Privacy-first financial tools
Financial tools that respect your privacy
Free UK calculators with zero tracking, zero cookies, and zero data collection. Every calculation runs entirely in your browser.
Tools
UK financial calculators — free, private, accurate
Built with the same data sovereignty principles we use for our managed AI clients.
UK Salary & Tax Calculator
Calculate your take-home pay after income tax, National Insurance, student loans, and pension contributions. Covers England, Scotland, and Wales with 2025/26 and 2026/27 rates.
13 modesStamp Duty Calculator
Calculate SDLT, LBTT, and LTT for England, Scotland, and Wales. Supports first-time buyers, additional properties, and non-UK residents.
3 regionsMortgage Repayment Calculator
Calculate monthly repayments, total interest, and amortisation schedule. Model overpayments, stress test at higher rates, and check affordability.
Full schedulePrivacy
Built different. Built private.
Zero cookies
We don't set a single cookie. No consent banners needed because there's nothing to consent to.
Zero tracking
No Google Analytics. No Facebook Pixel. No fingerprinting. We don't know who you are, and we don't want to.
Zero data collection
Every calculation runs in your browser. Your financial data never touches our servers. We couldn't access it even if we wanted to.
Coming soon
More tools on the way
We're building the UK's most comprehensive suite of free financial calculators. Dividend tax, corporation tax, VAT, capital gains, pensions, and more — all with the same commitment to privacy.
See all tools →