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From National Insurance contributions to mileage claims and Capital Gains Tax estimates — TaxSimba helps you calculate with confidence.
Our expert tools help you navigate UK taxes, national insurance, and benefits with precision and elegance.
Estimate UK NI contributions (Class 1 & 4).
Calculate tax when you have both a job and side earnings.
Estimate your take-home pay after tax and NI deductions.
Detailed breakdown of your annual UK income tax bands.
See how much the government adds to your pension pot.
Estimate support and HICBC charges for high earners.
Caculate late filing fines and interest from HMRC.
Landlord tax calculator for property rental profits.
Construction Industry Scheme tax refund estimator.
Estimate tax on online reselling and side hustles.
UK property purchase tax (Stamp Duty Land Tax) costs.
Dedicated calculator for ride-share driver profits and tax.
Decode your HMRC tax code and personal allowance.
Calculate tax relief for business miles and travel.
Tax on share dividends and company distributions.
Estimate capital gains tax on cryptocurrency trades.
UK limited company profit tax estimator (19-25%).