Tag: backdated sick note

The rules around sick notes in the UK are not complicated, but they are scattered – a bit in employment law, a bit in NHS guidance, a bit in whatever your employer’s absence policy says. And several of them changed in April 2026. This is all of it in one place: who needs a note and when, who can issue one, how long it can cover, what it can and cannot be backdated to, what you get paid, and what your employer is actually allowed to require.