[PM-19147] Automatic Tax Improvements (#5545)

* Pm 19147 2 (#5544)

* Pm 19147 2 (#5544)

* Unit tests for tax strategies `GetUpdateOptions`

* Only allow automatic tax flag to be updated for complete subscription updates such as plan changes, not when upgrading additional storage, seats, etc

* unit tests for factory

* Fix build

* Automatic tax for tax estimation

* Fix stub

* Fix stub

* "customer.tax_ids" isn't expanded in some flows.

* Fix SubscriberServiceTests.cs

* BusinessUseAutomaticTaxStrategy > SetUpdateOptions tests

* Fix ProviderBillingServiceTests.cs

test/Core.Test/Billing/Services/Implementations/AutomaticTax/BusinessUseAutomaticTaxStrategyTests.cs

@@ -0,0 +1,492 @@
+using Bit.Core.Billing.Constants;
+using Bit.Core.Billing.Services.Implementations.AutomaticTax;
+using Bit.Core.Services;
+using Bit.Test.Common.AutoFixture;
+using Bit.Test.Common.AutoFixture.Attributes;
+using NSubstitute;
+using Stripe;
+using Xunit;
+
+namespace Bit.Core.Test.Billing.Services.Implementations.AutomaticTax;
+
+[SutProviderCustomize]
+public class BusinessUseAutomaticTaxStrategyTests
+{
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_ReturnsNull_WhenFeatureFlagAllowingToUpdateSubscriptionsIsDisabled(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription();
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(false);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.Null(actual);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_ReturnsNull_WhenSubscriptionDoesNotNeedUpdating(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "US",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.Null(actual);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_SetsAutomaticTaxToFalse_WhenTaxLocationIsUnrecognizedOrInvalid(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.UnrecognizedLocation
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.NotNull(actual);
+        Assert.False(actual.AutomaticTax.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_SetsAutomaticTaxToTrue_ForAmericanCustomers(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = false
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "US",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.NotNull(actual);
+        Assert.True(actual.AutomaticTax.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_SetsAutomaticTaxToTrue_ForGlobalCustomersWithTaxIds(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = false
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "ES",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                },
+                TaxIds = new StripeList<TaxId>
+                {
+                    Data = new List<TaxId>
+                    {
+                        new()
+                        {
+                            Country = "ES",
+                            Type = "eu_vat",
+                            Value = "ESZ8880999Z"
+                        }
+                    }
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.NotNull(actual);
+        Assert.True(actual.AutomaticTax.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_ThrowsArgumentNullException_WhenTaxIdsIsNull(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "ES",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                },
+                TaxIds = null
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        Assert.Throws<ArgumentNullException>(() => sutProvider.Sut.GetUpdateOptions(subscription));
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_SetsAutomaticTaxToTrue_ForGlobalCustomersWithoutTaxIds(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "ES",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                },
+                TaxIds = new StripeList<TaxId>
+                {
+                    Data = new List<TaxId>()
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.NotNull(actual);
+        Assert.False(actual.AutomaticTax.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void SetUpdateOptions_SetsNothing_WhenFeatureFlagAllowingToUpdateSubscriptionsIsDisabled(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var options = new SubscriptionUpdateOptions();
+
+        var subscription = new Subscription
+        {
+            Customer = new Customer
+            {
+                Address = new()
+                {
+                    Country = "US"
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(false);
+
+        sutProvider.Sut.SetUpdateOptions(options, subscription);
+
+        Assert.Null(options.AutomaticTax);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void SetUpdateOptions_SetsNothing_WhenSubscriptionDoesNotNeedUpdating(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var options = new SubscriptionUpdateOptions();
+
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "US",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        sutProvider.Sut.SetUpdateOptions(options, subscription);
+
+        Assert.Null(options.AutomaticTax);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void SetUpdateOptions_SetsAutomaticTaxToFalse_WhenTaxLocationIsUnrecognizedOrInvalid(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var options = new SubscriptionUpdateOptions();
+
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.UnrecognizedLocation
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        sutProvider.Sut.SetUpdateOptions(options, subscription);
+
+        Assert.False(options.AutomaticTax.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void SetUpdateOptions_SetsAutomaticTaxToTrue_ForAmericanCustomers(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var options = new SubscriptionUpdateOptions();
+
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = false
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "US",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        sutProvider.Sut.SetUpdateOptions(options, subscription);
+
+        Assert.True(options.AutomaticTax!.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void SetUpdateOptions_SetsAutomaticTaxToTrue_ForGlobalCustomersWithTaxIds(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var options = new SubscriptionUpdateOptions();
+
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = false
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "ES",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                },
+                TaxIds = new StripeList<TaxId>
+                {
+                    Data = new List<TaxId>
+                    {
+                        new()
+                        {
+                            Country = "ES",
+                            Type = "eu_vat",
+                            Value = "ESZ8880999Z"
+                        }
+                    }
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        sutProvider.Sut.SetUpdateOptions(options, subscription);
+
+        Assert.True(options.AutomaticTax!.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void SetUpdateOptions_ThrowsArgumentNullException_WhenTaxIdsIsNull(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var options = new SubscriptionUpdateOptions();
+
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "ES",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                },
+                TaxIds = null
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        Assert.Throws<ArgumentNullException>(() => sutProvider.Sut.SetUpdateOptions(options, subscription));
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void SetUpdateOptions_SetsAutomaticTaxToTrue_ForGlobalCustomersWithoutTaxIds(
+        SutProvider<BusinessUseAutomaticTaxStrategy> sutProvider)
+    {
+        var options = new SubscriptionUpdateOptions();
+
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "ES",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                },
+                TaxIds = new StripeList<TaxId>
+                {
+                    Data = new List<TaxId>()
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        sutProvider.Sut.SetUpdateOptions(options, subscription);
+
+        Assert.False(options.AutomaticTax!.Enabled);
+    }
+}

test/Core.Test/Billing/Services/Implementations/AutomaticTax/PersonalUseAutomaticTaxStrategyTests.cs

@@ -0,0 +1,217 @@
+using Bit.Core.Billing.Constants;
+using Bit.Core.Billing.Services.Implementations.AutomaticTax;
+using Bit.Core.Services;
+using Bit.Test.Common.AutoFixture;
+using Bit.Test.Common.AutoFixture.Attributes;
+using NSubstitute;
+using Stripe;
+using Xunit;
+
+namespace Bit.Core.Test.Billing.Services.Implementations.AutomaticTax;
+
+[SutProviderCustomize]
+public class PersonalUseAutomaticTaxStrategyTests
+{
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_ReturnsNull_WhenFeatureFlagAllowingToUpdateSubscriptionsIsDisabled(
+        SutProvider<PersonalUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription();
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(false);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.Null(actual);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_ReturnsNull_WhenSubscriptionDoesNotNeedUpdating(
+        SutProvider<PersonalUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = "US",
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.Null(actual);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public void GetUpdateOptions_SetsAutomaticTaxToFalse_WhenTaxLocationIsUnrecognizedOrInvalid(
+        SutProvider<PersonalUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = true
+            },
+            Customer = new Customer
+            {
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.UnrecognizedLocation
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.NotNull(actual);
+        Assert.False(actual.AutomaticTax.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData("CA")]
+    [BitAutoData("ES")]
+    [BitAutoData("US")]
+    public void GetUpdateOptions_SetsAutomaticTaxToTrue_ForAllCountries(
+        string country, SutProvider<PersonalUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = false
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = country
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.NotNull(actual);
+        Assert.True(actual.AutomaticTax.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData("CA")]
+    [BitAutoData("ES")]
+    [BitAutoData("US")]
+    public void GetUpdateOptions_SetsAutomaticTaxToTrue_ForGlobalCustomersWithTaxIds(
+        string country, SutProvider<PersonalUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = false
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = country,
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                },
+                TaxIds = new StripeList<TaxId>
+                {
+                    Data = new List<TaxId>
+                    {
+                        new()
+                        {
+                            Country = "ES",
+                            Type = "eu_vat",
+                            Value = "ESZ8880999Z"
+                        }
+                    }
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.NotNull(actual);
+        Assert.True(actual.AutomaticTax.Enabled);
+    }
+
+    [Theory]
+    [BitAutoData("CA")]
+    [BitAutoData("ES")]
+    [BitAutoData("US")]
+    public void GetUpdateOptions_SetsAutomaticTaxToTrue_ForGlobalCustomersWithoutTaxIds(
+        string country, SutProvider<PersonalUseAutomaticTaxStrategy> sutProvider)
+    {
+        var subscription = new Subscription
+        {
+            AutomaticTax = new SubscriptionAutomaticTax
+            {
+                Enabled = false
+            },
+            Customer = new Customer
+            {
+                Address = new Address
+                {
+                    Country = country
+                },
+                Tax = new CustomerTax
+                {
+                    AutomaticTax = StripeConstants.AutomaticTaxStatus.Supported
+                },
+                TaxIds = new StripeList<TaxId>
+                {
+                    Data = new List<TaxId>()
+                }
+            }
+        };
+
+        sutProvider.GetDependency<IFeatureService>()
+            .IsEnabled(Arg.Is<string>(p => p == FeatureFlagKeys.PM19422_AllowAutomaticTaxUpdates))
+            .Returns(true);
+
+        var actual = sutProvider.Sut.GetUpdateOptions(subscription);
+
+        Assert.NotNull(actual);
+        Assert.True(actual.AutomaticTax.Enabled);
+    }
+}

test/Core.Test/Billing/Services/Implementations/AutomaticTaxFactoryTests.cs

@@ -0,0 +1,105 @@
+using Bit.Core.AdminConsole.Entities;
+using Bit.Core.Billing.Enums;
+using Bit.Core.Billing.Models.StaticStore.Plans;
+using Bit.Core.Billing.Pricing;
+using Bit.Core.Billing.Services.Contracts;
+using Bit.Core.Billing.Services.Implementations.AutomaticTax;
+using Bit.Core.Entities;
+using Bit.Test.Common.AutoFixture;
+using Bit.Test.Common.AutoFixture.Attributes;
+using NSubstitute;
+using Xunit;
+
+namespace Bit.Core.Test.Billing.Services.Implementations;
+
+[SutProviderCustomize]
+public class AutomaticTaxFactoryTests
+{
+    [BitAutoData]
+    [Theory]
+    public async Task CreateAsync_ReturnsPersonalUseStrategy_WhenSubscriberIsUser(SutProvider<AutomaticTaxFactory> sut)
+    {
+        var parameters = new AutomaticTaxFactoryParameters(new User(), []);
+
+        var actual = await sut.Sut.CreateAsync(parameters);
+
+        Assert.IsType<PersonalUseAutomaticTaxStrategy>(actual);
+    }
+
+    [BitAutoData]
+    [Theory]
+    public async Task CreateAsync_ReturnsPersonalUseStrategy_WhenSubscriberIsOrganizationWithFamiliesAnnuallyPrice(
+        SutProvider<AutomaticTaxFactory> sut)
+    {
+        var familiesPlan = new FamiliesPlan();
+        var parameters = new AutomaticTaxFactoryParameters(new Organization(), [familiesPlan.PasswordManager.StripePlanId]);
+
+        sut.GetDependency<IPricingClient>()
+            .GetPlanOrThrow(Arg.Is<PlanType>(p => p == PlanType.FamiliesAnnually))
+            .Returns(new FamiliesPlan());
+
+        sut.GetDependency<IPricingClient>()
+            .GetPlanOrThrow(Arg.Is<PlanType>(p => p == PlanType.FamiliesAnnually2019))
+            .Returns(new Families2019Plan());
+
+        var actual = await sut.Sut.CreateAsync(parameters);
+
+        Assert.IsType<PersonalUseAutomaticTaxStrategy>(actual);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public async Task CreateAsync_ReturnsBusinessUseStrategy_WhenSubscriberIsOrganizationWithBusinessUsePrice(
+        EnterpriseAnnually plan,
+        SutProvider<AutomaticTaxFactory> sut)
+    {
+        var parameters = new AutomaticTaxFactoryParameters(new Organization(), [plan.PasswordManager.StripePlanId]);
+
+        sut.GetDependency<IPricingClient>()
+            .GetPlanOrThrow(Arg.Is<PlanType>(p => p == PlanType.FamiliesAnnually))
+            .Returns(new FamiliesPlan());
+
+        sut.GetDependency<IPricingClient>()
+            .GetPlanOrThrow(Arg.Is<PlanType>(p => p == PlanType.FamiliesAnnually2019))
+            .Returns(new Families2019Plan());
+
+        var actual = await sut.Sut.CreateAsync(parameters);
+
+        Assert.IsType<BusinessUseAutomaticTaxStrategy>(actual);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public async Task CreateAsync_ReturnsPersonalUseStrategy_WhenPlanIsMeantForPersonalUse(SutProvider<AutomaticTaxFactory> sut)
+    {
+        var parameters = new AutomaticTaxFactoryParameters(PlanType.FamiliesAnnually);
+        sut.GetDependency<IPricingClient>()
+            .GetPlanOrThrow(Arg.Is<PlanType>(p => p == parameters.PlanType.Value))
+            .Returns(new FamiliesPlan());
+
+        var actual = await sut.Sut.CreateAsync(parameters);
+
+        Assert.IsType<PersonalUseAutomaticTaxStrategy>(actual);
+    }
+
+    [Theory]
+    [BitAutoData]
+    public async Task CreateAsync_ReturnsBusinessUseStrategy_WhenPlanIsMeantForBusinessUse(SutProvider<AutomaticTaxFactory> sut)
+    {
+        var parameters = new AutomaticTaxFactoryParameters(PlanType.EnterpriseAnnually);
+        sut.GetDependency<IPricingClient>()
+            .GetPlanOrThrow(Arg.Is<PlanType>(p => p == parameters.PlanType.Value))
+            .Returns(new EnterprisePlan(true));
+
+        var actual = await sut.Sut.CreateAsync(parameters);
+
+        Assert.IsType<BusinessUseAutomaticTaxStrategy>(actual);
+    }
+
+    public record EnterpriseAnnually : EnterprisePlan
+    {
+        public EnterpriseAnnually() : base(true)
+        {
+        }
+    }
+}

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;
@@ -1167,7 +1170,9 @@ public class SubscriberServiceTests
     {
         var stripeAdapter = sutProvider.GetDependency<IStripeAdapter>();
 
-        stripeAdapter.CustomerGetAsync(provider.GatewayCustomerId)
+        stripeAdapter.CustomerGetAsync(
+                provider.GatewayCustomerId,
+                Arg.Is<CustomerGetOptions>(p => p.Expand.Contains("tax") || p.Expand.Contains("tax_ids")))
             .Returns(new Customer
             {
                 Id = provider.GatewayCustomerId,
@@ -1213,7 +1218,10 @@ public class SubscriberServiceTests
     {
         var stripeAdapter = sutProvider.GetDependency<IStripeAdapter>();
 
-        stripeAdapter.CustomerGetAsync(provider.GatewayCustomerId)
+        stripeAdapter.CustomerGetAsync(
+                provider.GatewayCustomerId,
+                Arg.Is<CustomerGetOptions>(p => p.Expand.Contains("tax") || p.Expand.Contains("tax_ids"))
+                )
             .Returns(new Customer
             {
                 Id = provider.GatewayCustomerId,
@@ -1321,7 +1329,9 @@ public class SubscriberServiceTests
     {
         const string braintreeCustomerId = "braintree_customer_id";
 
-        sutProvider.GetDependency<IStripeAdapter>().CustomerGetAsync(provider.GatewayCustomerId)
+        sutProvider.GetDependency<IStripeAdapter>().CustomerGetAsync(
+                provider.GatewayCustomerId,
+                Arg.Is<CustomerGetOptions>(p => p.Expand.Contains("tax") || p.Expand.Contains("tax_ids")))
             .Returns(new Customer
             {
                 Id = provider.GatewayCustomerId,
@@ -1373,7 +1383,9 @@ public class SubscriberServiceTests
     {
         const string braintreeCustomerId = "braintree_customer_id";
 
-        sutProvider.GetDependency<IStripeAdapter>().CustomerGetAsync(provider.GatewayCustomerId)
+        sutProvider.GetDependency<IStripeAdapter>().CustomerGetAsync(
+                provider.GatewayCustomerId,
+                Arg.Is<CustomerGetOptions>(p => p.Expand.Contains("tax") || p.Expand.Contains("tax_ids")))
             .Returns(new Customer
             {
                 Id = provider.GatewayCustomerId,
@@ -1482,7 +1494,9 @@ public class SubscriberServiceTests
     {
         const string braintreeCustomerId = "braintree_customer_id";
 
-        sutProvider.GetDependency<IStripeAdapter>().CustomerGetAsync(provider.GatewayCustomerId)
+        sutProvider.GetDependency<IStripeAdapter>().CustomerGetAsync(
+                provider.GatewayCustomerId,
+                Arg.Is<CustomerGetOptions>(p => p.Expand.Contains("tax") || p.Expand.Contains("tax_ids")))
             .Returns(new Customer
             {
                 Id = provider.GatewayCustomerId
@@ -1561,6 +1575,37 @@ public class SubscriberServiceTests
             "Example Town",
             "NY");
 
+        sutProvider.GetDependency<IStripeAdapter>()
+            .CustomerUpdateAsync(
+                Arg.Is<string>(p => p == provider.GatewayCustomerId),
+                Arg.Is<CustomerUpdateOptions>(options =>
+                    options.Address.Country == "US" &&
+                    options.Address.PostalCode == "12345" &&
+                    options.Address.Line1 == "123 Example St." &&
+                    options.Address.Line2 == null &&
+                    options.Address.City == "Example Town" &&
+                    options.Address.State == "NY"))
+            .Returns(new Customer
+            {
+                Id = provider.GatewayCustomerId,
+                Address = new Address
+                {
+                    Country = "US",
+                    PostalCode = "12345",
+                    Line1 = "123 Example St.",
+                    Line2 = null,
+                    City = "Example Town",
+                    State = "NY"
+                },
+                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>(

test/Core.Test/Billing/Stubs/FakeAutomaticTaxStrategy.cs

@@ -0,0 +1,35 @@
+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 };
+    }
+
+    public void SetInvoiceCreatePreviewOptions(InvoiceCreatePreviewOptions options)
+    {
+        options.AutomaticTax = new InvoiceAutomaticTaxOptions { Enabled = isAutomaticTaxEnabled };
+
+    }
+}