REFACTOR

src/Api/Billing/Controllers/StripeController.cs

@@ -1,4 +1,5 @@
-using Bit.Core.Services;
+using Bit.Core.Billing.Services;
+using Bit.Core.Services;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.AspNetCore.Mvc;
@@ -46,4 +47,15 @@ public class StripeController(
 
         return TypedResults.Ok(setupIntent.ClientSecret);
     }
+
+    [HttpGet]
+    [Route("~/tax/is-country-supported")]
+    public IResult IsCountrySupported(
+        [FromQuery] string country,
+        [FromServices] ITaxService taxService)
+    {
+        var isSupported = taxService.IsSupported(country);
+
+        return TypedResults.Ok(isSupported);
+    }
 }

src/Core/Billing/Services/ITaxService.cs

@@ -1,10 +1,22 @@
-using Bit.Core.Billing.Models;
+namespace Bit.Core.Billing.Services;
-
-namespace Bit.Core.Billing.Services;
 
 public interface ITaxService
 {
+    /// <summary>
+    /// Retrieves the Stripe tax code for a given country and tax ID.
+    /// </summary>
+    /// <param name="country"></param>
+    /// <param name="taxId"></param>
+    /// <returns>
+    /// Returns the Stripe tax code if the tax ID is valid for the country.
+    /// Returns null if the tax ID is invalid or the country is not supported.
+    /// </returns>
     string? GetStripeTaxCode(string country, string taxId);
 
-    IEnumerable<TaxIdType> GetTaxIdTypes();
+    /// <summary>
+    /// Returns true or false whether charging or storing tax is supported for the given country.
+    /// </summary>
+    /// <param name="country"></param>
+    /// <returns></returns>
+    bool IsSupported(string country);
 }

src/Core/Billing/Services/TaxService.cs

@@ -881,15 +881,6 @@ public class TaxService : ITaxService
         }
     ];
 
-    /// <summary>
-    /// Retrieves the Stripe tax code for a given country and tax ID.
-    /// </summary>
-    /// <param name="country"></param>
-    /// <param name="taxId"></param>
-    /// <returns>
-    /// Returns the Stripe tax code if the tax ID is valid for the country.
-    /// Returns null if the tax ID is invalid or the country is not supported.
-    /// </returns>
     public string? GetStripeTaxCode(string country, string taxId)
     {
         foreach (var taxIdType in _taxIdTypes.Where(x => x.Country == country))
@@ -903,5 +894,8 @@ public class TaxService : ITaxService
         return null;
     }
 
-    public IEnumerable<TaxIdType> GetTaxIdTypes() => _taxIdTypes;
+    public bool IsSupported(string country)
+    {
+        return _taxIdTypes.Any(x => x.Country == country);
+    }
 }