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Check the availability and any issues affecting the Online Agent Authorisation online service.
Forms P60 (2021 to 2022) for PAYE software developers.
Check the availability and any issues affecting the Secure Data Exchange Service (SDES).
Check if your company qualifies for Corporation Tax Animation Tax Relief and what you can claim.
Find out which form to use in different circumstances.
Find out about claims featuring General Data Protection Regulation (GDPR) provisions used to incorrectly reduce Corporation Tax liability or claim repayments of tax already paid, or both.
The PAYE recognition for payroll software developers page is for software developers who've completed development and testing and want to apply for PAYE recognition.
Find out about non-compliant umbrella companies using employment agencies to sell their tax avoidance schemes.
This page has been archived.
Get guidance from HMRC if you're a tax agent or an adviser.
Get guidance from HMRC if you're a tax agent or an adviser
If you received a grant but were not eligible or you’ve been overpaid, find out what penalties you may have to pay if you do not tell HMRC.
Internet submissions technical specifications for Real Time Information online software developers.
Find a list of simple record keeping applications, including cash basis and simplified expenses specifications.
Find out how to access and use the online New Computerised Transit System (NCTS) when exporting and importing goods in the UK, EU and beyond.
If you don't file your return, HM Revenue and Customs (HMRC) will estimate how much Corporation Tax to pay. This is called 'determination'.
How to pay the Climate Change Levy, and how long it takes for your payment to reach HMRC.
Check the availability and any issues affecting Annual Tax on Enveloped Dwellings (ATED).
Local Test Service (LTS), Gateway Reflector and compressed data xml samples for Charities Online software developers.
This factsheet explains why HMRC visits a premises to inspect excise goods and any items linked to those goods or relevant services.
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