We understand how frustrating it is to hear that the joint Company Accounts and Tax Online (CATO) filing service is shutting down on 31st March 2026, and its closure leaves many small businesses unsure of what’s next. As a UK based company operating in the online tax filing space since 2018, we offer a highly affordable alternative to CATO on our secure, cloud-based platform.
Why is Cato Closing?
The closure of CATO reflects a wider shift to modernise how UK companies report financial data. New rules under the Economic Crime and Corporate Transparency Act (ECCTA) require updated digital standards, enhanced tax reporting, and identity verification. From 1 April 2026, CATO will no longer meet these needs—which is why companies will need modern software solutions like ours to stay compliant.
We understand the importance of simplicity and support for small businesses. That’s why, unlike other providers, our service lets you file your CT600, iXBRL accounts to HMRC and Companies House all at once—no switching platforms, no extra steps.
Type your company name into Quick Start and select dates, company size, and tick the box for HMRC & Companies House.
This will generate the CT600 return, Companies House Accounts and IXBRL filings, which you can update and save at any time.
Complete all 3 filing templates by providing your company’s information, via our simple guided steps and inbuilt validation.
Click to chat with us if you have any questions during the filing process and our in-house team of experts will respond straight away.
Recognised software provider for Confirmations Statement, Annual Accounts and Company Incorporation Agent.
Recognised software provider for CT600 and iXBRL accounts, SA800 and SA100. HMRC supervised agent