Corporation Tax Accountants in Bristol & Across the UK
Accurate Corporation Tax returns and proactive advice that keep you compliant and paying no more than you owe.
How we help with corporation tax
We prepare and submit your Corporation Tax return (CT600), calculating your liability clearly and accurately and making sure every allowable deduction is claimed.
We keep you on top of payment deadlines, liaise with HMRC where needed, and offer proactive advice as your business changes so there are no year-end surprises.
What's included
- Preparing and submitting Corporation Tax returns (CT600)
- Calculating Corporation Tax liabilities clearly and accurately
- Advising on Corporation Tax payment deadlines
- Reviewing profits and allowable deductions
- Liaising with HMRC where required
- Proactive advice as your business changes
How Corporation Tax works
Limited companies pay Corporation Tax on their taxable profits. For the financial year starting 1 April 2026, the small profits rate of 19% applies to profits of £50,000 or less, and the main rate of 25% applies to profits over £250,000. Between those limits, the company pays the main rate reduced by marginal relief, so its effective rate rises gradually from 19% to 25%.
The £50,000 and £250,000 limits are reduced if your accounting period is shorter than 12 months, and divided between associated companies, so a group of companies can reach the higher rates sooner than you might expect. Our guide to understanding your Corporation Tax bill explains how it's worked out.
Corporation Tax deadlines
- Pay your Corporation Tax 9 months and 1 day after the end of your accounting period
- File your Company Tax Return (CT600) 12 months after the end of your accounting period
- File your statutory accounts at Companies House 9 months after your financial year end
The payment deadline comes before the filing deadline, which catches many directors out. Knowing your figure early, and setting money aside through the year, avoids a cash flow shock.
Paying the right amount, and no more
Your Corporation Tax is only as accurate as the accounts behind it. We review your profits and allowable deductions so that everything you're entitled to claim is claimed. That includes capital allowances on equipment and vehicles: depreciation in your accounts isn't tax-deductible, so claiming the right allowances matters.
How you take money out of the company affects the bill too. A director's salary is an allowable expense for Corporation Tax, while dividends are paid from profits after tax, which is why the mix of salary and dividends is worth planning each year.
Your responsibilities as a director
As a director, you're responsible for making sure your company's accounts and tax returns are filed on time, even when an accountant prepares them. Our guide to limited company director duties sets out the essentials, including the rules on director's loans: if money you owe the company isn't repaid within 9 months of the end of the accounting period, the company pays an extra 33.75% Corporation Tax charge on the amount outstanding.
Corporation Tax support in Bristol and across the UK
We prepare and submit Corporation Tax returns for limited companies across north Bristol, South Gloucestershire, North Somerset and the rest of the UK, and liaise with HMRC where needed. Corporation Tax is included in our Limited Company plan, from £150 a month (exc VAT), alongside your statutory accounts, confirmation statement, monthly bookkeeping, the director's Self Assessment and proactive tax planning reviews.
Corporation Tax: common questions
For the financial year starting 1 April 2026, the small profits rate is 19% for profits of £50,000 or less and the main rate is 25% for profits over £250,000, with marginal relief for profits in between.
Corporation Tax is due 9 months and 1 day after the end of your accounting period, and the Company Tax Return is due 12 months after it. The tax is payable before the return is due.
If your company's taxable profits are between £50,000 and £250,000, marginal relief reduces the 25% main rate so that the effective rate rises gradually from 19%. The limits are reduced for short accounting periods and divided between associated companies.
Yes. Liaising with HMRC where required is part of our Corporation Tax service, along with preparing and submitting your CT600 return and advising on your payment deadlines.
Related guides
- Year-End Accounts Explained: What Happens and What Your Accountant NeedsCompliance
- Limited Company Directors: Your Accounts, Tax and Filing DutiesCompliance
- Salary or Dividends? How to Pay Yourself From a Limited Company in 2026/27Tax
- Depreciation Explained: What It Means for Your Accounts and Your TaxBookkeeping
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Let's talk about corporation tax
Get in touch with LN Accountants today. Our team is ready to help with expert, one-to-one support tailored to your business.
