Hi John, 

Thanks for joining us on this thread. :waving_hand:

If your invoice has VAT included, then the VAT registration number should show on the invoice for both FRS and standard VAT. 

Does your invoice have a VAT code entered under the VAT column? 

Please note that the customer form style template (cog wheel > customer form style) will show 'xxxxx' by default here, and you can check that the VRN is showing on the invoice by print/previewing a transaction with VAT.

Get back to us below if you're still having trouble seeing this.  :smiling_face_with_smiling_eyes: