CASC Accounts CT600 Filing Service
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HMRC End Free Filing Service

From 1st April 2026 many unincorporated CASCs will need to use commercial software to file annual accounts and Company Tax returns with HMRC. Their online filing service will close on 31st March 2026. Your CASC can still use the service to file and amend your Company Tax Return with HMRC, and your accounts with Companies House up to and including 31st March 2026.

Which clubs are affected?

If your club is incorporated (i.e., Limited Company), or if your club is unincorporated and has taxable income that falls into one of the following categories:

  • You have Trade turnover in excess of £50k
  • You have Rental income in excess of £30k - or
  • You receive a Random request to file from
    HMRC (becoming more common)

    • If your club falls into any one of the above categories, you will need to file Forms CT600 & CT600E online.

    Note: ACASC has partnered with a specialist accounts filing software supplier to provide an Accounts Checking & Filing Service for CASCs. The complete service will be available only on a first-come, first-served basis.

    Please complete this form if you wish to know more detail. Note: There is a brief Questionnaire on the following page. It helps us to assess a club's needs.