Symptom
You are receiving the below error message when attempting to publish an invoice.
Tax rate id is not allowed for tax address region.
Cause
This error message can sometimes appear on your invoices if an incorrect VAT code is being allocated.
Resolution
To clear this error, you will need to do the following:
VAT Registered Companies:
Unpublish the invoice.
Select a different VAT code from the dropdown menu that has the same value %.
Publish the invoice again.
Non-VAT Registered Companies:
Unpublish the invoice.
Go to the Integrate page.
Choose a 0% VAT code from both the Purchases VAT Code and Sales VAT Code dropdown menus.
Save.
Publish the invoice again.