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Find out when you can expect to receive a reply from HMRC to a query or request you've made.
Find and use tools and calculators that will help you work out your tax.
Find out how to appeal an individual or partnership Self Assessment penalty. For example, either online or by post using forms SA370 or SA371.
Use form SA1 to register for Self Assessment for any reason other than self-employment.
Find out about tax relief available when you sell or dispose of your main home.
How to get online help with Self Assessment from HMRC by using our digital assistant, community forums, YouTube videos and online tools.
Find software suppliers for tax returns, supplementary pages and attachments.
When and how to include Overlap Relief in your 2023 to 2024 tax return if you have transition profit.
Register for Self Assessment and Class 2 National Insurance when you've joined a partnership using form SA401.
Get help to make a Time to Pay arrangement if you are an individual or business who owes a debt to HMRC.
Find out about the Rent a Room Scheme if you're a trader, owner occupier or tenant.
Learn more about getting started with Self Assessment including registration, tax returns, tax bills and payments.
How to report profit on your Self Assessment tax return from 2023 to 2024 if your accounting year does not end on or between 31 March to 5 April.
Find help about filling in the Capital Gains Tax summary pages of your tax return when someone dies.
How to work out your transition profit for the 2023 to 2024 tax year if you are affected by the new tax year basis (Basis Period Reform).
Find out how to calculate your taxable profits.
Learn more about getting started as an employer or running a small business including registration, payroll, tax returns, tax bills and payments.
Learn more about your responsibilities if you're running a small business including registration, tax returns, record keeping, tax bills and payments.
Use the SA303 form to apply to reduce your Self Assessment payments on account.
Find out about Capital gains if you sell or dispose of a shareholding.
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