diff --git a/test/Core.Test/Billing/Services/SubscriberServiceTests.cs b/test/Core.Test/Billing/Services/SubscriberServiceTests.cs
index 94dc85aa01..92917240c6 100644
--- a/test/Core.Test/Billing/Services/SubscriberServiceTests.cs
+++ b/test/Core.Test/Billing/Services/SubscriberServiceTests.cs
@@ -3,10 +3,13 @@ using Bit.Core.AdminConsole.Entities.Provider;
 using Bit.Core.Billing.Caches;
 using Bit.Core.Billing.Constants;
 using Bit.Core.Billing.Models;
+using Bit.Core.Billing.Services;
+using Bit.Core.Billing.Services.Contracts;
 using Bit.Core.Billing.Services.Implementations;
 using Bit.Core.Enums;
 using Bit.Core.Services;
 using Bit.Core.Settings;
+using Bit.Core.Test.Billing.Stubs;
 using Bit.Test.Common.AutoFixture;
 using Bit.Test.Common.AutoFixture.Attributes;
 using Braintree;
@@ -1586,6 +1589,12 @@ public class SubscriberServiceTests
                 TaxIds = new StripeList<TaxId> { Data = [new TaxId { Id = "tax_id_1", Type = "us_ein" }] }
             });
 
+        var subscription = new Subscription { Items = new StripeList<SubscriptionItem>() };
+        sutProvider.GetDependency<IStripeAdapter>().SubscriptionGetAsync(Arg.Any<string>())
+            .Returns(subscription);
+        sutProvider.GetDependency<IAutomaticTaxFactory>().CreateAsync(Arg.Any<AutomaticTaxFactoryParameters>())
+            .Returns(new FakeAutomaticTaxStrategy(true));
+
         await sutProvider.Sut.UpdateTaxInformation(provider, taxInformation);
 
         await stripeAdapter.Received(1).CustomerUpdateAsync(provider.GatewayCustomerId, Arg.Is<CustomerUpdateOptions>(
diff --git a/test/Core.Test/Billing/Stubs/FakeAutomaticTaxStrategy.cs b/test/Core.Test/Billing/Stubs/FakeAutomaticTaxStrategy.cs
new file mode 100644
index 0000000000..01a316df7d
--- /dev/null
+++ b/test/Core.Test/Billing/Stubs/FakeAutomaticTaxStrategy.cs
@@ -0,0 +1,29 @@
+using Bit.Core.Billing.Services;
+using Stripe;
+
+namespace Bit.Core.Test.Billing.Stubs;
+
+/// <param name="IsAutomaticTaxEnabled">
+/// Whether the subscription options will have automatic tax enabled or not.
+/// </param>
+public class FakeAutomaticTaxStrategy(
+    bool IsAutomaticTaxEnabled) : IAutomaticTaxStrategy
+{
+    public SubscriptionUpdateOptions? GetUpdateOptions(Subscription subscription)
+    {
+        return new SubscriptionUpdateOptions
+        {
+            AutomaticTax = new SubscriptionAutomaticTaxOptions { Enabled = IsAutomaticTaxEnabled }
+        };
+    }
+
+    public void SetCreateOptions(SubscriptionCreateOptions options, Customer customer)
+    {
+        options.AutomaticTax = new SubscriptionAutomaticTaxOptions { Enabled = IsAutomaticTaxEnabled };
+    }
+
+    public void SetUpdateOptions(SubscriptionUpdateOptions options, Subscription subscription)
+    {
+        options.AutomaticTax = new SubscriptionAutomaticTaxOptions { Enabled = IsAutomaticTaxEnabled };
+    }
+}