diff --git a/regimes/pl/extensions.go b/regimes/pl/extensions.go
index 69051c20..80de224a 100644
--- a/regimes/pl/extensions.go
+++ b/regimes/pl/extensions.go
@@ -7,7 +7,7 @@ import (
 
 // Regime extension codes for local electronic formats.
 const (
-	ExtKeyKSeFVATZero       = "pl-ksef-vat-zero"
+	ExtKeyKSeFVATRegion     = "pl-ksef-vat-region"
 	ExtKeyKSeFVATSpecial    = "pl-ksef-vat-special"
 	ExtKeyKSeFEffectiveDate = "pl-ksef-effective-date"
 )
@@ -34,34 +34,43 @@ var extensionKeys = []*cbc.KeyDefinition{
 		},
 	},
 	{
-		Key: ExtKeyKSeFVATZero,
+		Key: ExtKeyKSeFVATRegion,
 		Name: i18n.String{
-			i18n.EN: "Zero VAT Extensions for KSeF",
+			i18n.EN: "Region VAT Extensions for KSeF",
 		},
-		Keys: []*cbc.KeyDefinition{
+		Codes: []*cbc.CodeDefinition{
 			{
-				Key: "wdt",
+				Code: "EU",
 				Name: i18n.String{
-					i18n.EN: "WDT",
-					i18n.PL: "WDT",
+					i18n.EN: "EU",
+					i18n.PL: "EU",
+				},
+				Desc: i18n.String{
+					i18n.EN: "Inter european trade",
+					i18n.PL: "Handel wewnątrzwspólnotowy.",
 				},
-				// TODO: description required
 			},
 			{
-				Key: "domestic",
+				Code: "domestic",
 				Name: i18n.String{
 					i18n.EN: "Domestic",
 					i18n.PL: "Krajowy",
 				},
-				// TODO: description required
+				Desc: i18n.String{
+					i18n.EN: "Domestic trade",
+					i18n.PL: "Handel wewnątrzkrajowy.",
+				},
 			},
 			{
-				Key: "export",
+				Code: "non-EU",
 				Name: i18n.String{
-					i18n.EN: "Export",
-					i18n.PL: "Eksport",
+					i18n.EN: "non-EU",
+					i18n.PL: "Poza UE",
+				},
+				Desc: i18n.String{
+					i18n.EN: "Trading with countries outside the EU",
+					i18n.PL: "Handel z krajami z poza unii europejskiej.",
 				},
-				// TODO: description required
 			},
 		},
 	},
diff --git a/regimes/pl/tax_categories.go b/regimes/pl/tax_categories.go
index 41d506b8..35c34edd 100644
--- a/regimes/pl/tax_categories.go
+++ b/regimes/pl/tax_categories.go
@@ -10,8 +10,7 @@ import (
 
 // Tax rates specific to Poland.
 const (
-	TaxRateNotPursuant       cbc.Key = "np"
-	TaxRateNotPursuantArt100 cbc.Key = "np-art100sec1point4"
+	TaxRateNotPursuant cbc.Key = "np"
 )
 
 var taxCategories = []*tax.Category{
@@ -90,7 +89,7 @@ var taxCategories = []*tax.Category{
 					},
 				},
 				Extensions: []cbc.Key{
-					ExtKeyKSeFVATZero,
+					ExtKeyKSeFVATRegion,
 				},
 			},
 			{
@@ -99,8 +98,7 @@ var taxCategories = []*tax.Category{
 					i18n.EN: "Exempt",
 					i18n.PL: "Zwolnione",
 				},
-				Exempt:     true,
-				Extensions: []cbc.Key{},
+				Exempt: true,
 			},
 			{
 				Key: tax.RateSpecial,
@@ -111,27 +109,23 @@ var taxCategories = []*tax.Category{
 				Extensions: []cbc.Key{
 					ExtKeyKSeFVATSpecial,
 				},
-			},
-
-			/*
-				 * Still working on refactoring these...
-				{
-					Key: TaxRateNotPursuant,
-					Name: i18n.String{
-						i18n.EN: "Not pursuant, pursuant to art100 section 1 point4",
-						i18n.PL: "Niepodlegające opodatkowaniu na postawie wyłączeniem art100 sekcja 1 punkt 4",
+				Values: []*tax.RateValue{
+					{
+						Percent: num.MakePercentage(40, 3),
 					},
-					Exempt: true,
 				},
-				{
-					Key: TaxRateNotPursuantArt100,
-					Name: i18n.String{
-						i18n.EN: "Not pursuant excluding art100 section 1 point4",
-						i18n.PL: "Niepodlegające opodatkowaniu z wyłączeniem art100 sekcja 1 punkt 4",
-					},
-					Exempt: true,
+			},
+			{
+				Key: TaxRateNotPursuant,
+				Name: i18n.String{
+					i18n.EN: "Not pursuant",
+					i18n.PL: "Niepodlegające opodatkowaniu",
 				},
-			*/
+				Exempt: true,
+				Extensions: []cbc.Key{
+					ExtKeyKSeFVATRegion,
+				},
+			},
 		},
 	},
 }