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Get help if you’re a tax agent or adviser who has clients with property rental income to declare on Self Assessment tax returns.
If you're self-employed or in a partnership, use this calculator to work out your overlap relief figure for self-assessment for the 2023 to 2024 tax year.
When and how to include overlap relief in your 2023 to 2024 tax return if you have transition profit.
When you may need to make a change to your Self Assessment tax return for SEISS payments, and how to do it.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
Use this helpsheet to understand tax equalisation and prepare tax returns for tax equalised individuals.
Use this helpsheet to fill in your Self Assessment tax return and the trading pages of a Partnership Tax Return.
Use this technical documentation for partnership returns 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 or revenue expenditure to declare on Self Assessment and Company Tax Returns.
Get help if you’re a tax agent or adviser who has clients with private and personal expenditure to declare on Self Assessment tax returns.
Find out about the treatment of debts, loans and securities for Capital Gains Tax.
Find out how to value your farm stock for Self Assessment purposes.
Use this helpsheet to work out Foreign Tax Credit Relief for Capital Gains and how to complete the Trust and Estate tax return.
The loan charge will not apply to any disguised remuneration loans before 9 December 2010.
Use this guidance for support if you're a software developer working with the Self Assessment Online service.
This introductory tax guide is intended for businesses looking at employee ownership for the first time, rather than professional advisers.
Find information about tax and National Insurance contributions for MPs and ministers.
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 if you’re a tax agent or adviser who has clients with Income Tax losses to declare on Self Assessment tax returns.
Do not include personal or financial information like your National Insurance number or credit card details.
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