diff --git a/src/PowderCoating.Application/Mappings/InvoiceProfile.cs b/src/PowderCoating.Application/Mappings/InvoiceProfile.cs
index e18f687..8e1fe57 100644
--- a/src/PowderCoating.Application/Mappings/InvoiceProfile.cs
+++ b/src/PowderCoating.Application/Mappings/InvoiceProfile.cs
@@ -33,6 +33,10 @@ public class InvoiceProfile : Profile
             .ForMember(d => d.BalanceDue, o => o.MapFrom(s => s.BalanceDue))
             .ForMember(d => d.SalesTaxAccountName, o => o.MapFrom(s => s.SalesTaxAccount != null
                 ? $"{s.SalesTaxAccount.AccountNumber} – {s.SalesTaxAccount.Name}" : null))
+            // These three collections are built manually in BuildInvoiceDtoAsync — no AutoMapper element map exists.
+            // AutoMapper 12+ throws for non-empty collections with no registered element mapping, so Ignore here.
+            .ForMember(d => d.Refunds, o => o.Ignore())
+            .ForMember(d => d.CreditApplications, o => o.Ignore())
             .ForMember(d => d.GiftCertificateRedemptions, o => o.Ignore());
 
         CreateMap<InvoiceItem, InvoiceItemDto>()