Free UK Personal Finance Tools
Plain-English calculators and helpers for UK money decisions. No sign-up, no email, no upsell, just the maths, in seconds.
All tools use figures from official UK government sources: HMRC, gov.uk, the Bank of England, and the FCA. They are not financial advice.
Lifetime ISA Calculator
Project your 25% government bonus and total balance. Year-by-year breakdown.
Capital Gains Tax Calculator
Calculate CGT on shares, property, and crypto using 2025/26 rates and the £3,000 allowance.
Take-Home Pay Calculator
Income tax + National Insurance breakdown for any UK salary, including pension contributions.
Kvanta Prep: assessment practice
Free practice for the tests, games, video interviews and assessment centres in UK finance applications, with firm-by-firm process pages.
Coming soon
Stamp Duty Calculator
SDLT on UK property purchases, including first-time buyer relief and the April 2025 changes.
Coming soon
Mortgage Repayment Calculator
Monthly payments and total interest for fixed and variable UK mortgages.
New tools, the morning they launch
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Disclaimer: These tools are for informational purposes only and do not constitute financial advice. Kvanta is not regulated by the FCA. All figures, rates, and rules are based on official government publications and are subject to change, always verify with HMRC, gov.uk, or a qualified adviser before making financial decisions.