A related question while I'm waiting for the FBU. Seeing as they said it could take upto 6 months to start paying, but that it would be backdated, I'll likely get a 6 month lump sum in UK tax year 2020-21 (say June 2020). Some of that, say 3 months worth, would be for payments that I should have received in UK tax year (2019-20). I know it's a way off, but how would I report that on my UK tax returns. I'm guessing it will all have to be reported as income in 2020-21, because that's when it was received, even though some of it should have been for 2019-20. Anyone know for sure?