Corporation Tax
Every UK limited company needs to calculate and pay Corporation Tax on its profits, and file a return with HMRC. A professional can help make sure your calculation is accurate and any reliefs you're entitled to are considered.
The headline rate is only part of the picture — reliefs, allowances and how expenses are treated can all affect what your company actually owes. This is particularly relevant if your company has invested in equipment or research, or has had a loss-making year, since each of these can change your position significantly.
At a glance
- Best for: limited companies preparing their corporation tax return
- Common reason: preparing and filing a corporation tax return
- Free to use, with no obligation to proceed

Who this is for
- Limited companies preparing their Corporation Tax return
- Businesses wanting to understand available reliefs and allowances
- Companies with a first Corporation Tax return due
- Businesses that have had a change in profit or structure
Common reasons people get in touch
- Preparing and filing a Corporation Tax return
- Understanding what expenses and reliefs can reduce a tax bill
- Planning ahead for a known Corporation Tax liability
- A first return being due after company formation
What this typically involves
- 1Calculation of your company's Corporation Tax liability based on its accounts
- 2A review of reliefs and allowances your company may be entitled to
- 3Preparation and filing of your CT600 return with HMRC
- 4Guidance on when payment is due and how much to set aside
Questions worth asking
A few things worth raising once you’re speaking with a professional.
- Are there any reliefs or allowances I might be missing?
- How is my Corporation Tax bill affected if the company made a loss?
- When exactly is my payment due, and how is that date worked out?
- Can you help me plan ahead for next year's liability?
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FAQs
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