“Being due a tax rebate” means that for some reason you paid more tax than you were supposed to. The good news is that now HMRC has to give it back to you.
Sometimes they do it automatically, but most times you have to claim it yourself.
When am I due a tax rebate?
Full-time employed (PAYE ):
You start a new job, and you get an emergency tax code HMRC sends the wrong tax code to your employer Your employer didn’t use the correct tax code You have more than one PAYE job Your company benefits change: certain employee perks (company car, health insurance, etc.) are taxable and can change your tax code If you had some expenses for work, for example washing your uniform or clothing, etc. You can claim these back
Self-employed:
Other less common situations:
You can sometimes pay too much tax on savings interest You’re a pensioner with more than one pension Your state benefits change
How do I check if I’m due a tax rebate?
How do I claim it?
It depends on your situation, but: