We use some essential cookies to make this website work.
We’d like to set additional cookies to understand how you use GOV.UK, remember your settings and improve government services.
We also use cookies set by other sites to help us deliver content from their services.
You have accepted additional cookies. You can change your cookie settings at any time.
You have rejected additional cookies. You can change your cookie settings at any time.
Departments, agencies and public bodies
News stories, speeches, letters and notices
Detailed guidance, regulations and rules
Reports, analysis and official statistics
Consultations and strategy
Data, Freedom of Information releases and corporate reports
Help improve GOV.UK Sign up to take part in user research (opens in a new tab)
Find out when you can expect to receive a reply from HMRC to a query or request you've made.
If you're a sole trader or landlord, use the online service to sign up for Making Tax Digital for Income Tax.
Use this service to claim tax relief on your personal pension and workplace pension scheme or change an existing claim.
Use the online service to update details of your trust, declare no changes, authorise an agent, get proof of registration or close a trust on the trust register.
How to report your income and claim tax reliefs and any repayment due to you using the SA100 tax return, for 6 April 2025 to 5 April 2026.
Find out what software you will need to report self-employment and property income to HMRC.
Find out how to appeal an individual or partnership Self Assessment penalty.
Tell HMRC if you've left or intend to leave the UK and find out how to get relief or a repayment on UK Income Tax (P85).
How to claim a refund in the current tax year on an overpayment of tax when you've flexibly accessed part of your pension pot.
Find out how to get a certificate of residence as an individual, company or organisation so you do not get taxed twice on foreign income.
Find and use tools and calculators that will help you work out your tax.
How to register a trust on the Trust Registration Service.
Use this tool to help you find software that meets your needs for Making Tax Digital for Income Tax.
Use form CA5403 to request a copy of your National Insurance number by post.
How to work out your adjusted net income and the circumstances when it can affect your tax liability.
Use form SA1 to register for Self Assessment for any reason other than self-employment.
Use the online service or postal form CF411 to apply for National Insurance Home Responsibilities Protection, or to transfer it from a spouse or partner.
Use this tool to find out what the numbers and letters in your tax code mean and how much tax you will pay.
If you're an agent, use the online service to sign up your client for Making Tax Digital for Income Tax.
Guidance for sole traders, landlords, and agents about how to use HMRC's new way to do Self Assessment.
Do not include personal or financial information like your National Insurance number or credit card details.
To help us improve GOV.UK, we’d like to know more about your visit today. Please fill in this survey (opens in a new tab and requires JavaScript).