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Data, Freedom of Information releases and corporate reports
Tax treaties and related documents between the UK and Ireland.
Learn more about getting started as an employer or running a small business including registration, payroll, tax returns, tax bills and payments.
Find information on completing the employment section of your Self Assessment tax return.
Use this calculator to work out a director's National Insurance contributions for the current tax year.
If you're an ISA manager, check how to manage additional permitted subscriptions for a surviving spouse or civil partner of a deceased investor.
Find out about Double Taxation Relief and a list of territories with a double taxation treaty with the UK.
How to claim UK tax relief on your UK income under double taxation agreements if you’re a non-resident.
Register your client’s estate online if you’re a tax agent or adviser.
A guide for people who want to store their will or codicil (an update to the will) with HM Courts and Tribunals Service.
Find out which mortgage providers and lenders accept printed tax summaries.
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.
How to migrate from the Pension Schemes Online service to the Managing Pensions Schemes service and manage and view your pension schemes.
Find out how to get certain payments tax-free for foster carers, adult placement carers, kinship carers and staying put carers.
Check if the Let Property Campaign applies to you and find out how to make a disclosure to HMRC for unpaid tax.
Tax treaties and related documents between the UK and Switzerland.
Find out the rules for claiming Business Asset Disposal Relief which reduces the amount of Capital Gains Tax on a disposal of qualifying business assets on or after 6 April 2008.
When an Individual Savings Account (ISA) can be closed, and how to void or repair an ISA if you're an ISA manager.
Check if you should pay National Insurance in the UK or social security contributions in the EU, Gibraltar, Iceland, Liechtenstein, Norway, or Switzerland.
Check a list of gilt-edged stocks and bonds charged on the National Loans Fund.
Use the online service to register a deceased person's estate if you’re an executor, administrator or personal representative.
Don’t include personal or financial information like your National Insurance number or credit card details.
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