File your own Company Tax Return

No Accountant or Agent ID required

All you need to file Direct to HMRC

File successfully or a Full Refund

Corporation Tax CT600 software
(with IXBRL)

HMRC approved Corporation Tax CT600 software designed for Small UK Business (Small & Micro Limited Companies). Online software enables creation and filing of Company Corporation Tax to HMRC, with instant Corporation Tax calculation & computations and fully tagged IXBRL Company Final Accounts. Once ready file directly online through to HMRC and Companies House.

Simple to use forms guide you step by step to complete your CT600 Corporation Tax return. Also provided are easy templates to create your fully IXBRL compliant Company Accounts (templates built specifically for Small & Micro companies required by HMRC), in the same easy to follow format. If you already have your IXBRL Accounts from another source, simply upload and we will submit to HMRC with your CT600. Our platform calculates your corporation tax liability as you complete your return, it's that easy.

Like 1000's of people who have filed with us successfully we are confident that you will find our software intuitive and simple. You only pay when you are ready to submit, so try for free before you commit.

How does it work?

Create an Account, then using our QuickStart wizard find Company, & select the your filings. There is nothing to install, it's fully online!
Complete your Corporation Tax CT600 return, and IXBRL Company Accounts. Use our knowledge base or online chat if you need help.
Review your filings using the online viewer, enter your HMRC Gateway credentials and if filing with Companies House, authorisation code, and click for instant submission.
The important part - sit back and relax (well, for another year anyway!). We email you the digital receipt returned by HMRC.

An online platform to make Filing easy

Company CT600 Corporation Tax online filing template

Easy to use templates
to guide you

Tax liability calculated as you go.

What is a CT600 return?

Company IXBRL CT600 Accounts Templates

Creates IXBRL Tagged
Company Accounts

Templates designed for both small and micro companies.

Create IXBRL Limited Company Accounts

CT600 and Companies House Online filing software

Direct Submission to HMRC
& Companies House

All within the one platform, simple, quick, easy.

How to File a CT600 Online

Simple Company Tax Filing keeping you in control
Providing you with a one stop solution to   Calculate your Company Corporation Tax , create the required IXBRL Accounts and direct online submission to HMRC and Companies House(if required)
All you need are your end of year figures and your HMRC Gateway and Companies Ho Accounts.
Find out Corporation Tax Liability at a click
Corporation Tax calculation  engine calculates exact CT liability as you input data. Want to see the effect in moving a Loss back to a previous year or maybe how R&D Tax credits could effect your bottom line - You can do this at the click of a button.

"How to" articles to help you

How To file a CT600

How To file a CT600 online

Step by Step guide for how to make a Corporation CT600 Tax Filing.

How to create Micro IXBRL accounts

How to create IXBRL Company Accounts

Templates designed for both small and micro companies.

Extended accounting period how to file a CT600

Extended year Company tax filing

Where your accounting period is greater than 12 months.

and what some of our 1000's of customers have said
declaration Linda Everett
Corporation Tax return
At last a service that allows me to file a Corporation Tax return with the IXBRL accounts easily.
declaration Rasheed Shah
Very happy
just wanted to say how happy I am with your software. I created an account and managed to file to HMRC and Companies house in under an hour. Have tried other online solutions, but no others come any where close in terms of ease of use
declaration Mary Rackham
Small Company IXBRL Accounts
Filed for a small company so the accounts were more complex than Micro. The simple and intuitive input forms for the CT600 and accounts guided me through the process. Normally its an end of year task I dread, now I have found you not any longer!
declaration Peter Jeffery
Support was fantastic
The support you provided me with was fantastic, I found the online chat especially useful and so responsive. I don't know who I was chatting to but they were patient and explained exactly what I needed to do
declaration Ansgar Pereira
See you next year
Superb application, the nice bit is I did not need to install anything and could access it anywhere. Support was really good. See you next year
declaration Umar Kadhim
Have tried so many packages to file a CT600, some cheaper and some a bit more expensive - this one is by a long way the best, and worth the price, for both the time it saves and the support you get