diff --git a/spec/builders/v2/reports/concerns/rollup_conditions_spec.rb b/spec/builders/v2/reports/concerns/rollup_conditions_spec.rb
new file mode 100644
index 000000000..916c04d0e
--- /dev/null
+++ b/spec/builders/v2/reports/concerns/rollup_conditions_spec.rb
@@ -0,0 +1,274 @@
+require 'rails_helper'
+
+describe V2::Reports::Concerns::RollupConditions do
+  let(:dummy_class) do
+    Class.new do
+      include V2::Reports::Concerns::RollupConditions
+      attr_accessor :account, :params, :_group_by
+
+      def group_by
+        @_group_by || 'day'
+      end
+
+      # Make private methods public for testing
+      public :metric_to_rollup_metric, :dimension_type_to_rollup
+    end
+  end
+
+  let(:account) { create(:account, reporting_timezone: 'America/New_York') }
+  let(:builder) { dummy_class.new }
+
+  before do
+    builder.account = account
+    account.enable_features!('reporting_events_rollup')
+  end
+
+  describe '#use_rollup?' do
+    let(:valid_params) do
+      {
+        metric: 'avg_resolution_time',
+        type: 'account',
+        group_by: 'day',
+        timezone_offset: -5
+      }
+    end
+
+    context 'when all conditions pass' do
+      it 'returns true' do
+        builder.params = valid_params
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+    end
+
+    context 'Condition 0: reporting_timezone is blank' do
+      it 'returns false' do
+        account.update!(reporting_timezone: nil)
+        builder.params = valid_params
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be false
+      end
+    end
+
+    context 'Condition 1: feature flag is disabled' do
+      it 'returns false' do
+        account.disable_features!('reporting_events_rollup')
+        builder.params = valid_params
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be false
+      end
+    end
+
+    context 'Condition 2: metric is not covered' do
+      it 'returns false for conversations_count' do
+        builder.params = valid_params.merge(metric: 'conversations_count')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be false
+      end
+
+      it 'returns false for incoming_messages_count' do
+        builder.params = valid_params.merge(metric: 'incoming_messages_count')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be false
+      end
+
+      it 'returns false for outgoing_messages_count' do
+        builder.params = valid_params.merge(metric: 'outgoing_messages_count')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be false
+      end
+    end
+
+    context 'Condition 2: metric is covered' do
+      it 'returns true for avg_first_response_time' do
+        builder.params = valid_params.merge(metric: 'avg_first_response_time')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for avg_resolution_time' do
+        builder.params = valid_params
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for reply_time' do
+        builder.params = valid_params.merge(metric: 'reply_time')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for resolutions_count' do
+        builder.params = valid_params.merge(metric: 'resolutions_count')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for bot_resolutions_count' do
+        builder.params = valid_params.merge(metric: 'bot_resolutions_count')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for bot_handoffs_count' do
+        builder.params = valid_params.merge(metric: 'bot_handoffs_count')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+    end
+
+    context 'Condition 3: group_by is hourly' do
+      it 'returns false when group_by is hour' do
+        builder.params = valid_params
+        builder._group_by = 'hour'
+        expect(builder.use_rollup?).to be false
+      end
+
+      it 'returns true for day granularity' do
+        builder.params = valid_params
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for week granularity' do
+        builder.params = valid_params
+        builder._group_by = 'week'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for month granularity' do
+        builder.params = valid_params
+        builder._group_by = 'month'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for year granularity' do
+        builder.params = valid_params
+        builder._group_by = 'year'
+        expect(builder.use_rollup?).to be true
+      end
+    end
+
+    context 'Condition 4: dimension is not supported' do
+      it 'returns false for label dimension' do
+        builder.params = valid_params.merge(type: 'label')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be false
+      end
+
+      it 'returns true for account dimension' do
+        builder.params = valid_params.merge(type: 'account')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for agent dimension' do
+        builder.params = valid_params.merge(type: 'agent')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for inbox dimension' do
+        builder.params = valid_params.merge(type: 'inbox')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true for team dimension' do
+        builder.params = valid_params.merge(type: 'team')
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+    end
+
+    context 'Condition 5: timezone_offset does not match' do
+      it 'returns false when timezone_offset is UTC instead of EST' do
+        builder.params = valid_params.merge(timezone_offset: 0)
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be false
+      end
+
+      it 'returns false when timezone_offset is UTC+5:30 (different from EST)' do
+        builder.params = valid_params.merge(timezone_offset: 5.5)
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be false
+      end
+
+      it 'returns true when timezone_offset matches account timezone' do
+        builder.params = valid_params.merge(timezone_offset: -5)
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+
+      it 'returns true when timezone_offset is blank (defaults to account timezone)' do
+        builder.params = valid_params.merge(timezone_offset: nil)
+        builder._group_by = 'day'
+        expect(builder.use_rollup?).to be true
+      end
+    end
+  end
+
+  describe '#metric_to_rollup_metric' do
+    it 'maps avg_resolution_time to resolution_time' do
+      builder.params = { metric: 'avg_resolution_time' }
+      expect(builder.metric_to_rollup_metric('avg_resolution_time')).to eq(:resolution_time)
+    end
+
+    it 'maps avg_first_response_time to first_response' do
+      builder.params = { metric: 'avg_first_response_time' }
+      expect(builder.metric_to_rollup_metric('avg_first_response_time')).to eq(:first_response)
+    end
+
+    it 'maps reply_time to reply_time' do
+      builder.params = { metric: 'reply_time' }
+      expect(builder.metric_to_rollup_metric('reply_time')).to eq(:reply_time)
+    end
+
+    it 'maps resolutions_count to resolutions_count' do
+      builder.params = { metric: 'resolutions_count' }
+      expect(builder.metric_to_rollup_metric('resolutions_count')).to eq(:resolutions_count)
+    end
+
+    it 'maps bot_resolutions_count to bot_resolutions_count' do
+      builder.params = { metric: 'bot_resolutions_count' }
+      expect(builder.metric_to_rollup_metric('bot_resolutions_count')).to eq(:bot_resolutions_count)
+    end
+
+    it 'maps bot_handoffs_count to bot_handoffs_count' do
+      builder.params = { metric: 'bot_handoffs_count' }
+      expect(builder.metric_to_rollup_metric('bot_handoffs_count')).to eq(:bot_handoffs_count)
+    end
+  end
+
+  describe '#dimension_type_to_rollup' do
+    it 'maps account type to account' do
+      builder.params = { type: 'account' }
+      expect(builder.dimension_type_to_rollup).to eq(:account)
+    end
+
+    it 'maps agent type to agent' do
+      builder.params = { type: 'agent' }
+      expect(builder.dimension_type_to_rollup).to eq(:agent)
+    end
+
+    it 'maps inbox type to inbox' do
+      builder.params = { type: 'inbox' }
+      expect(builder.dimension_type_to_rollup).to eq(:inbox)
+    end
+
+    it 'maps team type to team' do
+      builder.params = { type: 'team' }
+      expect(builder.dimension_type_to_rollup).to eq(:team)
+    end
+
+    it 'returns nil for unsupported type' do
+      builder.params = { type: 'label' }
+      expect(builder.dimension_type_to_rollup).to be_nil
+    end
+
+    it 'returns nil when type is blank' do
+      builder.params = { type: nil }
+      expect(builder.dimension_type_to_rollup).to be_nil
+    end
+  end
+end