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Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
July 2025 newsletter to update stakeholders on the latest news for tax-free savings.
How to make sure you take reasonable care if you need to send tax returns and other documents to HMRC, and what happens if you do not.
Reporting and paying tax on payments received for use of image rights, including payments made to an image rights company.
Tax treaties and related documents between the UK and Bahrain.
How to claim tax relief under the Community Investment Tax Relief (CITR) scheme.
Get help if you’re a tax agent or adviser who has clients with Capital Gains Tax for shares to declare on Self Assessment tax returns.
Details of the approved commercial suppliers who provide software to complete some Inheritance Tax forms.
This document provides guidance for ISA investors on reinstating compensation in an ISA and payments outside the annual ISA subscription limit.
How to apportion the price paid for a business that has been transferred as a going concern.
Find out how to work out Foreign Tax Credit Relief if you have overlap profits or you're claiming overlap relief.
Help children and young people understand the tax system with free learning resources.
Use this technical documentation for partnership returns if you’re a software developer working with the Self Assessment online service.
Use this guidance for support if you're a software developer working with the Self Assessment Online service.
Tax treaties and related documents between the UK and Tunisia.
Tax treaties and related documents between the UK and Zambia.
Find out what to do when investors want to close or cancel their Lifetime ISA.
Arweiniad i unig fasnachwyr, landlordiaid ac asiantau i gofrestru a defnyddio ffordd newydd CThEF o roi gwybod am incwm a threuliau hunangyflogaeth ac eiddo.
Find out how much Income Tax and National Insurance contributions to pay on sporting testimonial income.
Apply to be an approved Lifetime Individual Savings Account (LISA) manager, or check the status of your application.
Don’t include personal or financial information like your National Insurance number or credit card details.
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