Good day, Mee1977.

For now, we're unable to delete the registration number in the invoice. You'll have to take out the information in the VAT settings so it'll no longer show in the sales form. Here's how:

1. Click Taxes, then go to the VAT tab.
2. Click Edit VAT.
3. Select Edit settings.
4. Delete the number in the VAT registration number field.
5. Click Save.

Let us know if you have additional questions. We're just a comment away.