Self Assessment refunds, appeals and penalties

Please note: Self Assessment guidance from HM Revenue & Customs can be found on the GOV.UK website. We provide links to the key information below.


Use this tool to find out what you need to do to get a tax refund (rebate) if you鈥檝e paid too much Income Tax.


What to do when you disagree with a tax decision (HMRC1) - appealing against a decision, getting a review by HMRC and reasonable excuses.


Find out how to appeal an individual or partnership Self Assessment penalty.


Appeal to the tax tribunal - the First-tier Tribunal (Tax) - against tax decisions: how to appeal, the hearing, if you lose your case.


If you鈥檝e missed Self Assessment deadlines get an estimate of how much you鈥檒l need to pay in penalties and interest.