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All Calculators

Every UK personal-finance calculator, decision tool and QA route on the site, organised by category. 98 tools covering tax, pensions, property, investing, family benefits, contractors, HMRC navigation, planning packs, calculator QA and guided decision routes. Free, 2026/27 rates, no sign-up.

Calculator finder

Find the right tool by goal, topic, or HMRC problem

Search by keyword or narrow the list by area. The best route is usually the one that matches the job you are trying to do, not just the product name.

98 free tools
Typing fixedSearch is native input

The finder now uses a plain search field, a clear button, quick queries and delegated filter handling so it stays usable on mobile and desktop.

Use by goalStart with the life event

Search "home", "P800", "childcare" or "pension" before worrying about the exact calculator name.

Trust habitCheck assumptions

Each calculator should show the working or the assumptions on its own page. If the result surprises you, inspect the assumptions first.

Choose the right routeUse the Decision Centre when you know the life event but not which calculator to open first. Lower tax this yearStart with the annual health check, then move into salary sacrifice or adjusted net income. Buying or remortgagingCompare mortgage, SDLT, rent versus buy, and remortgage break-even decisions. Pension planningCheck annual allowance, taper, carry-forward, and drawdown before retirement. HMRC letter panicDecode P800, P2, tax-code, and penalty letters before deciding what to do next. Cards, debt and billsCredit card payoff, balance transfers, debt strategy, emergency fund, switching, bills and car finance. Energy and household billsEnergy switching, fixed tariffs, Economy 7, broadband, insurance, water and council tax checks. Scams, refunds and protectionAPP fraud refunds, Section 75, chargeback, Direct Debit errors, entitlements and FSCS cash protection. Check calculator qualitySee the formula checks, worked examples, confidence labels and edge cases behind the tools.

98 tools shown across 12 categories · updated for the 2026/27 UK tax year · embed any of these on your site

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