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CATO

CATO Closure Joint Filing Service

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

!
From 1 April 2026, CATO will no longer meet the needs — which is why companies will need modern software solutions like ours to stay compliant.
CATO IS CLOSED

Filing doesn't have to be complicated.

Now that Company Accounts & Tax Online (CATO) has closed, small businesses need affordable accounting software to continue to file. As a UK-based company operating in the online tax filing space since 2018, we offer a low-cost all-inclusive joint filing service on our secure, cloud-based platform — so you can keep filing company accounts and tax online without disruption.

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 statutory accounts to Companies House all at once — no switching platforms, no extra steps.

Everything 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 statutory accounts to Companies House all at once — no switching platforms, no extra steps.

All in One CATO Alternative

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, we ensure your filings are accurate and compliant, designed specifically around CT600 and iXBRL accounts filing for micro and small businesses.

No More Filing Headaches

With intuitive workflows, built-in validations, and dedicated UK-based support, our platform takes the stress out of compliance giving you confidence that your Company Tax Return is formatted and validated correctly by HMRC

STEPS

Getting Started On Our Software
Never Been Simpler

1

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

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Google Reviews

2

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

3

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

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Google Reviews

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.

Get started
What’s INCLUDED

Everything you need in one filing service

  • Joint filing of annual accounts and corporation tax return
  • Companies House and HMRC submission
  • Secure online filing process
  • Error reduction checks
  • Fast digital submission
Who Needs This Service?

Companies that must complete annual filings

Companies Required to Submit a Confirmation Statement

  • UK limited companies
  • Dormant companies
  • Small businesses and startups
  • Companies approaching their filing deadline
  • Businesses wanting a faster compliance pr
  • Companies required to file annual accounts and a confirmation statement with Companies House
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Every registered company must file a confirmation statement at least once every 12 months, even if no company details have changed.
Trusted & Recognised

HMRC recognised software provider

Registered HMRC Agent

We’re a registered HMRC agent and supervised for Anti-Money Laundering. This means our business processes, and the people behind them, meet strict HMRC standards.

Approved Software Provider

We’re an approved software provider and presenter for Companies House, so you and your accounts are in expert hands.

FAQ

Your Joint Filing questions answered

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 — the same company accounts and tax online filing convenience CATO offered.
Yes, we accommodate non-trading and dormant company filings as required by Companies House.
No, our cloud platform is designed to be used independently of other commercial accounting software for small businesses, with our easy-to-use templates
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.
Yes, we're on HMRC's approved software list for corporation tax filing, so you can file your CT600 with confidence that it meets HMRC's required technical standards.
Why easy Digital Filing?

No complicated downloads, just simple online tools built for business owners.

Intuitive & Guided

Step-by-step forms make entering your figures straightforward — you don’t need accounting experience.

Direct Submission

Once ready, file straight to HMRC (and Companies House if accounts are included) with one click — and download your official receipts immediately.

Instant Tax Calculations

Your Corporation Tax liability is calculated as you enter your information — so you always know what you owe (or what refund you might receive).

Ready to Use Our Joint Filing Service?

Get started today with our secure online platform — and file your Joint Filing the quick and compliant way.

Knowledge base

Learn more about CATO