Free UK Tax Calculators — Updated for 2025/26
Calculate capital gains tax, dividend tax, company car BIK, corporation tax, and more. Instant results. No signup required.
Free Tax Calculators
Live results as you type. Visual breakdowns. Scenario comparison. Updated for the 2025/26 tax year.
Capital Gains Tax Calculator
Calculate CGT on property, shares, and other assets. Includes annual exemption and tax year comparison.
Dividend Tax Calculator
Work out your dividend tax and compare salary vs dividend splits for company directors.
Company Car Tax Calculator
Calculate BIK on company cars. Compare EV vs petrol/diesel and car allowance alternatives.
Corporation Tax Calculator
Calculate corporation tax with marginal relief for profits between £50K and £250K.
Salary Sacrifice Calculator
See the real cost of salary sacrifice for pensions, EVs, and cycle to work schemes.
Rental Income Tax Calculator
Calculate tax on rental income including Section 24 mortgage interest restriction.
Commercial Stamp Duty Calculator
Calculate SDLT on commercial property purchases and leases.
IR35 Calculator
Compare take-home pay inside vs outside IR35 for contractors.
How it works
Choose your calculator
Pick from 8 specialist UK tax calculators.
Enter your numbers
Results update live as you type. No forms to submit.
See your tax breakdown
Visual charts, scenario comparisons, and plain-English explanations.
Built for You
Employees
Is the company car worth it? How much does salary sacrifice really save?
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