If you have been filing your own company accounts and Company Tax Return using HMRC’s online service, there is an important change coming.
The online filing service used to submit company accounts and tax returns will close on 31 March 2026. From 1 April 2026, businesses will need to use commercial software to file annual accounts and Company Tax returns with HMRC.
For some business owners, that may not sound like a major issue at first. But in practice, it could mean extra cost, extra admin, and a much steeper learning curve than they expected.
Why is HMRC closing the service?
HMRC says the current service no longer meets modern digital standards or recent changes to UK company law.
Their explanation is as follows:
“The service to support small, unrepresented businesses with simple tax affairs with their online filing does not meet modern digital standards, or recent changes to UK company law. Since online filing for Corporation Tax was introduced in 2011, the market has matured and grown. Commercial products can offer much more than the current service, such as improved validation and tax support and reminders.”
In plain English, HMRC is moving away from its basic free filing tool and expects companies to use third-party software instead.
What does this mean for business owners?
It means you now have a decision to make.
You can buy commercial software, spend time learning how to use it, and get to grips with technical filing requirements such as iXBRL (Inline eXtensible Business Reporting Language).
Or you can decide that your time is better spent running your business and leave the compliance side to professional accountants.
For many directors, this change will be the point where DIY filing stops being worth the hassle. What used to be a relatively simple process may now involve additional cost, more complexity, and a greater risk of mistakes if you are unfamiliar with the rules.
Is it time to get professional help?
If you are already busy managing your business, adding software costs, training time, and filing complexity into the mix may not be the best use of your time.
Engaging an accountant is not just about getting forms submitted. It is about making sure things are filed correctly, on time, and in a way that gives you confidence that nothing has been missed.
If we can help, email us at info@property-tax-advice.co.uk.
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