Check for workarounds to the declaration completion instructions for Customs Declaration Service known errors if you’re submitting a customs clearance request or customs declaration.
Find and use tools and calculators that will help you work out your tax.
Find out how to complete and submit a return using the HMRC spreadsheet or electronic flat text file (EFTF).
Check how your annual allowance could have been affected by the public service pensions remedy (also known as McCloud).
Find recognised suppliers and software for Corporation Tax returns and supplementary pages.
This briefing sets out the new process for claiming PAYE employment expenses that comes into effect on 14 October 2024.
This factsheet tells you about the penalties HMRC may charge if you submit returns and pay duty late.
A definition of tonnage tax, which types of ship qualify, how the tax is worked out and the rules it follows.
Look up Customs Declaration Service error codes.
A guide to the law relating to Child Tax Credit and Working Tax Credit including entitlement, changes in circumstances and how payments are made