Hero image

CATO Closure Joint Filing Service

Support to companies affected by CATO closure and ECCTA changes affecting tax and accounts filing.

Companies House logo
HM Revenue & Customs logo

CATO Is Closing But Filing Doesn’t
Have to Be Complicated

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.

Simple, All in one Solution

Our streamlined CT600 Micro iXBRL Accounts Filing service makes it easy to file your tax return and statutory accounts in one go to both HMRC and Companies House – without the complexity of navigating multiple systems.

Fully Compliant and Future-Proof

Built to meet the latest HMRC and Companies House standards, our service ensures your filings are accurate, HMRC and Companies House compliant, secure, and aligned with new requirements under the ECCTA.

No More Filing Headaches

With intuitive workflows, built-in validations, and dedicated UK-based support, our platform takes the stress out of compliance – so you can focus on running your business.

Why is Cato Closing?

ECCTA 2023

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.

People talking

A Smarter Way to File All in One Place:

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.

Ready to simplify your filings? Sign up in minutes and start submitting your tax and accounts the easy way.

Getting Started On Our Software Has
Never Been Simpler

Our easy-to-use platform walks you through each step of the filing process
1

Type your company name into Quick Start and select dates, company size, and tick the box for HMRC & Companies House.

 Type your company name into Quick Start...
2

This will generate the CT600 return, Companies House Accounts and IXBRL filings, which you can update and save at any time.

This will generate the CT600 return
3

Complete all 3 filing templates by providing your company’s information, via our simple guided steps and inbuilt validation.

Complete all 3 filing templates by providing your...
4

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.

Click to chat with us if you have any questions during...
Update your templates and save your progress at any time. You only pay when you’re ready to submit your filings. Get started to access the platform.
Calculator on desk

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

Calculator on desk

What Our Customers Have Said

  • Accept icon
    Handle all your essential filings in one place: CT600, Micro iXBRL accounts, and Companies House submissions
  • Accept icon
    Streamline your filing process with an easy-to-use platform that reduces the complexity of managing multiple filings
  • Accept icon
    Stay fully compliant with HMRC and Companies House regulations

Only £139 + VAT

The only alternative to CATO at an all-inclusive price with all the filings you need for instant online submission to Companies House & HMRC.

Get Started

FAQs

Can I use your service to file Tax Returns and Companies House accounts at the same time?
Yes! Our platform is specifically designed to let you file your CT600 and iXBRL accounts to HMRC, and statutory accounts to Companies House—all in one seamless process.
Is your software suitable for non-trading or dormant companies?
Yes, we accommodate non trading and dormant company filings as required by Companies House.
Do I need to use commercial accounting software like Xero or Sage to use your service?
No, our cloud platform is designed to be used independently of other available commercial software with our easy-to-use templates.
How do I enter my financial data? Can I upload a CSV file or use spreadsheet data?
You simply enter your data directly onto our easy-to-use templates. Our specialist, UK based, support team are on hand to answer any queries you may have.

More Information on filing your
Company Accounts and Tax Returns