The HMRC filing service is closing.
We are open.

The government is closing the online service for filing your company accounts and corporation tax return. We provide the simple, reliable software you need to stay compliant.You can count on us.

Gov.uk Notice

"Closure of the service to file your company accounts"

HMRC is removing the free CATO (Company Accounts and Tax Online) filing option. This affects thousands of small businesses and micro-entities who rely on this simple tool.

"You will need to use commercial software to file your accounts and tax returns..."

Seamless transition for
Micro-entities.

You didn't ask for this change, but we are here to make it invisible. Accountable duplicates the simplicity of the government service you are used to, but adds modern security and speed.

  • Direct integration with Companies House
  • CT600 Corporation Tax filing included
  • No accounting jargon, just simple forms
  • Bank-grade security for your financial data
FAQ Assistant

Confused by the changes?

Get instant answers about the HMRC CATO service closure on 31 March 2026 and what it means for your business.

Quick Facts:

  • CATO closes permanently on 31 March 2026
  • Download your last 3 years of returns before the deadline
  • Commercial software required from 1 April 2026
  • No need to notify HMRC when you switch to software

Optimised for what matters

We stripped away the features you'll never use and perfected the ones you do: filing your accounts and returns, smoothly

Core Feature

Combined Filing

Submit to Companies House and HMRC simultaneously. One form, two destinations. No duplicating data entry.

Companies House
HMRC

Instant Validation

Real-time HMRC rule checking as you type, preventing rejection errors.

100%

Micro-entity Ready

Specifically designed for FRS 105. Perfect for contractors and holding companies.

Secure & Private

Bank-grade encryption. We never sell your financial data.

Auto-Calculations

Enter your raw figures—we calculate the tax liability automatically.

Complete Audit Trail

Keep a permanent, downloadable record of every submission. Full transparency for your records and accountant.

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