diff --git a/apps/web/src/app/billing/individual/upgrade/premium-org-upgrade-payment/premium-org-upgrade-payment.component.spec.ts b/apps/web/src/app/billing/individual/upgrade/premium-org-upgrade-payment/premium-org-upgrade-payment.component.spec.ts
index 38c60173f77..337bbf0c1b0 100644
--- a/apps/web/src/app/billing/individual/upgrade/premium-org-upgrade-payment/premium-org-upgrade-payment.component.spec.ts
+++ b/apps/web/src/app/billing/individual/upgrade/premium-org-upgrade-payment/premium-org-upgrade-payment.component.spec.ts
@@ -186,7 +186,7 @@ describe("PremiumOrgUpgradePaymentComponent", () => {
       tax: 5.0,
       total: 53.0,
       credit: 10.0,
-      proratedAmountOfMonths: 1,
+      newPlanProratedMonths: 1,
     });
 
     mockSubscriptionPricingService.getBusinessSubscriptionPricingTiers$.mockReturnValue(
diff --git a/apps/web/src/app/billing/individual/upgrade/premium-org-upgrade-payment/services/premium-org-upgrade.service.ts b/apps/web/src/app/billing/individual/upgrade/premium-org-upgrade-payment/services/premium-org-upgrade.service.ts
index 3d75ae58479..9e7d7488b72 100644
--- a/apps/web/src/app/billing/individual/upgrade/premium-org-upgrade-payment/services/premium-org-upgrade.service.ts
+++ b/apps/web/src/app/billing/individual/upgrade/premium-org-upgrade-payment/services/premium-org-upgrade.service.ts
@@ -35,7 +35,8 @@ export interface InvoicePreview {
   tax: number;
   total: number;
   credit: number;
-  proratedAmountOfMonths: number;
+  newPlanProratedMonths: number;
+  newPlanProratedAmount?: number;
 }
 
 @Injectable()
@@ -60,7 +61,8 @@ export class PremiumOrgUpgradeService {
       tax: invoicePreviewResponse.tax,
       total: invoicePreviewResponse.total,
       credit: invoicePreviewResponse.credit,
-      proratedAmountOfMonths: invoicePreviewResponse.proratedAmountOfMonths,
+      newPlanProratedMonths: invoicePreviewResponse.newPlanProratedMonths,
+      newPlanProratedAmount: invoicePreviewResponse.newPlanProratedAmount,
     };
   }