Hi,
If you need to cancel your VAT registrations because you have ceased making taxable supplies then you should let us know within 30 says of this happening.
If you send in your cancellation form then the quarterly period up until the end of April will be the last one you need to complete.
You can recover your accountant's invoice on your final return or if the invoice is received after you send in your final return then you can complete a VAT 427 form to recover this.
You can see the guidance here:
What will happen when you apply to cancel your registration
Reclaiming VAT after your VAT registration was cancelled
Thank you.