astanka:
Sorry to jump onto this but just had my letter through and hmrc want to decrease my personal allowance yo 4.5k next year which means paying approx 16k in tax next year. I know its an estimation based on me battering the overtime recently but do you just ring them up and they will adjust it to a more accurate forecast because i make it they predict a salary of somewhere between 70/80k ?Thanks
HMRC cannot reduce your personal allowance.
What they can do is reduce your tax code. And yes you just ring them and justify why they are wrong in their assumption.
But your story doesn’t make sense you have to have 2 or multiple sources of income for them to reduce your tax code not just overtime at your only source of income.