HMRC's message · HTTP 400
netVatDue should be the difference between the largest and the smallest values among totalVatDue and vatReclaimedCurrPeriod
When it appears
Submitting a VAT return.
What to check
- Boxes 3, 4 and 5.
- Box 5 is entered as a positive figure.
How to fix it
Set box 5 to the difference between boxes 3 and 4, as a positive number.
Making Tax Digital in Accountin
Accountin will send VAT returns and income tax updates to HMRC once HMRC grants it live access. It then shows HMRC's code and message next to a plain explanation, and keeps HMRC's reply against every submission.