Corporation Tax
Prepared, reviewed and submitted.
Corporation Tax Accountants For UK Businesses
Stay compliant, understand your Corporation Tax position and plan ahead with professional support from Accounting People.
Our Corporation Tax accountants help UK companies calculate tax liabilities, review allowable expenses and reliefs, assess Marginal Relief and associated-company issues, plan future liabilities and provide practical support with Corporation Tax matters and HMRC.
- ACCA-qualified support
- Proactive tax planning
- Fixed Fee
Complete Corporation Tax Support For Your Business
From calculating your Corporation Tax liability and reviewing available reliefs to planning ahead for future payments, we help you understand and manage your Corporation Tax position with practical support tailored to your business.
Corporation Tax Calculations
Accurate calculations based on your company profits, allowable expenses and relevant reliefs.
Corporation Tax Forecasting
We help you estimate upcoming Corporation Tax liabilities so you can plan cash flow and avoid unexpected tax bills.
Corporation Tax Planning
Practical tax planning to help you understand upcoming liabilities and identify legitimate planning opportunities.
Marginal Relief
Support where company profits fall within the Marginal Relief thresholds or where associated companies may affect them.
Allowances & Tax Reliefs
Review of allowable business expenses, capital allowances, losses and other relevant Corporation Tax reliefs.
HMRC Corporation Tax Support
Where authorised, we can assist with Corporation Tax queries, notices and communication with HMRC.
Corporation Tax Support For Different Types of Businesses
Limited Companies
Corporation Tax calculations, tax planning, reliefs and ongoing support for owner-managed companies. We can also support CT600 preparation and filing through our Company Tax Return service.
Growing Businesses
Planning support as profits increase, including Marginal Relief, associated companies and future tax liabilities.
Start-ups
Help understanding Corporation Tax registration, first accounts, filing requirements and available expenses.
Established SMEs
Ongoing Corporation Tax planning, allowances, reliefs and support alongside annual accounts.
Why choose Accounting People?
Corporation Tax Expertise You Can Rely On
- Experienced Corporation Tax accountants
- Proactive advice before important deadlines
- Support for limited companies and growing businesses
- Clear fees and service scope
- Corporation Tax support connected with your annual accounts
- Responsive UK-based support
Corporation Tax should not become something you only think about when the payment deadline arrives. We help you understand your tax position earlier, plan for liabilities and keep your company compliant.
Need Help With Your Corporation Tax?
Whether you need help understanding your Corporation Tax liability, reviewing reliefs and allowances, planning ahead or dealing with HMRC, Accounting People can provide practical support tailored to your business.
If you need support specifically with CT600 preparation and filing, see our Company Tax Return services.
Frequently Asked Questions
A Corporation Tax accountant can help you understand your company’s tax position, calculate Corporation Tax liabilities, review allowable expenses and relevant reliefs, plan for future payments and provide support with Corporation Tax matters and HMRC.
For companies with taxable profits up to £1.5 million, Corporation Tax is normally due 9 months and 1 day after the end of the accounting period.
For the financial year beginning 1 April 2026, the main Corporation Tax rate is 25% for companies with profits above £250,000. The small profits rate is 19% for profits of £50,000 or less. Marginal Relief may apply where profits fall between £50,000 and £250,000. These thresholds can be reduced for short accounting periods and where a company has associated companies.
It can be useful to speak to a Corporation Tax accountant when your profits are changing, you are unsure which reliefs or allowances may apply, you want to plan for future tax liabilities, or you need support dealing with Corporation Tax matters or HMRC.
We can review your company’s circumstances, allowable expenses, capital expenditure, available reliefs and other legitimate tax-planning opportunities. Any recommendation will depend on your individual business circumstances.
Marginal Relief can reduce the effective Corporation Tax rate for qualifying companies with profits between the small profits and main-rate thresholds.
Yes. Corporation Tax calculations are closely connected with your company’s annual accounts, so we can support both as part of your agreed service.
Where appropriate authorisation is in place, our team can communicate with HMRC regarding Corporation Tax matters on your company’s behalf.
Yes. If you already have an accountant, we can explain the process of switching and request the necessary professional information once you appoint Accounting People.