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Guidance and regulation

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  • Use the CO2 emissions ready reckoners to work out the percentage benefit for petrol powered and hybrid powered company cars.

  • Prevent duty guidance for specified authorities in England and Wales.

  • You must be registered as an Authorised Corporate Service Provider (ACSP, also known as an authorised agent), or a user for an ACSP.

  • How HMRC uses debt enforcement powers, debt collection agencies and what happens if you live abroad when you do not pay your tax bill.

  • Use this form to work out interest and penalties for tax years ending 5 April 2006 to 5 April 2024.

  • Immigration staff guidance about the different visitor categories for visiting the UK and how UK Visas and Immigration makes decisions on visitor cases.

  • HM Treasury guidance on what to consider when designing an evaluation.

  • Correct a mistake or update information you provided in your online claim for redundancy.

  • How to submit a formal request to HM Land Registry for information about land and property.

  • FCDO travel advice for Iraq. Includes safety and security, insurance, entry requirements and legal differences.

  • FCDO travel advice for Malaysia. Includes safety and security, insurance, entry requirements and legal differences.

  • FCDO travel advice for Rwanda. Includes safety and security, insurance, entry requirements and legal differences.

  • Use this form to report Capital Gains Tax on UK property or land, if you cannot use our online service.

  • Guidance for local authorities and schools about children educated at home.

  • Apply for grants and other funding to increase productivity, manage your land to benefit the environment and support your agricultural business.

  • Guidance for traffic authorities on the use of traffic signs and road markings.

  • Optional key stage 1 (KS1) English reading test materials used in 2025.

  • Find out how to obtain qualified teacher status (QTS) to teach in a maintained school or non-maintained special school in England.

  • How to get information including patient information leaflets (PILs), details on how the medicine can be used (SPCs) and scientific reports (PARs).

  • If you're an agent, use the online service to sign up your client for Making Tax Digital for Income Tax.