💼 Corporation Tax Services in the UK
At CoreAdviz Accountants, we help UK companies stay compliant with HMRC Corporation Tax rules while ensuring they don’t pay a penny more than necessary. Whether you’re a startup, SME, or overseas entrepreneur, our tailored advice ensures efficient tax planning and accurate filing.
🏢 What Is Corporation Tax?
Corporation Tax is a tax on the profits of UK limited companies, covering trading profits, investment income, and chargeable gains. Every company—whether active, dormant, or newly incorporated—must assess its tax position each year and submit a CT600 return to HMRC. At CoreAdviz, we ensure your tax calculations are accurate, compliant, and fully optimised so you never pay more than required.
📋 What We Offer
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Corporation Tax Compliance
- Preparation & submission of CT600 returns
- Calculation of corporation tax liability
- Filing with HMRC on time
-
Tax Planning & Reliefs
- R&D Tax Credits
- Capital Allowances (including AIA)
- Group Relief / Loss Relief planning
-
Advisory Support
- Director salary vs dividend optimisation
- Overseas income & Double Taxation Agreement support 🌍
- Business restructuring & tax-efficient acquisitions
💡 Annotation: We identify allowable expenses, reliefs, and deductions to reduce taxable profits and improve cash flow.
📊 Key Corporation Tax Facts (UK)
| Item | 2025 Rate / Rule | Notes |
|---|---|---|
| Standard Corporation Tax Rate | 25% | Applies to profits > £250,000 |
| Small Profits Rate | 19% | Profits ≤ £50,000 |
| Marginal Relief | Tapered | Between £50,001 – £250,000 |
| Filing Deadline | 12 months | After end of accounting period |
| Payment Deadline | 9 months + 1 day | After end of accounting period |
📈 Why Choose CoreAdviz?
| Category | Client Rating (out of 5) | Annotation |
|---|---|---|
| Tax Compliance | 4.9 | 100% on-time filing record |
| Tax Planning | 4.8 | Clients often save via allowances/reliefs |
| Client Support | 4.7 | Dedicated accountant for your company |
| Value for Money | 4.8 | Affordable SME-focused packages |
🔗 Useful Resources
❓ Frequently Asked Questions (FAQ)
1. When does my company need to file a Corporation Tax return?
Every UK limited company must file a CT600 return within 12 months of the end of its accounting period, even if it made no profit.
2. When do I need to pay Corporation Tax?
Corporation Tax must be paid 9 months and 1 day after the end of your accounting period.
Annotation: Late payment results in interest charges by HMRC.
3. What expenses can my company claim?
You can claim expenses that are “wholly and exclusively” for business use, such as:
- Staff wages
- Rent & utilities
- Equipment purchases
- Accountancy fees
- Advertising & marketing
4. Do startups pay Corporation Tax?
Yes — all incorporated companies must pay Corporation Tax on their profits, even in the first year.
5. What is Marginal Relief?
Marginal Relief reduces the effective tax rate for companies with profits between £50,001 and £250,000, giving a gradual increase from the small profits rate (19%) to the main rate (25%).
6. Can I reduce Corporation Tax legally?
Absolutely — common strategies include:
- Claiming Capital Allowances
- R&D Tax Credits
- Salary/dividend planning
- Claiming business expenses correctly
- Using losses carried forward
💡 Annotation: CoreAdviz reviews your
