TaxCalc helps you prepare and file your CT600 clearly and accurately, with step-by-step support, built-in calculations and tools that make Corporation Tax less complicated.
TaxCalc helps you prepare and file your CT600 clearly and accurately, with step-by-step support, built-in calculations and tools that make Corporation Tax less complicated.

Preparing a Corporation Tax return can feel complex. TaxCalc gives you a clearer route through the process, helping you complete your CT600 with more confidence.
Choose how you complete your return. Follow guided, step-by-step questions to keep things simple, or switch to HMRC-style forms if you prefer working directly on the return.
Built-in calculations, wizards and worksheets help you enter the right information and ensure your Corporation Tax is calculated accurately as you go.
Prepare your company’s Corporation Tax return alongside returns for directors and family members, with all the necessary forms and supplementary pages included.
With TaxCalc Limited Company, you can:
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MTD Quarterly Filer guides you through the process of importing your records and turning them into HMRC compliant quarterly submissions.
Choose guided step-by-step completion or HMRC-style forms
Move quickly through your return with structured workflows
Focus only on the sections relevant to your company
Switch between views depending on how you prefer to work
Includes all supplementary pages, including non-residence and complex income
Built-in wizards for areas like expenses, capital gains and benefits
Handles a wide range of personal circumstances and income types
Automatically selects the correct versions of forms
Reduce errors and automatically create the standard periods by retrieving MTD for IT obligations directly from HMRC (as required by MTD).
You can customise TaxCalc with a range of add-ons, giving you extra tools when you need them. Choose one or more modules to support more specific tax situations or simplify particular tasks.
If you have one or more Trusts and need to file SA900 Trust tax returns, this add-on provides you with the form for easy on-screen completion and online filing. Income received from Trusts can be imported directly into SA100 Individual tax returns.
Use your 2025-26 tax return data to project your tax liability for the 2026-27 tax year. You can also create scenarios, adjusting your levels of income or to see the effects of decisions being made now on next year’s tax bill.
Applies to SA100 tax returns only.
The add-on is released in June each year to include changes announced for the next tax year.
Simplify the entry of dividend data with this database of FTSE 350 and AIM 100 listed dividend data for the 2025-26 tax year.
Bring forward your shareholdings from your 2024-25 tax return and TaxCalc Dividend Database will do the rest.
The database is released in June each year to include dividends paid up to the end of the previous tax year.
Practical guidance and updates.
Find answers to questions you may have about TaxCalc VAT Filer.
Yes, accounts need to be prepared in the appropriate iXBRL format, but TaxCalc allows you to attach accounts produced either with an external package or with TaxCalc Accounts Production.
Yes. TaxCalc's software works with Windows, Apple Macs and Linux operating systems. For a full compatibility list please see the System Requirements for TaxCalc.
TaxCalc is an annual purchase because we have to redevelop it each year to new rates and tax rules. Your licence is perpetual and will continue to provide future access to unused returns for purchased tax years.
Since TaxCalc is an all-in-one application, when you buy next year's licence, all you need to do is open TaxCalc and it will update itself to add in the 2025-26 forms.
Yes. TaxCalc Limited Company can be upgraded with additional Individual, Partnership, Corporation Tax and Trust forms.
To discuss your requirements, please call us on 0345 5190 883 or email sales@taxcalc.com.
Yes. We supply tax software dating back to the 2014-15 tax year. You can find this on the Versions and Prices page.
For your convenience, TaxCalc Limited Company may be installed on up to two computers.
TaxCalc Limited Company gives you a practical, structured way to prepare and file your company tax return accurately.