HMRC says the final declaration was sent too early

What it means

The final declaration can only be made once the tax year has ended, from 6 April.

What to check

1. Which tax year you picked. A final declaration for a year can be made from 6 April after that year ends, so the one for 2026-27 opens on 6 April 2027.
2. Your quarterly updates still go in during the year. The final declaration is the last step.

How we can help

FileThat only offers the final declaration once the tax year has ended. If you saw this anyway, ask us and tell us which year you picked.

See also