Use HMRC Online and Fix Tax Problems
HMRC online tools help you check tax, update your details and spot problems early.
Last updated: 10.05.2026
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1. Set up your personal tax account
A personal tax account lets you see your tax records and some benefit information in one place. Without it, you may find it harder to check if your tax is correct.
What to do: Go to the GOV.UK personal tax account page and follow the steps to sign in or create a Government Gateway user ID. Link your National Insurance number and answer the security questions to view your tax details.
What do you need: You need your National Insurance number, an email address, and some information from payslips, P60 or other tax documents.
Outcomes: You will have an online account where you can quickly check and update some of your tax and personal information.
Lifehack: Turn on email alerts in your account so you know when HMRC adds new messages or changes something important.
2. Download the HMRC app
3. Check your tax code and current tax
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