Contact Us

A P800 is a tax calculation and HMRC will issue a P800 once a tax year has passed when they think you have overpaid or underpaid your tax. Only employees or pensioners are likely to receive a P800 because those completing tax returns should have under or over payments corrected through the self assessment system.

If you receive a P800, you should firstly check all the figures in HMRC’s calculations, by checking your wages against P60s, benefits in kind from your employer against form P11D, bank interest back to your bank statements etc. If you receive some taxable state benefits, HMRC may add them together so you might need to call them to ask for a break down of these.

Make sure HMRC haven’t missed any allowances or expenses you’re entitled to, and conversely, that they haven’t given you allowances for items you’re no longer entitled to. You don’t want another tax bill later down the line.

Once you’re happy the figures are correct, if you’re due a refund, the P800 should tell you how to go about getting your tax rebate. There are time limits for making claims for a tax refund – usually about 4 years from the end of the relevant tax year.

If you have underpaid tax of less than £3,000, HMRC will probably seek to collect it automatically from your income by adjusting your tax code. If you earn more than £30,000, HMRC could seek to collect more than £3,000 – but they can not take more than half of your wages.

If you disagree with HMRC’s calculations or you cannot afford to pay HMRC back, you should contact them as soon as possible. You might be able to spread the payments over a longer period.

Date published 6 Apr 2018

This article is intended to inform rather than advise and is based on legislation and practice at the time. Taxpayer’s circumstances do vary and if you feel that the information provided is beneficial it is important that you contact us before implementation. If you take, or do not take action as a result of reading this article, before receiving our written endorsement, we will accept no responsibility for any financial loss incurred.

Choose the right accounting firm for you

Running your own business can be challenging so why not let TaxAssist Accountants manage your tax, accounting, bookkeeping and payroll needs? If you are not receiving the service you deserve from your accountant, then perhaps it’s time to make the switch?

Local business focus icon

Local business focus

We specialise in supporting independent businesses and work with 80,684 clients. Each TaxAssist Accountant runs their own business, and are passionate about supporting you.

Come and meet us icon

Come and meet us

We enjoy talking to business owners and self-employed professionals who are looking to get the most out of their accountant. You can visit us at any of our 409 locations, meet with us online through video call software, or talk to us by telephone.

Switching is simple icon

Switching is simple

Changing accountants is easier than you might think. There are no tax implications and you can switch at any time in the year and our team will guide you through the process for a smooth transition.

See how TaxAssist Accountants can help you with a free, no obligation consultation

0800 0523 555

Or contact us