Expert Corporation Tax Services for UK Limited Companies
Need help with your corporation tax? Our chartered accountants handle everything from CT600 filing and HMRC compliance to strategic tax planning. We help you pay the right amount, on time, every time.
Take Control of Your Corporation Tax
Corporation tax applies to every UK limited company on its taxable profits. Getting it right means more than just filing a return. It means understanding which reliefs apply, how to structure expenses, and when payments are due. At ABM, we manage every aspect of your corporation tax obligations.
Whether your company earns under the small profits threshold or manages complex group structures, our chartered accountants make sure your tax position is accurate and optimised. We handle the detail so you can focus on running your business without worrying about HMRC deadlines or missed reliefs.
Explore Our Full Corporation Tax Services
From preparing and filing your CT600 to identifying every available relief, here is how our chartered accountants help you stay compliant and reduce your tax liability.
Tax Returns
Accurate CT600 preparation and filing with HMRC, ensuring full compliance before every deadline.
Tax Planning
Strategic tax planning to reduce your corporation tax liability and keep more of your profits.
Capital Allowances
Maximise relief on qualifying assets including plant, machinery, and equipment through allowances.
R&D Tax Credits
Identify qualifying projects and claim research and development tax relief to cut your tax bill.
Group Relief
Offset losses across group companies to reduce the overall corporation tax burden on your business.
HMRC Compliance
Stay fully compliant with HMRC corporation tax rules, deadlines, and reporting requirements.
Real Benefits of Expert Corporation Tax Support
Corporation tax is one of the biggest costs a UK company faces each year. Without proper planning, you could be paying more than you need to. Our chartered accountants identify every legitimate relief, from capital allowances to R&D credits, so your business keeps more of what it earns.
Beyond saving money, we protect you from penalties by making sure every filing is accurate and submitted well before the deadline. You get a dedicated accountant who monitors key dates, flags risks early, and gives you the confidence that your tax position is always as strong as possible.
Trusted by Limited Companies Right Across the UK
Based in Canary Wharf, London, we provide corporation tax services to limited companies right across the UK. Our cloud-based systems make it easy to work together from anywhere.
London
Chartered accountants in London for all businesses.
Birmingham
Accounting in Birmingham for local businesses.
Leeds
Glasgow
Professional accountants based in Glasgow.
Manchester
Trusted accounting firm in Manchester.
Edinburgh
Tax and accounting experts in Edinburgh.
Liverpool
Dedicated accountants for Liverpool businesses.
Bristol
Reliable accounting services across Bristol.
Belfast
Trusted accounting specialists based in Belfast.
Cardiff
Reliable accountants serving businesses in Cardiff.
Milton Keynes
Professional accounting support in Milton Keynes.
Canary Wharf
Expert accounting services in Canary Wharf.
Specialist Tax Support for Your Industry
We work with limited companies in construction, healthcare, retail, hospitality, property, e-commerce, technology, and professional services. Every sector has unique tax considerations, and our team understands how to make the most of them.
Why Clients Trust Us With Corporation Tax
Chartered Specialists
ICAEW and ACCA qualified with deep UK corporate tax expertise.
Proactive Tax Savings
We find reliefs and allowances most businesses miss entirely.
Deadline Confidence
Every return filed accurately and on time, with no last-minute stress.
How We Work
Initial Consultation
Set Up and Onboard
Ongoing Support
We provide regular reviews and proactive advice to keep your finances optimised and HMRC-compliant.
Get in Touch Today
Whether you need help with your tax return, payroll, VAT, or business advisory, our qualified UK accountants are ready to provide clear, practical guidance for your specific needs.
Book a Consultation
Fill in the form below and one of our expert accountants will contact you promptly to discuss your accounting and tax requirements.
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Frequently Asked Questions
Here are answers to the most common corporation tax questions we receive. Get in touch if you need more detail.
What is corporation tax in the UK?
Corporation tax is a tax on the profits of UK limited companies. The main rate is 25% for profits above 250,000 pounds and 19% for profits under 50,000 pounds, with marginal relief in between.
When do I need to file my corporation tax return?
Your CT600 must be filed with HMRC within 12 months of your accounting period ending. Payment is due nine months and one day after the period ends. Late filing leads to penalties.
How can I reduce my corporation tax bill?
You can lower your liability by claiming allowable business expenses, capital allowances, R&D tax credits, pension contributions, and group relief. A chartered accountant helps you identify every available reduction.
Do small companies pay a lower rate?
Yes. Companies with profits under 50,000 pounds pay corporation tax at 19%. For profits between 50,000 and 250,000 pounds, marginal relief applies, resulting in an effective rate between 19% and 25%.
What happens if I pay corporation tax late?
HMRC charges interest from the day after the deadline passes. Further delays can lead to additional penalties. Filing your CT600 late also results in fixed fines that increase over time.
Can you help with an HMRC tax investigation?
Yes. Our chartered accountants provide full support during HMRC enquiries, including gathering records, handling all correspondence, and working to resolve the investigation quickly while protecting your position throughout.