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Check the availability and any issues affecting the Online Agent Authorisation online service.
Check the availability and any issues affecting the Child Trust Fund (CTF) online service.
Find out how the HMRC Public Bodies Group can help with a tax issue if you're a public body.
Report fraud, bribery and corruption to the Animal and Plant Health Agency (APHA).
Find out how to create a CSV file to submit your declaration, what file layout to use and how to resolve problems with file upload failures.
Tax and duties HM Revenue and Customs (HMRC) can ask for a security on, how long they can keep it and what to do if you disagree.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
Find technical resources for software developers working with the EC Sales List online service.
If you import goods from the EU to Great Britain, from 31 January 2025 you will need to submit a safety and security declaration.
Bulletin for Child Trust Fund (CTF) providers about amendments to the CTF regulations and guidance notes.
Find out the rules from 1 January 2018 if you promote or use arrangements that are meant to give someone a VAT or other indirect tax saving or a tax deferral.
Find out what information you need to collect under the Cryptoasset Reporting Framework (CARF).
How to avoid being involved in tax avoidance schemes, if you are moved between umbrella companies as an agency worker or contractor.
Real Time Information (RTI) Rules and Interface Management (RIM) artefacts and supporting technical specifications for software developers.
Get help if you’re a tax agent or adviser who has clients with directors' loan accounts to declare on Company Tax Returns.
Use the GAAR Advisory Panel opinion on a repayment of a participator loan through transactions involving group companies, to help you recognise when arrangements may not be abusive tax arrangements.
Tax treaties and related documents between the UK and Bermuda.
Find trade and commercial contacts for Community System Providers (CSPs).
Check the availability and any issues affecting the Construction Industry Scheme (CIS) online service.
What to expect if HM Revenue and Customs investigates you, the penalties that may be charged and what details about you can be published.
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