diff --git a/regimes/common/common.go b/regimes/common/common.go
index 76a048da..2cc68f81 100644
--- a/regimes/common/common.go
+++ b/regimes/common/common.go
@@ -9,33 +9,6 @@ import (
 	"github.com/invopop/gobl/tax"
 )
 
-// Standard tax categories that may be shared between countries.
-const (
-	TaxCategoryST  cbc.Code = "ST"  // Sales Tax
-	TaxCategoryVAT cbc.Code = "VAT" // Value Added Tax
-	TaxCategoryGST cbc.Code = "GST" // Goods and Services Tax
-)
-
-// Most commonly used keys. Local regions may add their own rate keys.
-const (
-	TaxRateExempt       cbc.Key = "exempt"
-	TaxRateZero         cbc.Key = "zero"
-	TaxRateStandard     cbc.Key = "standard"
-	TaxRateIntermediate cbc.Key = "intermediate"
-	TaxRateReduced      cbc.Key = "reduced"
-	TaxRateSuperReduced cbc.Key = "super-reduced"
-	TaxRateSpecial      cbc.Key = "special"
-)
-
-// Standard tax tags
-const (
-	TagSimplified    cbc.Key = "simplified"
-	TagReverseCharge cbc.Key = "reverse-charge"
-	TagCustomerRates cbc.Key = "customer-rates"
-	TagSelfBilled    cbc.Key = "self-billed"
-	TagPartial       cbc.Key = "partial"
-)
-
 // Common inbox keys
 const (
 	InboxKeyPEPPOL cbc.Key = "peppol-id"
diff --git a/regimes/us/us.go b/regimes/us/us.go
index 0fbaa76f..b35deb0f 100644
--- a/regimes/us/us.go
+++ b/regimes/us/us.go
@@ -36,7 +36,7 @@ func New() *tax.Regime {
 			// Sales Tax
 			//
 			{
-				Code: common.TaxCategoryST,
+				Code: tax.CategoryST,
 				Name: i18n.String{
 					i18n.EN: "ST",
 				},