Issues completing and submitting returns
Unable to amend a return
A VAT3 takes up to three working days to be fully processed.
Once this time has elapsed, you should be able to amend it.
To amend a VAT3 return:
- proceed as if to file a new VAT3
- then click the 'Additional' button to see the list of periods available for amendment.
Next: Password or certificate incorrect at sign and submit