Received a P800 from HMRC?
Has a tax calculation letter just landed on your doormat? If so, take note. HMRC is currently reconciling PAYE for the 2025-26 tax year. Consequently, many people will ask one question. Received a P800 from HMRC?
Why HMRC issues a P800
Firstly, HMRC carries out this reconciliation every year. Typically, it runs between June and November. During this period, HMRC calculates the Income Tax paid by individuals. Then, it checks whether the correct amount has been collected. Sometimes, however, it spots a difference. In that case, it may issue a tax calculation letter. This letter is known as a P800.
Do not simply accept the figures
Importantly, do not automatically assume HMRC’s calculation is correct. Instead, check the figures against your own records carefully. Specifically, review the following:
- Your employment income
- Your pension income
- Tax deducted during the year
- Any other relevant income
- Any tax reliefs you can claim
After all, errors or missing information can affect the calculation. As a result, the letter could show too much or too little tax.
How to check your calculation
Fortunately, HMRC provides a helpful online service. Therefore, you can check how much Income Tax you paid. This covers the year ended 5 April 2026. Alternatively, you can check the figures through the HMRC app. Either way, verification takes only a little time.
What your P800 might show
Notably, a P800 can point in two directions. Firstly, it may show that you have overpaid tax. In that case, you could be due a refund. Secondly, it may show that you have underpaid. Consequently, you might need to pay additional tax. Moreover, some letters let you claim a refund online. Likewise, others let you pay the tax owed online.
Why professional advice helps
Nevertheless, the figures are not always straightforward. So, if you feel unsure, do not worry. We can review your calculation and advise whether any action is needed. After all, a quick check now can prevent problems later.
Take action today
Received a P800 from HMRC and feeling uncertain? Let us help. Send us your letter and we will review the figures. Speak to our team for tailored support today.
