How to Pay Corporation Tax: Deadline, Reference and Methods
HMRC never bills you for corporation tax. The 9-months-and-1-day deadline, the 17-character reference, payment methods…
Enter your taxable profit. Everything updates as you type.
Salary is an allowable expense, so it reduces the profit that Corporation Tax is charged on. The figure above is your profit before salary; we deduct it below.
19% up to the lower limit, 25% above the upper limit, with marginal relief in between. Short periods and associated companies reduce the limits.
Corporation Tax due
effective rate on taxable profit
Estimate only. Excludes reliefs, capital allowances and group rules.
How your Corporation Tax bill and retained profit change across the profit range, at your current period and associated-company settings.
| Item | Value |
|---|---|
| Lower limit (small profits) | |
| Upper limit (main rate) | |
| Small profits rate | |
| Main rate | |
| Marginal relief fraction | |
| Marginal effective rate in band |
Profits in the marginal band are effectively taxed at - higher than the headline 25% - because marginal relief is being clawed back.
The Limited Company Tax Calculator does more than show a number. Below your result it explains what your figures mean in practice - your effective and marginal rates, any allowances or thresholds you are close to, and the specific steps to take next. Enter your details above and the guidance updates to match your situation.
Do this next, in order
Estimates only - not financial or tax advice. Confirm figures on GOV.UK or with an adviser.
| Scenario | Taxable | Tax | Eff. rate | Retained | |
|---|---|---|---|---|---|
Enter your company's profit before tax, the salary you draw and the dividends you plan to take, then read the breakdown the calculator above produces. It follows the money in the order HMRC does: corporation tax at the company first, then income tax and National Insurance on what you pay yourself.
A limited company is a separate legal person, so its money is not automatically yours. That single fact explains almost everything about how a limited company tax calculator works. Profit is taxed twice over two stages, and the trick to keeping the bill sensible is understanding both.
Stage one happens inside the company. Your company pays corporation tax on its taxable profit (turnover minus allowable costs, including your own salary, which is a deductible business expense). The corporation tax rate depends on the level of profit and is set by HMRC each year, so for the exact percentage and the marginal relief band use our dedicated corporation tax calculator. Whatever is left after corporation tax is the company's distributable reserves.
Stage two happens when you move that money to yourself. You have two main routes:
So the full formula a limited company tax calculator runs is:
Director take-home = Salary − income tax − employee NI + Dividends − dividend tax, where the dividends are only payable from Profit − salary − corporation tax.
Get the order wrong and you double-count. The salary is removed before corporation tax; the dividend tax is charged after corporation tax. The calculator keeps the two stages separate so the numbers reconcile.
A common approach for a single-director company is a salary pitched at the point where no income tax and no employee National Insurance are due, then dividends on top. For 2026/27 the Personal Allowance is £12,570 and the National Insurance Primary Threshold is also £12,570, so a salary at that level is the natural marker: it uses your tax-free allowance, counts as a company expense, and triggers no personal income tax or employee NI on the salary itself. Whether it is optimal for your company also depends on employer NI and corporation tax relief, which is exactly the trade-off our salary vs dividend calculator is built to optimise.
Dividends sit on top of your other income and have their own rates, which rose for 2026/27. Everyone gets a £500 dividend allowance taxed at 0%. Above that, the rate depends on which income tax band the dividend falls into once it is stacked on top of your salary:
| Dividend band | 2026/27 rate |
|---|---|
| Dividend allowance (first £500) | 0% |
| Ordinary (basic) rate | 10.75% |
| Upper (higher) rate | 35.75% |
| Additional rate | 39.35% |
The ordinary and upper rates each went up by two percentage points for 2026/27. To see the dividend portion of your bill on its own, use the dividend tax calculator. Source for the rates and allowance: gov.uk – Tax on dividends.
Dividends are taxed using the same band limits as the rest of your income, so it helps to see them in one place. These are the figures the calculator uses for England, Wales and Northern Ireland:
| Item | 2026/27 value |
|---|---|
| Personal Allowance | £12,570 |
| Basic-rate band (taxable income) | up to £37,700 |
| Higher-rate threshold (total income) | £50,270 |
| Additional rate starts | £125,140 |
| Personal Allowance taper | −£1 per £2 of income over £100,000 |
| NI Primary Threshold (employee) | £12,570 |
Official thresholds: gov.uk – Income Tax rates and Personal Allowances. The corporation tax rate your company pays is set separately at gov.uk – Corporation Tax.
Meet Priya, the sole director of a one-person consultancy. After her costs, her company has £60,000 of profit, and she takes a salary of £12,570 plus £40,000 in dividends across the year. Here is the full journey her limited company tax calculator walks through.
Step 1 – Salary at company level. The £12,570 salary is a deductible expense, so it comes off profit before corporation tax. Personally, the salary equals the Personal Allowance and sits right on the NI Primary Threshold, so the income tax and employee NI on the salary are both £0.
Step 2 – Corporation tax. Taxable profit after the salary is £60,000 − £12,570 = £47,430. Corporation tax is charged on that figure at the prevailing 2026/27 rate (run the exact amount through our corporation tax calculator). Whatever remains after that bill is the pot Priya can pay herself as dividends.
Step 3 – Dividend tax. Priya draws £40,000 in dividends. Her salary has already used the whole Personal Allowance, so all £37,700 of her basic-rate band is available for the dividends. The maths:
Total dividend tax = £4,052.75 + £643.50 = £4,696.25. Her total income of £52,570 nudges £1,800 into the higher-rate band, which is why a small part of the dividend is taxed at 35.75%.
Step 4 – Personal take-home. Salary £12,570 + dividends £40,000 = £52,570 drawn, minus £4,696.25 dividend tax = £47,873.75 in Priya's pocket. The corporation tax has already been settled at the company before the dividends were released, so there is no double-counting.
If Priya's company had only £30,000 of profit and she took the same £12,570 salary plus, say, £15,000 of dividends, the dividend maths is gentler: £500 at 0% and £14,500 at 10.75% = £1,558.75, because the whole dividend stays inside the basic-rate band. Smaller draws keep you below the £50,270 higher-rate threshold and away from the 35.75% rate entirely.
Behind the result, the tool does what an accountant would do on paper:
It is an estimate, not a substitute for proper accounts. It assumes a single director with no other income, no benefits in kind and no pension contributions, which keeps the picture clear.
A few levers genuinely move the needle for most small Ltd companies:
If you are weighing up trading through a company at all versus staying a sole trader, compare the two routes with our self-employed tax calculator before you incorporate.
The errors below cost real money and crop up every January at self assessment time:
Corporation tax and dividend tax are UK-wide, so a director in Glasgow and one in Cardiff pay the same corporation tax rate and the same dividend rates. The wrinkle is your salary: if you are a Scottish taxpayer, the salary portion is taxed using Scotland's income tax bands rather than the rest-of-UK bands. Because most directors keep salary at or near the £12,570 Personal Allowance, the Scottish difference is often small in practice, but it matters if you draw a larger wage. Dividends always use the UK-wide rates regardless of where you live.
If you are a contractor working inside or outside IR35, that status changes how much of your contract income can be taken as dividends at all, so it is worth checking with our contractor calculator alongside this tool.
These figures are estimates for guidance only and are not personal tax or financial advice. Confirm your position with HMRC or a qualified accountant before acting.
This looks at a limited company’s total tax position — Corporation Tax on profit, then the personal tax a director pays on the salary and dividends drawn out. It is the whole-picture view, where the corporation tax calculator stops at the company level.
Two things drive the outcome. The director’s salary is usually set around the National Insurance thresholds — enough to preserve a State Pension qualifying year, low enough to limit NI — and the balance taken as dividends. And profit left in the company is taxed only at Corporation Tax rates, which is the main planning lever available.
Carry on building the full picture with our corporation tax calculator for the company-level bill, the salary vs dividend calculator to optimise the split, and the dividend tax calculator to isolate the personal dividend charge.
Innovative companies can reduce their corporation tax by claiming R&D tax credits on qualifying research and development.
Employing staff? The Employment Allowance takes up to £10,500 off employer NI in 2026/27.
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