diff --git a/Elwig/Helpers/ClientParameters.cs b/Elwig/Helpers/ClientParameters.cs
index 0e51bec..f724993 100644
--- a/Elwig/Helpers/ClientParameters.cs
+++ b/Elwig/Helpers/ClientParameters.cs
@@ -77,9 +77,9 @@ namespace Elwig.Helpers {
 
                 DeliveryObligation = int.Parse(parameters["DELIVERY_OBLIGATION"] ?? "");
                 DeliveryRight = int.Parse(parameters["DELIVERY_RIGHT"] ?? "");
-                VatNormal = decimal.Parse(parameters["VAT_NORMAL"] ?? "");
-                VatReduced = decimal.Parse(parameters["VAT_REDUCED"] ?? "");
-                VatFlatRate = decimal.Parse(parameters["VAT_FLATRATE"] ?? "");
+                VatNormal = decimal.Parse((parameters["VAT_NORMAL"] ?? "").Replace(".", ","));
+                VatReduced = decimal.Parse((parameters["VAT_REDUCED"] ?? "").Replace(".", ","));
+                VatFlatRate = decimal.Parse((parameters["VAT_FLATRATE"] ?? "").Replace(".", ","));
 
                 TextDeliveryNote = parameters.GetValueOrDefault("TEXT_DELIVERY_NOTE");
             } catch {