If you run a limited company in the UK, Corporation Tax is not optional. It is part of the deal. In simple terms, Corporation Tax for a limited company is the tax you pay on your company’s profits. As of now, most limited companies pay between 19 percent and 25 percent, depending on how much profit they make. Smaller companies pay less. Bigger profits mean a higher rate.
So, how much is Corporation Tax for Ltd company really? If your profits are low, you will pay 19 percent. If they are high, you will pay 25 percent. If you sit somewhere in the middle, your rate slides between the two.
This guide explains exactly how the Corporation Tax for an Ltd company works. Here, you’ll get to know:
- Do limited companies pay corporation tax?
- How much is corporation tax for a limited company?
- How is corporation tax calculated for a limited company?
- And much more…
Let’s get into it!
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What Is Corporation Tax for a Limited Company?
Corporation Tax for a limited company is the tax charged on the profits your company makes during its accounting year. Profits usually come from trading, but they can also come from investments or selling assets.
Once your company earns money and deducts its allowable business expenses, whatever is left is taxable profit. That is the figure on which Corporation Tax is based.
This tax is paid by the company itself, not by you personally. That matters because it separates company tax from personal income tax.
Who Must Pay Corporation Tax in the UK?
If you run a limited company in the UK, you’ll need to pay Corporation Tax on your profits. This requirement to pay Corporation Tax for a Limited company applies whether you’re a small business, a large company, or even a foreign company that operates in the UK. Some clubs and associations also have to pay, depending on their income and structure.
This tax doesn’t apply to sole traders or partnerships, who have their own separate tax obligations. If you’re uncertain, it’s always worth checking with a professional.
Do Limited Companies Pay Corporation Tax?
Yes, but only on the profit that remains after you take away your running costs. Unlike a person who has a tax-free Personal Allowance, a company starts paying tax from the very first pound of profit it makes.
This applies to all “limited” entities, which is why people often ask if limited companies pay corporation tax on money they haven’t moved out of the business bank account yet. The answer is yes.
Even if you leave the money in the business to spend next year, HMRC still wants its share based on the profit you recorded for the current financial year.
How Much is Corporation Tax for a Limited Company?
As of now, the rates are set to remain steady through 2026 and into 2027. The government has kept the tiered system that was introduced a few years back. When calculating Corporation Tax for a Limited company, here is a quick look at what you can expect to pay based on your annual profits:
| Profit Level | Tax Rate | What it’s called |
| £0 to £50,000 | 19% | Small Profits Rate |
| £50,001 to £250,000 | 19% – 25% | Marginal Relief (effective 26.5%) |
| Over £250,000 | 25% | Main Rate |
If your business is what HMRC calls a “Close Investment Holding Company” (basically a company that just holds investments rather than trading), you usually have to pay the full 25% regardless of how small your profit is.
Example Calculations
- Company A (small business): £30,000 profit, 19% tax rate, £5,700 tax liability
- Company B (medium-sized business): £150,000 profit, Marginal Relief applies, £29,250 tax liability
- Company C (large business): £500,000 profit, 25% tax rate, £125,000 tax liability
Consider the following in this regard.
- Accounting period: 12 months
- Payment deadlines: 9 months and 1 day after accounting period end
- Filing deadlines: 12 months after the accounting period end
Staying Informed
- Consult HMRC or a tax professional for up-to-date information
- Review tax returns and payments regularly
- Plan for tax efficiency and minimise liability
Impact on Limited Companies
- Small businesses: benefit from lower tax rate
- Medium-sized businesses may benefit from Marginal Relief
- Large businesses: subject to the higher tax rate
How Do “Associated Companies” Affect Your Taxes?
This is a trap that many business owners miss. If you run more than one company, HMRC views them as “associated.” When this happens, the £50,000 and £250,000 thresholds are split between them.
For example, if you own two companies, your 19% tax bracket drops to just £25,000 for each business. This is a vital detail to remember when figuring out the Corporation Tax for a Limited company if you like starting multiple side projects under different company names.
How is Corporation Tax Calculated for a Limited Company?
The process is fairly logical but requires good record-keeping. You start with your total turnover (the money coming in) and subtract your business expenses (the money going out on things like staff, rent, and software).
Once you have that profit figure, you apply the relevant percentage. Let’s look at a few common scenarios for a UK limited company in 2026.
Example 1: The Small Business (Profit of £40,000)
Since the profit is under the £50,000 threshold, this company qualifies for the Small Profits Rate.
- Total Profit: £40,000
- Tax Rate: 19%
- Calculation: £40,000 x 0.19
- Tax Bill:£7,600
Example 2: The “In-Between” Business (Profit of £100,000)
This falls into the Marginal Relief zone (between £50k and £250k). HMRC calculates this by starting at the 25% rate and then applying a “fraction” discount to smooth the jump.
- Total Profit: £100,000
- Step 1 (Main Rate): £100,000 x 25% = £25,000
- Step 2 (The Discount): For 2026, the Marginal Relief fraction is 3/200. The formula is: (Upper Limit − Profit) x Fraction.
- The Math: (£250,000 – £100,000) x 3/200 = £2,250
- Final Bill: £25,000 – £2,250 = £22,750
Note: This makes your effective tax rate 22.75%.
Example 3: The Large Business (Profit of £300,000)
Because the profit is over £250,000, the calculation is a flat percentage with no relief.
- Total Profit: £300,000
- Tax Rate: 25% (Main Rate)
- Calculation: £300,000 x 0.25
- Tax Bill: £75,000
Example 4: The “Associated Company” Rule (Profit of £40,000)
Imagine you own two separate limited companies. HMRC divides your thresholds by two. Your 19% tax bracket now only goes up to £25,000 instead of £50,000.
- Total Profit: £40,000
- First £25,000: Taxed at 19% = £4,750
- Remaining £15,000: Taxed at the “Marginal” rate (effectively ~26.5%) = £3,975
- Total Bill: £8,725
Compared to Example 1, owning a second company has increased your tax bill by over £1,100 on the exact same profit.
Are There Ways To Lower The Bill For a Corporation Tax For Limited Company UK?
You should never pay more than you legally owe. There are several ways to reduce your taxable profit:
- Director Pensions: Payments made directly from your business into your pension are usually treated as a business expense. This reduces your profit and your tax bill at the same time.
- Capital Allowances: If you buy a new laptop, a van, or office furniture, you can often deduct the full cost from your profits before tax is calculated.
- Work from home costs: If you run your business from a home office, you can claim a portion of your utility bills.
How To Register a Limited Company For Corporation Tax?
In 2026, you can set up a limited company and register for Corporation Tax in one single online process through the government’s official portal.
1. Register with Companies House (Incorporation)
To establish your company as a legal entity, you must register it with Companies House. This is called incorporation.
- Quickest Method: Use the GOV.UK “Set up a limited company” service.
- Costs (as of Feb 2026):
- Digital Filing: £100.
- Postal Filing: £124.
- Timeframe: Online applications are typically processed within 24 hours.
2. Register for Corporation Tax
When you use the online incorporation service, you will usually be registered for Corporation Tax at the same time.
- If you didn’t register during setup: You must register separately within 3 months of starting business activities (e.g., buying, selling, or advertising).
- Unique Taxpayer Reference (UTR): After incorporation, HMRC will post a 10-digit UTR to your registered company address, usually within 14 days. You need this to manage your taxes online.
- Accounting Period: You must tell HMRC the date you started trading; this defines your first “accounting period” for tax purposes.
3. What Information Will You Need
Before starting, ensure you have the following details ready:
- Company Name: Check that it is unique using the Companies House name checker.
- Official Address: A physical UK address where official mail can be delivered.
- Director(s) & Shareholders: Names, dates of birth, and addresses.
- SIC Code: A 5-digit code identifying your business activity.
- Identity Verification: As of 2026, Directors and PSCs must verify their identity, either through GOV.UK One Login or via an Authorised Corporate Service Provider (ACSP), to receive the required personal code for registration.
What Happens If You Do Not Register for Corporation Tax?
Failing to register can cause problems quickly.
You may face:
- Late filing penalties
- Interest on unpaid tax
- Extra scrutiny from HMRC
Even if your company is not making money yet, registration is still required.
Key Deadlines to Avoid Penalties
Missing these deadlines can result in fines and interest charges.
| Action | Deadline |
| Register for Corporation Tax | Within 3 months of starting business activity. |
| Pay Corporation Tax | 9 months and 1 day after your accounting period ends. |
| File Company Tax Return (CT600) | 12 months after your accounting period ends. |
Note: You must file a return even if your company made a loss or has no tax to pay.
Why Is Your Accounting Period So Important?
Your “accounting period” is usually the 12 months covered by your annual accounts. When you first start a company, you might actually have two tax periods in your first year because of how the dates align with Companies House.
This is a common part of managing Corporation Tax for a Limited company for the first time. Always keep an eye on your “letter of notification” from HMRC when you first register. It tells you exactly which dates they expect you to report on.
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What Are the Reliefs and Deductions for Corporation Tax?
The UK tax system provides several ways for a limited company to lower its tax bill. These are split into deductions (daily costs that lower your profit) and reliefs (specific incentives to encourage business growth).
Here is a breakdown of how you can legally reduce your Corporation Tax for a Limited company.
Key Deductions (Allowable Expenses)
Companies can deduct expenses from their turnover before tax if they are strictly for business purposes:
- Office Costs: Rent, business rates, utility bills (light, heat, power), and insurance.
- Staff Costs: Salaries, bonuses, pension contributions, and employer National Insurance.
- Travel/Vehicles: Fuel, parking, and, in some cases, vehicle purchases via capital allowances.
- Marketing/Legal: Advertising, website costs, and professional fees (e.g., solicitors, accountants).
Key Reliefs and Allowances
- Capital Allowances: The Annual Investment Allowance (AIA) provides a 100% deduction on qualifying equipment up to £1 million, while Full Expensing offers an unlimited 100% deduction for most new and unused plant and machinery.
- R&D Relief: Most companies receive a 20% taxable credit, while loss-making R&D-intensive small businesses can claim the Enhanced R&D Intensive Support (ERIS) scheme.
- Patent Box: A lower 10% Corporation Tax rate on profits derived from patented inventions.
- Creative Industry Tax Reliefs: Special deductions for industries like film, television, animation, and video games.
- Loss Relief: Trading losses can be carried forward to future periods or, sometimes, carried back to offset previous profits.
- Marginal Relief: If profits are between £50,000 and £250,000, this provides a gradual increase in the tax rate rather than jumping directly to the top rate.
For detailed guidance, see the GOV.UK website.
Top Tip for 2026: Always keep your receipts digitally. HMRC accepts digital copies, and it makes it much easier for your accountant to ensure every single deduction is claimed before your tax deadline.
How Much Is Corporation Tax for a Small Limited Company?
Many people ask how much Corporation Tax is for a small limited company. In most cases, small companies pay 19 percent. If your company’s profits stay below £50,000, you remain at the lower rate. That includes many freelancers, contractors, consultants, and small family businesses. This lower rate helps smaller companies grow without facing the same tax pressure as large businesses.
How Does Corporation Tax Affect Dividends?
Corporation Tax is deducted from your company’s profits before any dividends are paid. After paying your Corporation Tax for a Limited company, the remaining profit can be distributed as dividends to shareholders. Directors often plan salaries and dividends carefully to minimise tax exposure.
Do I Have To Pay Corporation Tax If My Company is Making a Loss?
If your company makes a loss, you do not need to pay Corporation Tax. However, you still need to file your Corporation Tax Return (CT600) with HMRC. If you have carried forward losses from previous years, you may be able to offset those losses against future profits, reducing future tax liability.
What Happens If I Miss the Corporation Tax Filing Deadline?
If you miss the deadline for filing your Corporation Tax Return (CT600) or making the payment, you will face automatic penalties. For returns with a filing date before 1 April 2026, HMRC charges an initial £100 penalty. Another £100 is added to this fixed penalty for all returns due on or after 1 April 2026.
Additional penalties may apply if the return is more than 3 months late. Late payments also incur interest charges, so staying on top of your Corporation Tax for a Limited company deadlines is vital to avoid wasting money on fines.
Is There a Tax Benefit to Paying My Corporation Tax Early?
Yes, being proactive pays off. As of January 2026, HMRC pays “credit interest” at a rate of 2.75% to companies that pay their tax before the official deadline. This is usually calculated from the date you pay until the actual due date.
Can I Pay Corporation Tax In Instalments?
For large companies with profits over £1.5 million, HMRC requires quarterly instalment payments. These payments are based on your previous year’s tax bill, spread across four periods during the year. Smaller companies, with profits below this threshold, generally pay once a year.
What is the New 40% First Year Allowance?
Introduced in January 2026, this new capital allowance allows businesses to deduct 40% of the cost of qualifying plant and machinery from their taxable profits in the first year. This is particularly useful for assets that don’t qualify for “full expensing,” such as equipment used for leasing.
What is the Best Way to Stay on Top of Corporation Tax for A Limited Company?
The best strategy is to move your tax money into a separate savings account every single month. By setting aside roughly 20% to 25% of your income as you go, you won’t have a heart attack when the 9-month deadline rolls around.
Do I Need An Accountant To File Corporation Tax For A Limited Company?
While it’s not a legal requirement, hiring an accountant to file your Corporation Tax return is highly recommended. An accountant can ensure you’re compliant with HMRC. He can help you maximise deductions and reliefs to reduce your Corporation Tax for a Limited company. This also reduces the risk of making costly mistakes. An accountant is particularly helpful if your business is growing or if your financial situation is complex.
Are you looking for professional tech-savvy tax advisors and accountants in the UK to guide you? Contact us now!
The Bottom Line
Managing Corporation Tax for a limited company in 2026 is all about knowing your thresholds. Small companies often pay 19 percent, larger ones move toward 25 percent, and the space in between needs careful handling.
When managed properly, Corporation Tax becomes predictable rather than painful.
Keeping clean records and claiming every expense you are entitled to is the only real way to keep that bill as low as possible.
How Accotax Can Help
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Disclaimer: The information about “How Much is Corporation Tax for a Limited Company?” is provided in this article including text and graphics. It does not intend to disregard any of the professional advice.