UK business tax calculators for limited company directors
Nine free UK tax calculators designed for company directors and people deciding whether to become one. Compare sole trader and limited company tax, calculate Corporation Tax, compare salary and dividends, work out the tax on your dividends, see your director take-home pay, work back from the income you want to the profit the company needs, and check employer National Insurance, a director's loan and a company car against a car allowance.
2026/27 UK ratesRates checked 16/09/2026No sign-up requiredEngland, Wales and Northern Ireland
Paying yourself
Salary, dividends and what actually reaches you.
Salary vs dividend calculator
Compare different combinations of director salary and dividends to see how much reaches you personally after tax.
Compare salary and dividends
Director take-home pay calculator
Enter your salary and dividends and see your estimated monthly and annual take-home pay.
Calculate take-home pay
How much can I pay myself?
Start with the personal income you want and calculate approximately how much company profit is required to fund it.
Calculate required profit
Dividend tax calculator
Enter your dividends, salary and other income and see the dividend tax slice by slice, the rate on the next pound and the headroom before the next band.
Calculate dividend tax
Your company's tax
What the company owes, and what happens when money leaves it.
Corporation Tax calculator
Enter your taxable company profit and see your estimated Corporation Tax, marginal relief and effective tax rate.
Calculate Corporation Tax
Director's loan calculator
See the s455 charge on an overdrawn loan account, the benefit in kind over £10,000, when each is due, and what clearing the loan with a dividend would cost instead.
Calculate director's loan tax
Employing people and benefits
Payroll costs and company cars.
Employer National Insurance calculator
Enter up to five salaries and see the employer NI on each, the Employment Allowance, and what the payroll costs the company in total.
Calculate employer NI
Company car vs car allowance calculator
Compare the tax on a company car, from the list price, CO2 and fuel type, with a cash allowance after tax, National Insurance and mileage relief.
Compare car and allowance
Starting out
Not a company yet? Start here.
No account required. No email required before you see your result. Your figures stay in your browser.
What these are, and what they are not
They are a way of seeing how the tax works on your own numbers, so that a conversation with your accountant starts further along. Every one shows the full working, a worked example you can check by hand, and answers to the questions directors ask most. They are not tax advice, they are not a personal recommendation, and they cannot see the rest of your circumstances.
All nine cover England, Wales and Northern Ireland for the 2025/26 and 2026/27 tax years. Scottish income tax rates are not included. The rates behind them are checked against GOV.UK, the date of the last check is shown on every page, and how the calculators work sets out every assumption.
How the nine fit together
If you are not yet a company, start with the sole trader comparison to see whether incorporating is worth it on your profit. Then take the Corporation Tax on your company's profit. Then see how much of what is left reaches you under different salary and dividend mixes, and what the dividend tax on your chosen mix looks like slice by slice. Then look at what the mix gives you each month. Or start from the other end: say what you want to take home and work back to the profit the company has to earn. Each calculator links to the next one and carries your figures across. The last three deal with what running a company throws up along the way: what a payroll costs the company in employer National Insurance, what happens when the director's loan account goes overdrawn, and whether a company car or a car allowance leaves the director better off.
Who built them
Luvero Accounting, an AAT licensed accountancy practice in Bawtry, South Yorkshire, working with owner-managed companies. The calculators are reviewed by Dan Edwards FMAAT. We built them because we were answering the same questions every week and it seemed more useful to put the answers somewhere everyone could get at them.
If you want to talk to a person about your own position, book a free 30-minute call below, or find us at luvero.uk.
Built and reviewed by Luvero Accounting
- Reviewed by Dan Edwards FMAAT
- AAT licensed accountancy practice, Bawtry, South Yorkshire
- Tax rates last reviewed 16/09/2026
- How the calculators work