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All calculators are free and require no sign-up. Results are illustrative estimates — always verify with your lender, HMRC, or a qualified adviser before making financial decisions.
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Mortgage🇬🇧 UK
Mortgage Repayment Calculator
Calculate your monthly mortgage payment, total interest, and full repayment schedule for any loan amount, rate, and term.
▸Monthly payment breakdown
▸Total interest over full term
▸Overpayment impact tool
▸Year-by-year amortisation
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Stamp Duty🇬🇧 UK
Stamp Duty Calculator
Calculate SDLT for England & Northern Ireland, LBTT for Scotland, and LTT for Wales — including first-time buyer relief.
▸England, Scotland & Wales
▸First-time buyer relief
▸Second home surcharge
▸Band-by-band breakdown
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Income Tax🇬🇧 UK
Income Tax Calculator UK
Calculate your UK income tax, National Insurance, and take-home pay for any salary — including Scottish income tax rates.
▸England & Scottish rates
▸Income tax + NI breakdown
▸Monthly & annual figures
▸Effective tax rate shown
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Savings🌍 Global
Compound Interest Calculator
See how your money grows over time with compound interest — model savings, investments, or any lump sum with regular contributions.
▸Lump sum + monthly contributions
▸Daily, monthly, annual compounding
▸Year-by-year growth chart
▸Inflation-adjusted toggle
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Savings Goal🌍 Global
Savings Goal Calculator
Find out how long to reach any savings target — or calculate exactly how much to save each month to hit a goal by a set date.
▸2 modes: how long / how much
▸Interest rate included
▸Year-by-year progress chart
▸Works for ISA, TFSA, HYSA
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Debt Payoff🌍 Global
Debt Payoff Planner
Add all your debts and compare the snowball vs avalanche method — see your exact debt-free date and total interest saved with each strategy.
▸Add unlimited debts
▸Snowball vs avalanche comparison
▸Month-by-month schedule
▸Interest saving shown
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Budget🌍 Global
Budget Planner — 50/30/20 Rule
Build a monthly budget using the 50/30/20 rule. Enter income and expenses — get an instant scorecard and see your surplus or deficit.
▸Needs / wants / savings split
▸Animated donut chart
▸On-track / warning scorecard
▸Surplus / deficit shown clearly
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Retirement🌍 Global
Retirement Calculator
Find your retirement target number, project your pension or super balance, and see if you're on track — with UK, US, Canada and Australia modes.
▸🇬🇧 🇺🇸 🇨🇦 🇦🇺 country modes
▸25× rule target number
▸Age-by-age projection chart
▸Gap analysis + tips
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