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Get guidance from HMRC if you're a tax agent or an adviser.
Real Time Information (RTI) Rules and Interface Management (RIM) artefacts and supporting technical specifications for software developers.
This factsheet explains what happens if you get a warning notice under the Serial Tax Avoidance Regime (STAR).
Use this guidance for support if you're a software developer working with the Self Assessment Online service.
Tax avoidance schemes that HM Revenue and Customs believe to be live and widely available, to help those using them to avoid tax.
Impacting definitions and the Exchequer Secretary to the Treasury's declaration for tax information and impact notes.
This bulletin tells you about the new telephone number to call when contacting Enforcement and Insolvency Services.
Use these materials to communicate with your members, clients, and customers about changes to VAT interest charges, late submission and late payment penalties from January 2023.
Tax avoidance schemes that HM Revenue and Customs (HMRC) believe to be live and widely available, to help those using them to avoid tax.
Get guidance from HMRC if you're a tax agent or an adviser
Trust and estate returns technical specifications for Self Assessment Online software developers.
Autumn Statement 23 November 2016, Scottish Draft Budget 15 December 2016 and Income Tax changes from 6 April 2017.
Web channel user guide for the New Export System.
This factsheet provides information about the use of third party information notices for enablers.
Partnership returns technical specifications for Self Assessment Online software developers.
Find out about the new Anti-Tax Avoidance Directive (ATAD) about controlled foreign companies (CFCs).
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