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Apply to convert the Class 3 National Insurance contributions you paid while you worked abroad to Class 2 contributions.
Find out what a Junior ISA is and how to manage applications.
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.
Tax treaties and related documents between the UK and Qatar.
Tax treaties and related documents between the UK and Taiwan.
Learn more about how tax codes work and reporting a change of circumstances.
Find out the rules on investments using open market price rules and how you can charge for your services as an ISA manager.
Register a new partner who is not an individual for Self Assessment, for example a company or trust, using form SA402.
Tax treaties and related documents between the UK and South Korea.
Guidance for Child Trust Fund (CTF) providers on how to operate a Child Trust Fund scheme.
Find out about income and benefits from the transfers of assets abroad or from Non-Resident Trusts.
Use this list to find a Child Trust Fund account provider authorised by HMRC.
Tax treaties and related documents between the UK and Nigeria.
Use Self Assessment software to help you populate your client's Self Assessment tax return if you're a tax agent or adviser.
This factsheet contains information about the increased penalty percentage HMRC may charge when your return is more than 12 months late.
Find out how to complete the employment pages of your Self Assessment tax return if your employer provides living accommodation for you or your relations.
When an Child Trust Fund or Junior ISA can be transferred and what information you need.
Tax treaties and related documents between the UK and Bulgaria.
Find out who can be an ISA manager, how to apply and when to tell HMRC you'll stop being a manager.
There are special rules for tax and National Insurance if you work in the oil and gas industry.
Don’t include personal or financial information like your National Insurance number or credit card details.
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