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Guides: deadlines and rules for small companies

UK deadlines and rules in plain words, each with the official source.

  1. File your company accounts and CT600 yourself, now that HMRC's free service has closed
    Many small company directors used HMRC's free online service to file accounts and the Company Tax Return together. That service is gone. Here is what
  2. Making Tax Digital for Income Tax: who is in from 2026, 2027 and 2028, and what to do
    Making Tax Digital for Income Tax changes how sole traders and landlords report to HMRC. Instead of one tax return a year, you keep digital records and
  3. Companies House: software-only accounts from 1 April 2028, and identity verification
    Two big changes reach every UK company director. Identity verification is already a legal duty. Software-only accounts filing starts on 1 April 2028. This