Income Tax Calculator
Estimate annual income tax using a flat effective rate.
OpenTax Calculators
Browse tax and payroll related calculators for US, UK, and general planning.
GST Calculator
Add or remove GST from a price.
OpenUS Income Tax Calculator
Federal plus state estimate and yearly take-home pay.
OpenStamp Duty (SDLT) Calculator
Estimate UK stamp duty with first-time buyer option.
OpenIncome Tax / NI Calculator
Estimate UK income tax, National Insurance, and net pay.
OpenVAT Calculator
Add or remove VAT at UK style rates.
OpenCouncil Tax Calculator
Estimate annual council tax using a band and local multiplier.
OpenCapital Gains Tax (CGT) Calculator
Estimate capital gains tax after allowance and rate.
OpenCorporation Tax Calculator
Estimate corporation tax on company profits.
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