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Live calculators
Live · New · 2026/27 rates
Sole trader vs limited company calculator
Your pay and your business profit, taxed both ways for 2026/27: income tax and Class 4 as a sole trader, corporation tax and dividend tax through a company. What you keep each way, side by side, with the working. No signup.
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Live · New
Pension Annual Allowance Calculator UK
Does the taper apply to you? Enter income and contributions to see your Annual Allowance this year, the headroom left, the MPAA effect and an estimate of the charge if you have gone over. Hands off to carry forward.
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Live · New · Scotland
Additional Dwelling Supplement Calculator
Scotland's 8% second-home and buy-to-let surcharge on the whole price, with the standard LBTT on top, the £40,000 threshold, the joint-buyer rule and the 36-month reclaim when you are replacing your main home.
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Live · New · Proposal
Proportional property tax calculator
What would the proposed 0.48% proportional property tax cost on your home, against the council tax you pay now? Shows who would pay more and who would pay less. A proposal, not policy. No signup.
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Live · New · 2026/27
Tax on savings interest calculator
How much tax will you pay on your savings interest in 2026/27? Works out your Personal Savings Allowance (£1,000/£500/£0), the £5,000 starting rate, and the Scotland rule. No signup.
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Live · New · 2026/27
State pension tax calculator
Will you pay income tax on your State Pension in 2026/27? The full new rate is £12,547.60 — just £22 under the frozen £12,570 allowance. Add other income, toggle Scotland, see your bill instantly. No signup.
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Live · New · 2026/27
NHS maternity pay calculator
Your NHS Agenda for Change maternity pay in full — 8 weeks full pay, 18 weeks half pay + SMP, 13 weeks SMP, then unpaid. See it month by month, spread it evenly, with your key dates. No signup.
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Live · New · 2026/27
Maternity pay calculator UK
Statutory Maternity Pay or your employer’s scheme — presets for NHS, teachers and civil service, or build your own for any employer. Month by month, spread it evenly, with your key dates. No signup.
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Live · New · 2026/27 rates
Adjusted net income calculator UK
Your salary isn't the number that matters — your adjusted net income is. Add pension sacrifice, an EV car scheme and your bonus, and see exactly where you land against the £100,000 personal-allowance taper and childcare cliff. Scottish bands, no signup.
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Live · New · 2026/27 rates
Dividend tax calculator UK
Dividend tax rose 2 points in April 2026 — 10.75% basic, 35.75% higher. Top-slices your dividends against salary the way HMRC does: £500 allowance, PA taper, pension band-extension, and exactly what the rise costs you. No signup.
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Live · New · April 2027
Cash ISA limit 2027 planner
The cash ISA cap falls to £12,000 for under-65s in April 2027 — just as savings tax rises 2 points. See your new cap, the overflow that stops fitting, and the tax it costs outside a wrapper. No signup.
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Live · New
Compound interest calculator UK
See how a lump sum plus monthly contributions compound over time — and exactly what reinvesting your dividends (DRIP) adds versus spending them. Monthly compounding, year-by-year chart, no signup.
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Live · New · True cost
Car Cost Calculator UK 2026
The true cost of owning a car — depreciation, finance interest and running costs combined over the years you keep it — across PCP, HP, bank loan or cash. Plus the opportunity cost of investing that money instead. The full life-event version (vs your real portfolio and FIRE date) lives in the app.
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Live · New · Escape route
HICBC Calculator UK 2026
High Income Child Benefit Charge on the post-April-2024 rules. £60k threshold, £80k full clawback. Shows the exact pension contribution needed to escape the charge entirely, and flags the £100k tax trap where pension relief hits 60–65%.
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Live · New · Backdating
Marriage Allowance Calculator UK 2026
Up to £1,260 across 5 tax years (current + 4 backdated). Models both spouses correctly — including the partial-benefit zone between £11,310 and £12,570 that HMRC's own calculator skips. Scotland + rUK threshold handled.
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Live · New · 2025/26 + 2026/27
UK Capital Gains Tax Calculator 2026
Post-30-October-2024 rates (18% / 24% for shares + property). Income-aware band split using the UK-wide £50,270 threshold. BADR rate change (14% → 18% from April 2026). Spouse-transfer mode doubles your AEA. Carried-forward losses input.
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Live · New · All 4 UK nations
UK Stamp Duty Calculator 2026 (SDLT / LBTT / LTT)
All 4 UK nations in one calculator — SDLT (England & NI), LBTT (Scotland with 8% ADS on whole price), LTT (Wales with separate higher-residential schedule). FTB rules per country, surcharges where they apply, band-by-band working.
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Live · New · Scotland
LBTT Calculator Scotland 2026
Scottish-first stamp duty calculator. Standard LBTT bands, FTB relief at £175k nil-rate (no upper cap, unlike England), and the 8% Additional Dwelling Supplement calculated on the whole price for second homes. Built in Edinburgh.
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Live · New · Wales
LTT Calculator Wales 2026
Welsh stamp duty calculator. Main residential bands (0% to £225k), separate higher-rate schedule for additional property (rose 1pp on 11 Dec 2024), and honest treatment of the fact that Wales has no FTB scheme.
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Live · New
Pension Carry Forward Calculator UK
Stack 3 years of unused Annual Allowance on this year's £60k — up to £240k in one go. Handles tapered AA for high earners and MPAA mode. Year-by-year breakdown so you can see exactly what's used and what's unused.
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Live
Long-term care cost calculator UK
A UK care cost calculator that models all four nations (England, Scotland, Wales, NI), the £86k cap toggle, NHS CHC, spouse-still-at-home logic and home/residential/nursing/dementia care types. Honest means-test maths most calculators get wrong.
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Live
Income shock calculator UK
What would unemployment, redundancy or a career break really cost you? Models direct savings shortfall PLUS opportunity cost — the growth foregone over your remaining years to retirement. The lifetime cost is usually 2-4× the direct hit.
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Live
Cost of raising a child UK
Year-by-year cost of raising a child in the UK from birth to 18, with realistic childcare options (family help, part-time, full-time, or custom monthly) and three education paths. The honest version of the £166k headline figure.
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Live
Overpay mortgage or invest? UK
The most-asked question on UK personal finance forums — answered with real maths. Compare overpaying your mortgage vs investing in an ISA, SIPP, GIA or cash savings. Year-by-year wealth chart, full UK tax engine.
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Live
Will my money last? — Monte Carlo
Run 5,000 simulated futures of your UK retirement plan. Real UK tax, State Pension, sequence-of-returns risk. The honest answer your pension statement won't give you.
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Live
Salary Sacrifice Pension Calculator UK
Real 2026/27 maths — income tax, NI 8%/2%, employer NI rebate, all five student loan plans, Scottish bands and the £100k tax trap. See exactly what changes for your take-home and your pension.
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Live
Coast FIRE UK Calculator
Find out if your portfolio is already big enough to coast to retirement — even if you stop contributing today. UK tax wrappers and inflation baked in.
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Live
Bed-and-ISA Calculator
Modelling moving GIA holdings into your ISA. See the CGT bill, the long-term tax saving, and whether it's worth doing this tax year.
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Live
FIRE Number Calculator UK
Your real FIRE number with UK tax drag, ISA/SIPP split, and 4% rule sensitivity. Built around how UK investors actually decumulate.
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Live · 2027
IHT on Pensions Calculator UK 2027
From April 2027 your pension joins your estate for IHT. Stack the income tax beneficiaries pay at 75+ and the rate hits 64–67%. See your real bill plus mitigation strategies.
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Live · New
Pension Tax-Free Lump Sum Calculator
Your 25% tax-free cash, where the frozen £268,275 Lump Sum Allowance starts limiting it, tax-free cash you have already taken, and the income tax on anything above the tax-free amount at Scottish or rest-of-UK rates.
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Live · 2026/27
CGT Allowance Tracker UK
Plan disposals against the £3,000 annual exempt amount. Optimise to allowance, model spouse transfers, factor in carried-forward losses — then export a branded PDF for clients.
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Go deeper
Planning guides
A calculator answers one question. These explain how the whole thing fits together under UK rules — and what the app does with your figures once they are in.
UK wealth tracker — the whole picture, carried forward to 99 · UK net worth tracker — what counts, and how UK holdings actually behave · UK retirement planner — when you can stop, and whether it lasts · UK pension tracker — the four kinds of pension, including final salary · FIRE calculator UK — your number, and the bridge to 57
Coming soon
In the build queue
Soon
SIPP Tax Relief Calculator
See exactly what HMRC tops up on a pension contribution — including 40% and 45% rate higher-rate relief you'd claim back via Self Assessment.
In progress
Soon
Dividend Tax Calculator UK
Dividend allowance is £500 for 2026/27. See what you'll owe across basic, higher and additional rates — and whether it's worth using your ISA first.
In progress
Soon
ISA Allowance Tracker
£20,000 across Stocks & Shares, Cash, LISA and Innovative Finance ISA. Track what you've used, what's left, and the 5 April deadline.
In progress
Soon
Lifetime ISA Bonus Calculator
Model the 25% government top-up on LISA contributions across your eligible years — and the trade-off vs. a SIPP for early retirement.
In progress
Why these calculators are different
Built for actual UK decisions, not generic ones.
UK tax rules baked in
2026/27 ISA, LISA, SIPP, dividend, CGT and income tax bands — not a US calculator with a pound sign bolted on.
Answers the next question
Each tool tells you what the number means and what to do next — not just "here's £273,418.92."
No signup, no email gate
Every tool is fully usable on the page. We're not holding your answer hostage for a marketing list.
Connects to the full picture
Each calculator plugs into the WealthR app — so once you've modelled the decision, you can track the actual outcome over time.
One number is helpful. The full picture is the point.
These free calculators are a slice of what WealthR does. The full app stitches your ISAs, SIPPs, property, pensions and side income into one live forecast — with tax, allowances and your real FIRE date on top. Free to try, takes about five minutes.
How WealthR compares
Side-by-side with the alternatives.
Honest reads on how WealthR fits next to the popular UK apps. Same questions, different answers — and sometimes the right move is to use both. Six comparisons live covering Emma, Ledgi, Moneyhub, PensionBee, Snoop and WealthView.
Compare
WealthR vs Moneyhub
Free UK retirement planner vs paid Open Banking aggregator. Manual entry vs bank linking. Future planning vs past spending.
Read the comparison →
Compare
WealthR vs PensionBee
Planning tool that covers every pension provider, vs a single managed SIPP. Most users benefit from both.
Read the comparison →
Compare
WealthR vs Emma
Wealth tracker & planner vs Open Banking budgeting app. Different primary needs — often used together.
Read the comparison →
Help shape what we build next
Got an idea for a new calculator, a missing feature, or a bug to report? Tell us what would actually help you — your feedback decides what ships next.