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M A AccountingChartered Certified Accountants
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Corporation Tax Services for UK Limited Companies

Accurate, compliant and stress-free corporation tax returns for small businesses. We handle CT600 filing, tax planning and HMRC compliance so you keep more profit and stay penalty-free.

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Accountant preparing a Corporation Tax return (CT600) for a UK limited company

As Chartered Certified Accountants, we help UK limited companies meet their corporation tax obligations with complete confidence. From year-end accounts and CT600 filing to tax planning and director support, we ensure your business stays fully compliant with HMRC while legally reducing your tax bill wherever possible.

Not trading right now?

If your company has paused trading or has no transactions this year, it may qualify as dormant. Learn how to stay compliant with simplified filings for Companies House and HMRC.

Read: Dormant Company Accounts Explained

Corporation Tax FAQs

Corporation Tax is charged on company profits. UK limited companies and certain organisations must calculate their taxable profit and file a CT600 return each year.
The CT600 is your company’s annual Corporation Tax return sent to HMRC, showing profits, reliefs and the tax payable.
Payment is due nine months and one day after the company year-end; the CT600 must be filed within twelve months of the year-end.
The main rate is 25%. Companies with smaller profits may qualify for marginal relief, giving a lower effective rate.
Yes, by claiming allowable expenses, capital allowances, and other reliefs such as R&D or Annual Investment Allowance. We review these for you.
While you can file yourself, most directors use accountants to ensure accuracy, compliance and the best tax-saving claims.
HMRC imposes penalties for late filing and interest for late payment. Persistent delays may trigger compliance checks.
We prepare your statutory accounts, calculate Corporation Tax, submit CT600s, correspond with HMRC, and plan to minimise your tax, all for a clear fixed fee.

Get in touch. We’re here to help your business succeed

Speak to an ACCA-qualified accountant in Oxford. Free initial consultation, fixed fees, no jargon.

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We’re available 8:30am–7:00pm Monday to Friday and 9:00am–6:00pm on Saturdays. Our offices are closed on Sundays.

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