HMRC CT600 returns for self-filers

[John_Hunter]

There are a few topics on here which are closed about the new CT600 tax return service and that from April 2026 you will have to use a authorised software.

Is QuickFile going to add this for self filers?

As if they are not I might as well do my bookkeeping and accounts in the software I need to use for filing which will resolve having to pay twice and do the work twice. Surely QuickFile will lose lots of customers if they don’t implement this and become a verified software for CT600?

[QFSteve]

Hello @John_Hunter

Thank you for getting in touch.

As you’re likely aware, HMRC and Companies House have announced plans to close their joint corporate tax filing service by April 2027. This change will require businesses to use commercial software to file Company Accounts and Corporation Tax returns separately.

At this time, QuickFile has no current plans to develop a Corporation Tax and Accounts filing service for limited companies.

However, you do have two options to consider going forward:

1. File through one of our panel accountants – This is a straightforward and fully managed service, with fees starting at approximately £100 + VAT per company.

Year-end accounts price comparison service
https://support.quickfile.co.uk/t/year-end-accounts-price-comparison-service/12003

2. Use a third-party self-filing service – HMRC maintains a list of approved commercial software providers, which you can access at the following link (please refer to packages that are “suitable for self-filers”):

Corporation Tax Commercial Software Suppliers

List of commercial software suppliers for Corporation Tax

We remain fully committed to adopt the planned rollout of HMRC’s Making Tax Digital program for Limited Companies. Regrettably, due to the depth and complexity of the Corporate Tax and Accounts Filing regime, we are unable to develop software for the existing gateway.

If you have any further questions or need help connecting with an accountant, feel free to reach out.