Our free to use Corporation Tax Calculator works out your CT liability including any reliefs, tax credits and capital allowances ahead of time, allowing you to download and save your progress for later.
Use our Corporation Tax calculator to work out your company's CT liability for any accounting period after April 2015 and get a detailed tax breakdown, accurate to the penny for filing Corporation Tax to HMRC.
You can also add reliefs and allowances to your calculations such as marginal relief for Corporation Tax, Research and Development* Tax credits, and Capital Allowances.
If you want to calculate R&D Tax credits or Company profits tax reduction, click on Return Information in the Return Sections Menu and toggle box 40 to YES to add tax reliefs.
File with confidence. Using our guided process, complete your CT600 and iXBRL accounts and file directly to HMRC and Companies House
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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.
We’re an approved software provider and presenter for Companies House, so you and your accounts are in expert hands.
Step-by-step forms make entering your figures straightforward — you don’t need accounting experience.
Once ready, file straight to HMRC (and Companies House if accounts are included) with one click — and download your official receipts immediately.
Your Corporation Tax liability is calculated as you enter your information — so you always know what you owe (or what refund you might receive).
The Tax Calculation menu shown is only a sample section from our user friendly CT600 software, designed to save your company time and money by offering a one stop solution for filing your taxes online.