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Get guidance from HMRC if you're a tax agent or an adviser.
Public access to Aggregates Levy guidance used internally by HM Revenue and Customs (HMRC).
This document contains the following information: Agreement between the UK and of Dominica on the exchange of information with respect to taxes and tax matters: London, 31 March 2012.
This document contains the following information: Agreement between the UK and Grenada for the exchange of information relating to tax matters.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
Use this technical documentation for trust and estate returns if you’re a software developer working with the Self Assessment online service.
Guidance on identical returns for Self Assessment Online software developers.
Individual returns technical specifications for Self Assessment Online software developers.
Tax avoidance schemes that HMRC believe to be live and widely available, to help those using them to avoid tax.
An A to Z of countries Social Security agreements with contribution provisions and the corresponding Statutory Instrument numbers.
Tax treaties and related documents between the UK and Solomon Islands.
Check the availability and any issues affecting the submit your Alcohol Duty return service.
Check the availability and any issues affecting the Submit a Digital Services Tax return online service.
Find newsletters containing updates and guidance on stamp taxes.
Summary of the key points arising from a meeting between representative bodies - the British Property Federation, the Chartered Institute of Taxation, the Law Society and the Stamp Taxes Practitioners' Group - with HM Re…
This guidance explains the changes to Companies Act regulations which were introduced from 4 March 2015.
Use these tables to check your employee started with you in time to qualify for paternity pay.
Find out how to register and enrol for the Shared Workspace online service.
November 2025 newsletter to update stakeholders on the latest news for tax-free savings.
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