HMRC's message · HTTP 400
No valid income sources could be found
When it appears
Triggering a calculation or submitting a final declaration.
What to check
- The client's businesses and property income at HMRC for the year.
How to fix it
Add or reactivate the income source with HMRC, then try again.
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.