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Get help, support and guidance with filling in your Self Assessment tax return.
Employment Appeal Tribunal Judgment of Lord Stuart on 8 April 2024.
Register for Self Assessment and Class 2 National Insurance when you've joined a partnership using form SA401.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment Online service.
Use the Self Assessment helpsheet (HS325) to work out your other taxable income and include this in your tax return.
Self Assessment customers have less than one month to file their tax returns
Use this guidance for support if you're a software developer working with the Self Assessment Online service.
Use the Self Assessment helpsheet (HS263) to work out tax credit relief on income that you've paid foreign tax on.
Guidance for local authorities, public health bodies and the NHS on using ‘deep dive’ self-assessment tools to improve their tobacco control work.
Find out whether you need to pay UK tax on foreign income - residence and ‘non-dom’ status, tax returns, claiming relief if you’re taxed twice (including certificates of residence)
An honest account of the UK’s performance to date and how much our agenda has evolved.
First published during the 2010 to 2015 Conservative and Liberal Democrat coalition government
Support and technical specifications for software developers working with the Self Assessment online service.
Find out whether you need to pay tax on your UK income while you're living abroad - non-resident landlord scheme, tax returns, claiming relief if you’re taxed twice, personal allowance of tax-free income, form R43
Use supplementary pages SA102MLA to record employment income on your SA100 Tax Return if you're a member of the Northern Ireland Legislative Assembly.
The self-assessment form, essential core criteria and supporting information for SSP programme validation applicants.
Don’t include personal or financial information like your National Insurance number or credit card details.
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