All calculators
Browse available calculators by category or search for a specific calculation.
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Money & Tax
Work out take-home pay, income tax, National Insurance, VAT and dividend tax.
Income Tax Calculator
Estimate income tax by band, including the personal allowance taper on higher incomes.
National Insurance Calculator 2026/27
Estimate employee Class 1, employer National Insurance and self-employed Class 4 contributions.
Self-Employed Tax Calculator
Estimate Income Tax, Class 4 NI, take-home profit and a monthly tax set-aside on trading profit.
Take Home Pay Calculator
See what lands in your account each month after income tax, National Insurance and pension.
Salary Calculator
Convert gross pay between annual, monthly, weekly, daily and hourly, including pro-rata.
VAT Calculator
Add or remove VAT at standard, reduced or zero rates.
Dividend Tax Calculator
Work out tax on dividends alongside salary, using the dividend allowance and rates.
Mortgages & Property
Repayments, overpayments, stamp duty and buy-to-let numbers for UK property.
Business
Corporation tax, VAT positions and the numbers behind running a UK company.
Everyday Calculators
Percentages, dates, ages and the small sums that come up constantly.