diff --git a/README.md b/README.md
index 0efaadd..5cc34f6 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ You can currently only create invoices and items in the invoices. For this purpo
 Here you will find an example how to create a new invoice in sevDesk.
 
 ```go
-invoice, err := sevdesk.NewInvoice(sevdesk.Invoice{"", "clientID", "21.11.2020", "100", "RE", "contactID", "token"})
+invoice, err := sevdesk.NewInvoice(sevdesk.Invoice{"", "clientID", "21.11.2020", "100", "RE", "contactID", "16" "token"})
 	if err != nil {
 		fmt.Println("Error: ", err)
 	}
diff --git a/invoice.go b/invoice.go
index a2b2f35..7786c18 100644
--- a/invoice.go
+++ b/invoice.go
@@ -15,6 +15,7 @@ type Invoice struct {
 	Status        string
 	InvoiceType   string
 	ContactPerson string
+	TaxRate       string
 	Token         string
 }
 
@@ -122,7 +123,7 @@ func NewInvoice(config Invoice) (InvoiceReturn, error) {
 	body.Set("contactPerson[id]", config.ContactPerson)
 	body.Set("contactPerson[objectName]", "SevUser")
 	body.Set("taxType", "default")
-	body.Set("taxRate", "0")
+	body.Set("taxRate", config.TaxRate)
 	body.Set("taxText", "0")
 	body.Set("showNet", "false")