Edit invoice that's locked in a VAT return

[QFMathew]

There’s a bit of an explantion here regarding rolling back a VAT return:

@QFMathew

Have you submitted the return to HMRC manually, as I notice your account isn’t set up to file electronically?

Basically, here’s where you’re at:
1. If you’ve submitted the return manually to HMRC
1.1 If you’ve underpaid in your return
You will need to write to HMRC and ask them to reverse the VAT returns so that they can be re-posted.
1.2 If you’ve overpaid
This can typically be corrected in your next VAT return by manually adjusting the boxes.

2. If you’ve only created the return on QuickFileYou can simply roll it back, correct the errors, and re-run it

You may need to write to HMRC regarding the amended VAT return if it’s been filed with them