A P800 tax calculation is the form HMRC uses to tell you you’ve paid the wrong amount of tax. If you haven’t paid all the tax you owe, HMRC will take action to get it from you. If you’ve overpaid, you can get a tax rebate.
Is a P800 a tax notification?
Your P800 or Simple Assessment will tell you how to get a refund or pay tax you owe. You will not get a P800 or Simple Assessment if you’re registered for Self Assessment. Your bill will be adjusted automatically if you’ve underpaid or overpaid tax.
How do I find how much tax I’ve paid?
Use the service to:
- check your tax code and Personal Allowance.
- see if your tax code has changed.
- tell HM Revenue and Customs (HMRC) about changes that affect your tax code.
- update your employer or pension provider details.
- see an estimate of how much tax you’ll pay over the whole tax year.
Does HMRC automatically calculate tax?
If you submit your tax return on paper, HMRC normally calculate your tax for you and send you a tax calculation, form SA302. If you submit your tax return online, HMRC’s online system will calculate your tax automatically, and you can view the calculation online or print it out.
What does a P800 tax form look like?
By HMRC’s standards, a P800 is fairly easy to understand. It’ll show your income for the time period in question, along with expenses that you’ve already claimed, before detailing the P800 tax calculation.
What happens if you receive a P800 from HMRC?
But there are still a few things to bear in mind if you receive a P800 that shows you have underpaid tax: If it is for an earlier tax year, HMRC may be too late to be collect it. Apart from in cases of taxpayer neglect or fraud, HMRC are not permitted to assess tax that fell due more than four tax years previously.
What to do if you have not received a P800?
It also tells you what to do if you think you have paid the wrong amount of tax, but you have not received a P800 calculation. For guidance on how to pay your P800 bill, including via your tax code or by making a ‘voluntary payment’, please see our news piece How to pay the tax bill shown on your form P800.
Can a P800 tax calculation go haywire?
Sadly, as with most tax-related matters, yes, things can go haywire when it comes to your tax review, and this is why is pays to be vigilant and let HMRC know about anything you are concerned about.
