It's been this way in the UK for a long time, though it's set at £1.20 no-questions-asked via the basic PAYE portal and any amount you want to claim over the £6

It's been this way in the UK for a long time, though it's set at £1.20 no-questions-asked via the basic PAYE portal and any amount you want to claim over the £6/week threshold on the self-assessment if you can evidence it (with receipts) and prove it was necessary for the remote work.