diff --git a/src/Core/Billing/Services/Implementations/SubscriberService.cs b/src/Core/Billing/Services/Implementations/SubscriberService.cs
index 8c23b5591..034ce3c36 100644
--- a/src/Core/Billing/Services/Implementations/SubscriberService.cs
+++ b/src/Core/Billing/Services/Implementations/SubscriberService.cs
@@ -646,7 +646,7 @@ public class SubscriberService(
             {
                 switch (e.StripeError.Code)
                 {
-                    case "tax_id_invalid":
+                    case StripeConstants.ErrorCodes.TaxIdInvalid:
                         logger.LogWarning("Invalid tax ID '{TaxID}' for country '{Country}'.",
                             taxInformation.TaxId,
                             taxInformation.Country);
diff --git a/src/Core/Services/Implementations/StripePaymentService.cs b/src/Core/Services/Implementations/StripePaymentService.cs
index 14e4419b8..a7a0c7ea8 100644
--- a/src/Core/Services/Implementations/StripePaymentService.cs
+++ b/src/Core/Services/Implementations/StripePaymentService.cs
@@ -1736,7 +1736,7 @@ public class StripePaymentService : IPaymentService
                     {
                         switch (e.StripeError.Code)
                         {
-                            case "tax_id_invalid":
+                            case StripeConstants.ErrorCodes.TaxIdInvalid:
                                 _logger.LogWarning("Invalid tax ID '{TaxID}' for country '{Country}'.",
                                     taxInfo.TaxIdNumber,
                                     taxInfo.BillingAddressCountry);
@@ -1969,7 +1969,7 @@ public class StripePaymentService : IPaymentService
         {
             switch (e.StripeError.Code)
             {
-                case "tax_id_invalid":
+                case StripeConstants.ErrorCodes.TaxIdInvalid:
                     _logger.LogWarning("Invalid tax ID '{TaxID}' for country '{Country}'.",
                         parameters.TaxInformation.TaxId,
                         parameters.TaxInformation.Country);