
+  const amount = licenseFee?.unit_amount || 0;
+  return new Intl.NumberFormat('en-US', {
+    style: 'currency',
+    currency: 'USD',
+    minimumFractionDigits: 0,
+    maximumFractionDigits: 0,
+  }).format(amount);
+});
+
+const monthlyCredits = computed(() => {
+  const serviceAction = props.plan.components?.find(
+    c => c.type === 'service_action'
+  );
+  return serviceAction?.credit_amount || 0;
+});
+
+const cardClasses = computed(() => {
+  const baseClasses = 'relative flex flex-col gap-2 p-4 transition-all border rounded-xl';
+
+  if (props.isDisabled) {
+    if (props.isSelected) {
+      return `${baseClasses} border-n-teal-9 bg-n-teal-9/5 opacity-70 cursor-not-allowed`;
+    }
+    return `${baseClasses} border-n-weak opacity-50 cursor-not-allowed`;
+  }
+
+  if (props.isSelected) {
+    return `${baseClasses} border-n-teal-9 bg-n-teal-9/5 cursor-pointer`;
+  }
+  return `${baseClasses} border-n-weak hover:border-n-strong cursor-pointer`;
+});
+
+const handleClick = () => {
+  if (!props.isDisabled) {
+    // Emit is handled in template
+  }
+};
+</script>
+
+<template>
+  <div :class="cardClasses" @click="!isDisabled && $emit('select', plan)">
+    <div
+      v-if="isCurrent"
+      class="absolute px-2 py-1 text-xs font-medium rounded -top-3 left-3 bg-n-solid-3 text-n-slate-11"
+    >
+      {{ t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.CURRENT_PLAN') }}
+    </div>
+    <div
+      v-if="isSelected"
+      class="absolute flex items-center justify-center rounded-full -top-2 -right-2 size-6 bg-n-teal-9"
+    >
+      <span class="text-white i-lucide-check size-4" />
+    </div>
+    <h3 class="text-lg font-medium text-n-slate-12">
+      {{ plan.display_name }}
+    </h3>
+    <div class="flex items-baseline gap-1">
+      <span class="text-2xl font-semibold text-n-slate-12">
+        {{ displayPrice }}
+      </span>
+      <span class="text-sm text-n-slate-11">
+        {{ t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.PER_USER_MONTH') }}
+      </span>
+    </div>
+    <div class="text-sm text-n-slate-11">
+      {{ monthlyCredits }}
+      {{ t('BILLING_SETTINGS.CHANGE_PLAN_MODAL.AI_CREDITS_MONTH') }}
+    </div>
+  </div>
+</template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/PurchaseCreditsModal.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/PurchaseCreditsModal.vue
new file mode 100644
index 000000000..1d65c6750
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/PurchaseCreditsModal.vue
@@ -0,0 +1,112 @@
+<script setup>
+import { ref, computed } from 'vue';
+import { useI18n } from 'vue-i18n';
+import Dialog from 'dashboard/components-next/dialog/Dialog.vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+import CreditPackageCard from './CreditPackageCard.vue';
+
+const props = defineProps({
+  options: {
+    type: Array,
+    default: () => [],
+  },
+  isLoading: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+const emit = defineEmits(['purchase', 'close']);
+
+const { t } = useI18n();
+
+const dialogRef = ref(null);
+const selectedCredits = ref(null);
+
+// The 3rd option (5000 credits) is marked as most popular based on Figma
+const popularCreditsAmount = 5000;
+
+const selectedOption = computed(() => {
+  return props.options.find(o => o.credits === selectedCredits.value);
+});
+
+const handlePackageSelect = credits => {
+  selectedCredits.value = credits;
+};
+
+const handlePurchase = () => {
+  if (selectedOption.value) {
+    emit('purchase', selectedOption.value);
+  }
+};
+
+const handleClose = () => {
+  emit('close');
+};
+
+const open = () => {
+  // Pre-select the most popular option
+  const popularOption = props.options.find(
+    o => o.credits === popularCreditsAmount
+  );
+  selectedCredits.value = popularOption?.credits || props.options[0]?.credits;
+  dialogRef.value?.open();
+};
+
+const close = () => {
+  dialogRef.value?.close();
+};
+
+defineExpose({ open, close });
+</script>
+
+<template>
+  <Dialog
+    ref="dialogRef"
+    :title="t('BILLING_SETTINGS.PURCHASE_MODAL.TITLE')"
+    :description="t('BILLING_SETTINGS.PURCHASE_MODAL.DESCRIPTION')"
+    width="xl"
+    :show-confirm-button="false"
+    :show-cancel-button="false"
+    @close="handleClose"
+  >
+    <div class="grid grid-cols-2 gap-4">
+      <CreditPackageCard
+        v-for="option in options"
+        :key="option.credits"
+        :credits="option.credits"
+        :amount="option.amount"
+        :is-popular="option.credits === popularCreditsAmount"
+        :is-selected="selectedCredits === option.credits"
+        @select="handlePackageSelect(option.credits)"
+      />
+    </div>
+
+    <div class="p-4 mt-4 border rounded-lg bg-n-alpha-1 border-n-weak">
+      <p class="text-sm text-n-slate-11">
+        {{ t('BILLING_SETTINGS.PURCHASE_MODAL.NOTE') }}
+      </p>
+    </div>
+
+    <template #footer>
+      <div class="flex items-center justify-between w-full gap-3">
+        <Button
+          variant="faded"
+          color="slate"
+          :label="t('BILLING_SETTINGS.PURCHASE_MODAL.CANCEL')"
+          class="w-full"
+          @click="close"
+        />
+        <Button
+          color="teal"
+          solid
+          :label="t('BILLING_SETTINGS.PURCHASE_MODAL.PURCHASE')"
+          class="w-full"
+          :disabled="!selectedCredits"
+          :is-loading="isLoading"
+          @click="handlePurchase"
+        />
+      </div>
+    </template>
+  </Dialog>
+</template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/SeatStepper.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/SeatStepper.vue
new file mode 100644
index 000000000..93f54a14c
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/SeatStepper.vue
@@ -0,0 +1,104 @@
+<script setup>
+import { ref, watch } from 'vue';
+import Button from 'dashboard/components-next/button/Button.vue';
+
+const props = defineProps({
+  modelValue: {
+    type: Number,
+    required: true,
+  },
+  min: {
+    type: Number,
+    default: 1,
+  },
+  max: {
+    type: Number,
+    default: 999,
+  },
+  isLoading: {
+    type: Boolean,
+    default: false,
+  },
+});
+
+const emit = defineEmits(['update:modelValue', 'save', 'cancel']);
+
+const localValue = ref(props.modelValue);
+
+watch(
+  () => props.modelValue,
+  newVal => {
+    localValue.value = newVal;
+  }
+);
+
+const decrement = () => {
+  if (localValue.value > props.min) {
+    localValue.value -= 1;
+    emit('update:modelValue', localValue.value);
+  }
+};
+
+const increment = () => {
+  if (localValue.value < props.max) {
+    localValue.value += 1;
+    emit('update:modelValue', localValue.value);
+  }
+};
+
+const handleSave = () => {
+  emit('save', localValue.value);
+};
+
+const handleCancel = () => {
+  localValue.value = props.modelValue;
+  emit('cancel');
+};
+</script>
+
+<template>
+  <div class="flex items-center gap-4">
+    <div
+      class="flex items-center overflow-hidden border rounded-lg border-n-weak"
+    >
+      <button
+        type="button"
+        class="flex items-center justify-center w-10 h-10 transition-colors text-n-slate-11 hover:bg-n-alpha-2 disabled:opacity-50"
+        :disabled="localValue <= min || isLoading"
+        @click="decrement"
+      >
+        <span class="i-lucide-minus size-4" />
+      </button>
+      <span
+        class="flex items-center justify-center w-12 h-10 text-base font-medium tabular-nums text-n-slate-12"
+      >
+        {{ localValue }}
+      </span>
+      <button
+        type="button"
+        class="flex items-center justify-center w-10 h-10 transition-colors text-n-slate-11 hover:bg-n-alpha-2 disabled:opacity-50"
+        :disabled="localValue >= max || isLoading"
+        @click="increment"
+      >
+        <span class="i-lucide-plus size-4" />
+      </button>
+    </div>
+    <div class="flex items-center gap-2">
+      <Button
+        variant="link"
+        color="slate"
+        label="Cancel"
+        :disabled="isLoading"
+        @click="handleCancel"
+      />
+      <Button
+        solid
+        slate
+        sm
+        label="Save"
+        :is-loading="isLoading"
+        @click="handleSave"
+      />
+    </div>
+  </div>
+</template>
diff --git a/app/javascript/dashboard/routes/dashboard/settings/billing/components/SubscriptionRow.vue b/app/javascript/dashboard/routes/dashboard/settings/billing/components/SubscriptionRow.vue
new file mode 100644
index 000000000..43b6b8a31
--- /dev/null
+++ b/app/javascript/dashboard/routes/dashboard/settings/billing/components/SubscriptionRow.vue
@@ -0,0 +1,56 @@
+<script setup>
+defineProps({
+  label: {
+    type: String,
+    required: true,
+  },
+  value: {
+    type: [String, Number],
+    default: '',
+  },
+  actionText: {
+    type: String,
+    default: '',
+  },
+  actionDisabled: {
+    type: Boolean,
+    default: false,
+  },
+  showAction: {
+    type: Boolean,
+    default: true,
+  },
+});
+
+defineEmits(['action']);
+</script>
+
+<template>
+  <div
+    class="flex items-center justify-between py-4 border-b border-n-weak last:border-b-0"
+  >
+    <div class="flex flex-col gap-1">
+      <span
+        class="text-xs font-medium tracking-wider uppercase text-n-slate-10"
+      >
+        {{ label }}
+      </span>
+      <slot name="value">
+        <span class="text-base font-medium text-n-slate-12">
+          {{ value }}
+        </span>
+      </slot>
+    </div>
+    <slot name="action">
+      <button
+        v-if="actionText && showAction"
+        type="button"
+        class="text-sm font-medium transition-colors text-n-slate-11 hover:text-n-slate-12 disabled:opacity-50 disabled:cursor-not-allowed"
+        :disabled="actionDisabled"
+        @click="$emit('action')"
+      >
+        {{ actionText }}
+      </button>
+    </slot>
+  </div>
+</template>
diff --git a/app/javascript/dashboard/store/modules/accounts.js b/app/javascript/dashboard/store/modules/accounts.js
index 1eef59cfe..2857783d1 100644
--- a/app/javascript/dashboard/store/modules/accounts.js
+++ b/app/javascript/dashboard/store/modules/accounts.js
@@ -18,7 +18,17 @@ const state = {
     isFetchingItem: false,
     isUpdating: false,
     isCheckoutInProcess: false,
+    isFetchingPricingPlans: false,
+    isFetchingTopupOptions: false,
+    isFetchingCreditGrants: false,
+    isChangingPlan: false,
+    isCancellingSubscription: false,
+    isPurchasingCredits: false,
+    isSubscribing: false,
   },
+  pricingPlans: [],
+  topupOptions: [],
+  creditGrants: [],
 };
 
 export const getters = {
@@ -28,6 +38,15 @@ export const getters = {
   getUIFlags($state) {
     return $state.uiFlags;
   },
+  getPricingPlans($state) {
+    return $state.pricingPlans;
+  },
+  getTopupOptions($state) {
+    return $state.topupOptions;
+  },
+  getCreditGrants($state) {
+    return $state.creditGrants;
+  },
   isRTL: ($state, _getters, rootState, rootGetters) => {
     const accountId = Number(rootState.route?.params?.accountId);
     const userLocale = rootGetters?.getUISettings?.locale;
@@ -152,6 +171,120 @@ export const actions = {
   getCacheKeys: async () => {
     return AccountAPI.getCacheKeys();
   },
+
+  // V2 Billing Actions
+  fetchPricingPlans: async ({ commit }) => {
+    commit(types.default.SET_ACCOUNT_UI_FLAG, { isFetchingPricingPlans: true });
+    try {
+      const response = await EnterpriseAccountAPI.getPricingPlans();
+      commit(types.default.SET_PRICING_PLANS, response.data.pricing_plans);
+    } catch (error) {
+      // silent error
+    } finally {
+      commit(types.default.SET_ACCOUNT_UI_FLAG, {
+        isFetchingPricingPlans: false,
+      });
+    }
+  },
+
+  fetchTopupOptions: async ({ commit }) => {
+    commit(types.default.SET_ACCOUNT_UI_FLAG, { isFetchingTopupOptions: true });
+    try {
+      const response = await EnterpriseAccountAPI.getTopupOptions();
+      commit(types.default.SET_TOPUP_OPTIONS, response.data.topup_options);
+    } catch (error) {
+      // silent error
+    } finally {
+      commit(types.default.SET_ACCOUNT_UI_FLAG, {
+        isFetchingTopupOptions: false,
+      });
+    }
+  },
+
+  fetchCreditGrants: async ({ commit }) => {
+    commit(types.default.SET_ACCOUNT_UI_FLAG, { isFetchingCreditGrants: true });
+    try {
+      const response = await EnterpriseAccountAPI.getCreditGrants();
+      commit(types.default.SET_CREDIT_GRANTS, response.data.credit_grants);
+    } catch (error) {
+      // silent error
+    } finally {
+      commit(types.default.SET_ACCOUNT_UI_FLAG, {
+        isFetchingCreditGrants: false,
+      });
+    }
+  },
+
+  changePricingPlan: async ({ commit }, { pricingPlanId, quantity }) => {
+    commit(types.default.SET_ACCOUNT_UI_FLAG, { isChangingPlan: true });
+    try {
+      const response = await EnterpriseAccountAPI.changePricingPlan(
+        pricingPlanId,
+        quantity
+      );
+      commit(types.default.EDIT_ACCOUNT, response.data);
+      return response.data;
+    } catch (error) {
+      throwErrorMessage(error);
+      throw error;
+    } finally {
+      commit(types.default.SET_ACCOUNT_UI_FLAG, { isChangingPlan: false });
+    }
+  },
+
+  cancelAccountSubscription: async ({ commit }, { reason, feedback }) => {
+    commit(types.default.SET_ACCOUNT_UI_FLAG, {
+      isCancellingSubscription: true,
+    });
+    try {
+      const response = await EnterpriseAccountAPI.cancelSubscription(
+        reason,
+        feedback
+      );
+      commit(types.default.EDIT_ACCOUNT, response.data);
+      return response.data;
+    } catch (error) {
+      throwErrorMessage(error);
+      throw error;
+    } finally {
+      commit(types.default.SET_ACCOUNT_UI_FLAG, {
+        isCancellingSubscription: false,
+      });
+    }
+  },
+
+  purchaseCredits: async ({ commit }, { credits }) => {
+    commit(types.default.SET_ACCOUNT_UI_FLAG, { isPurchasingCredits: true });
+    try {
+      const response = await EnterpriseAccountAPI.topupCredits(credits);
+      return response.data;
+    } catch (error) {
+      throwErrorMessage(error);
+      throw error;
+    } finally {
+      commit(types.default.SET_ACCOUNT_UI_FLAG, { isPurchasingCredits: false });
+    }
+  },
+
+  subscribeToPlan: async ({ commit }, { pricingPlanId, quantity }) => {
+    commit(types.default.SET_ACCOUNT_UI_FLAG, { isSubscribing: true });
+    try {
+      const response = await EnterpriseAccountAPI.subscribeToPlan(
+        pricingPlanId,
+        quantity
+      );
+      // Redirect to Stripe checkout
+      if (response.data.redirect_url) {
+        window.location = response.data.redirect_url;
+      }
+      return response.data;
+    } catch (error) {
+      throwErrorMessage(error);
+      throw error;
+    } finally {
+      commit(types.default.SET_ACCOUNT_UI_FLAG, { isSubscribing: false });
+    }
+  },
 };
 
 export const mutations = {
@@ -164,6 +297,15 @@ export const mutations = {
   [types.default.ADD_ACCOUNT]: MutationHelpers.setSingleRecord,
   [types.default.EDIT_ACCOUNT]: MutationHelpers.update,
   [types.default.SET_ACCOUNT_LIMITS]: MutationHelpers.updateAttributes,
+  [types.default.SET_PRICING_PLANS]($state, data) {
+    $state.pricingPlans = data;
+  },
+  [types.default.SET_TOPUP_OPTIONS]($state, data) {
+    $state.topupOptions = data;
+  },
+  [types.default.SET_CREDIT_GRANTS]($state, data) {
+    $state.creditGrants = data;
+  },
 };
 
 export default {
diff --git a/app/javascript/dashboard/store/mutation-types.js b/app/javascript/dashboard/store/mutation-types.js
index 68ff79e66..104155deb 100644
--- a/app/javascript/dashboard/store/mutation-types.js
+++ b/app/javascript/dashboard/store/mutation-types.js
@@ -76,13 +76,16 @@ export default {
   EDIT_INBOXES: 'EDIT_INBOXES',
   DELETE_INBOXES: 'DELETE_INBOXES',
 
-  // Agent
+  // Account
   SET_ACCOUNT_UI_FLAG: 'SET_ACCOUNT_UI_FLAG',
   SET_ACCOUNT_LIMITS: 'SET_ACCOUNT_LIMITS',
   SET_ACCOUNTS: 'SET_ACCOUNTS',
   ADD_ACCOUNT: 'ADD_ACCOUNT',
   EDIT_ACCOUNT: 'EDIT_ACCOUNT',
   DELETE_ACCOUNT: 'DELETE_AGENT',
+  SET_PRICING_PLANS: 'SET_PRICING_PLANS',
+  SET_TOPUP_OPTIONS: 'SET_TOPUP_OPTIONS',
+  SET_CREDIT_GRANTS: 'SET_CREDIT_GRANTS',
 
   // Agent
   SET_AGENT_FETCHING_STATUS: 'SET_AGENT_FETCHING_STATUS',