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Find HMRC payroll test data for software developers.
If you're an electricity producer or energy supplier, find out how to correct errors and what to do if you've paid too little or too much levy.
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.
When HMRC will issue a joint and several liability notice to individuals who have been involved with companies which have become insolvent and have a tax liability with HMRC.
Find out how to pay if you are registered to pay Digital Services Tax.
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This page has been archived.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.
This factsheet tells you about the penalties HMRC may charge if there has been an under-assessment and you have not told us about it within 30 days.
Find out about penalties you may have to pay if HMRC have sent you a follower notice and you have not taken corrective action on time.
This factsheet explains about checks on records and assets when HM Revenue and Customs visit a business premises.
A bi-monthly magazine for employers and agents that gives up-to-date information on payroll topics.
Get help if you’re a tax agent or adviser who has clients with Income Tax losses to declare on Self Assessment tax returns.
Find out how HMRC’s Office of the Data Protection Officer (ODPO) collect and use your personal information
Use this template to send information about income belonging to others, if you receive a statutory notice from HMRC.
Check the availability and any issues affecting the Secure Data Exchange Service (SDES).
Find out when HMRC may ask for a deposit or bond if you're an employer or trader.
Technical specifications for Stamp Tax Online software developers.
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.
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