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
Use this helpsheet to fill in your Self Assessment tax return and the trading pages of a Partnership Tax Return.
Check the availability and any issues affecting the Self Assessment payment plan service.
Get help if you’re a tax agent or adviser who has clients who must complete Trust and Estate Tax Returns.
Use this helpsheet to help you fill in your Self Assessment tax return when you get payments in kind from your employer.
Get help to declare on Self Assessment tax returns if you’re a tax agent or adviser who has clients with Capital Gains Tax for land and buildings.
Get help if you’re a tax agent or adviser who has clients with Capital Gains Tax for shares to declare on Self Assessment tax returns.
Find out how to fill in the Partnership Tax Return for partnerships that operate partly overseas or where one or more partners are not resident in the UK.
Use this technical documentation for trust and estate returns if you’re a software developer working with the Self Assessment online service.
Use this technical documentation for partnership returns if you’re a software developer working with the Self Assessment online service.
Find out if you need to pay tax on income from goods or services traded online.
This factsheet explains the checks on tax affairs when HMRC visits a business premises unannounced.
This factsheet tells you about old Self Assessment penalty rules and when they apply.
Use this guidance for support if you're a software developer working with the Self Assessment Online service.
Get help if you’re a tax agent or adviser who has clients with Capital Gains Tax for trusts and estates income to declare on Self Assessment tax returns.
Find out how partnerships are treated for Capital Gains Tax when completing your Self Assessment tax return.
Find information about tax and National Insurance contributions for MPs and ministers.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
Reporting and paying tax on payments received for use of image rights, including payments made to an image rights company.
Get help if you’re a tax agent or adviser who has clients with capital allowances for plant and machinery to declare on Self Assessment and Company Tax returns.
Use this technical documentation for trust and estate returns if you’re a software developer working with the Self Assessment Online service.
Don’t 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).