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Find out about penalties HMRC may charge if you facilitate avoidance schemes involving non-resident promoters.
Event report XML schema, validation rules and error messages for Pension Schemes Online software developers.
Check the availability and any issues affecting the Rebated Oils Enquiry Services online service.
Guidance on identical returns for Self Assessment Online software developers.
Returns technical specifications for Self Assessment Online software developers.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment Online service.
Use this technical documentation for trust and estate returns if you’re a software developer working with the Self Assessment Online service.
Find HMRC payroll test data for software developers.
Tax avoidance schemes that HM Revenue and Customs believe to be live and widely available, to help those using them to avoid tax.
Tax avoidance schemes that HM Revenue and Customs (HMRC) believe to be live and widely available, to help those using them to avoid tax.
Guidance for Stamp Tax Online software developers on Government Gateway, HMRCIRmark and stamps taxes.
Draft technical guidance covering changes to anti-avoidance regimes, published in Finance (No2) Bill 2021 which will strengthen the sanctions against those who promote or enable tax avoidance schemes.
Information given by HM Revenue and Customs to tax agents when dishonest conduct may have happened.
Reciprocal Agreement with Netherlands Antilles relating to the European Union (EU) Directive on taxation savings income in the form of interest payments.
Non-reciprocal Agreement with the Turks and Caicos Islands relating to the EU Directive on taxation of savings income in the form of interest payments.
Ten things you need to know if you receive an accelerated payment notice.
Don’t include personal or financial information like your National Insurance number or credit card details.
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