お金と税金の計算ツール
お金に関する疑問のための計算ツールです。税金と国民保険料（National Insurance）を引いた手取り、不動産購入時の印紙税、VAT、貯蓄の利息、目標までにかかる期間を見積もれます。
計画の参考にするための見積もりであり、金融上の助言ではありません。
米国向けの計算ツールをお探しですか？ 米国の所得税、州税を含む手取り給与、売上税、住宅ローンの支払い、401(k)とRoth IRAの上限、キャピタルゲイン税、自営業税のツールがあり、すべて2026年の数値とドルで計算します。
料率としきい値は 2026年10月18日 に最後に確認しました。
UK tax すべて表示
Capital Gains Tax CalculatorEstimate capital gains tax on selling shares or property for 2026/27, with the 18% and 24% rates.Dividend Tax CalculatorEstimate dividend tax on top of your salary for 2026/27, with the dividend allowance and each band.UK Inheritance Tax CalculatorEstimate inheritance tax on an estate for 2026/27, with the residence nil rate band, spouse and charity exemptions.UK Income Tax CalculatorWork out your income tax for 2026/27 and see the tax bands and rates for England, Wales, Northern Ireland and Scotland.National Insurance CalculatorWork out employee Class 1 National Insurance for 2026/27, and the employer's share, from your pay.Bonus Tax CalculatorSee how much of a bonus you keep after income tax and National Insurance in 2026/27.Pension Tax Relief CalculatorSee how much tax relief you get on pension contributions in 2026/27 and what they really cost you.Salary Sacrifice CalculatorFind the tax and National Insurance you save by giving up salary for pension in 2026/27.Savings Interest Tax CalculatorCheck if you owe tax on savings interest in 2026/27, using the Personal Savings Allowance and the starting rate.VAT CalculatorAdd VAT to a price or take it out again at 20%, 5%, 0% or any rate you choose.
US tax すべて表示
US Income Tax CalculatorEstimate US federal income tax for 2026 by filing status, with the standard deduction and each bracket.US Paycheck CalculatorEstimate US take-home pay after federal tax, Social Security, Medicare and state income tax for 2026.US Sales Tax CalculatorAdd sales tax to a price or take it out again, using the state rate and an editable local rate.401(k) CalculatorProject your 401(k) balance with your contributions, employer match, pay rises and 2026 limits.Roth IRA CalculatorFind your 2026 Roth IRA contribution limit after the income phase-out, and see how it could grow.US Capital Gains Tax CalculatorEstimate US federal tax on short and long term gains for 2026, with the 0%, 15% and 20% rates and NIIT.Self-Employment Tax CalculatorEstimate US self-employment tax for 2026 with the 92.35% factor and the Social Security wage base.
Property and mortgages すべて表示
Loan & Mortgage CalculatorEstimate monthly repayments, total interest and the effect of overpaying.UK Mortgage CalculatorWork out the monthly payment, total interest and a year by year balance for a repayment or interest only mortgage.US Mortgage CalculatorWork out a monthly mortgage payment with property tax, homeowners insurance, PMI and HOA dues.Commercial Stamp Duty CalculatorWork out stamp duty (SDLT) on a freehold commercial or mixed use property in England and Northern Ireland.Stamp Duty Calculator by DateSee the stamp duty on a home in England or Northern Ireland at any date since December 2014.Net Initial Yield CalculatorWork out the net initial yield on a commercial property after costs, with stamp duty and fees included.Mortgage Affordability CalculatorEstimate how much you could borrow from your income, and the monthly payment at several income multiples.Remortgage CalculatorCompare your current mortgage with a new deal, including fees and exit charges, and see when switching pays off.Buy to Let Mortgage CalculatorCheck the rental cover a buy to let lender will want, the most you could borrow and the yearly profit.Interest Only vs Repayment Mortgage CalculatorCompare interest only and repayment mortgages on monthly payment, total cost and the debt left at the end.Stamp Duty CalculatorEstimate stamp duty (SDLT), LBTT in Scotland or LTT in Wales on a home purchase.Mortgage Overpayment CalculatorSee the interest and time you save by overpaying a mortgage each month or in one lump sum.Rental Yield CalculatorWork out gross and net rental yield, running costs and cash flow with an interest-only mortgage.
Savings, investing and pensions すべて表示
UK Pension CalculatorProject a pension pot with your contributions, tax relief at source or net pay, employer money and growth.UK Retirement CalculatorCompare the savings you need for the income you want with your projected pot, including the State Pension.ISA Allowance TrackerTrack how much of your £20,000 ISA allowance for 2026/27 you have used and what is left.Emergency Fund CalculatorFind the size of emergency fund you need from your essential costs, and how long it takes to build.Budget PlannerSplit your take-home pay into needs, wants and savings with the 50/30/20 rule, or your own shares.Net Worth CalculatorAdd up what you own and what you owe to find your net worth.Cost Per Wear CalculatorFind what an item of clothing really costs each time you wear it, and how many wears justify the price.Compound Interest CalculatorSee how savings grow with regular deposits, a chosen interest rate and compounding.Savings Goal CalculatorFind out how long it takes to reach a savings goal, or how much to save each month.
Pay and work すべて表示
Overtime Pay CalculatorEstimate overtime pay for a week, day by day.Student Loan Repayment CalculatorWork out your monthly and yearly student loan repayment for Plans 1, 2, 4 and 5, or a postgraduate loan.Redundancy Pay CalculatorEstimate statutory redundancy pay from your age, years of service and weekly pay for 2026/27.Holiday Entitlement and Pay CalculatorWork out annual leave and holiday pay for a fixed week, part year or irregular hours in 2026/27.Pay Rise CalculatorWork out a pay rise as a percentage or an amount, with the extra take-home pay and the effect of inflation.Part-Time Salary CalculatorConvert a full-time salary into the pay for part-time hours, with monthly, weekly and hourly figures.Freelance Day Rate CalculatorWork out the day rate you need to charge to reach your target income after costs, holidays and time you cannot bill.Statutory Sick Pay CalculatorEstimate Statutory Sick Pay for 2026/27 from your average weekly earnings and the days you are off.Statutory Maternity Pay CalculatorEstimate Statutory Maternity Pay for 2026/27, week by week, from your average weekly earnings.Minimum Wage CheckerCheck whether your pay meets the UK National Minimum Wage or National Living Wage rates from April 2026.Commission CalculatorWork out commission on sales at a flat rate or in bands, with or without a base salary.UK Take-Home Pay CalculatorWork out pay after income tax, National Insurance, student loan and pension for 2026/27.Hourly to Salary CalculatorConvert pay between hourly, daily, weekly, monthly and annual amounts.
Business and selling すべて表示
Profit Margin CalculatorWork out profit, margin and markup from cost and price, or find the price for a target margin.EU VAT CalculatorAdd or remove VAT at the standard or reduced rate of any EU country, with a dated table of rates.Etsy Fee Calculator (UK)Estimate Etsy fees on a UK sale and the profit left, with editable rates.Amazon Seller Fee Calculator (UK)Estimate Amazon UK referral fees, plan fees and profit on a sale, with VAT taken out.YouTube Earnings EstimatorEstimate a monthly and yearly income range from views and an editable RPM for long videos and Shorts.Twitch Earnings EstimatorEstimate monthly income from subscribers, Bits and ads with editable prices and revenue share.NPV and IRR CalculatorWork out the net present value, internal rate of return and payback time of a series of yearly cash flows.ROI CalculatorCalculate return on investment as a percentage, with the gain in pounds and the return per year.Depreciation CalculatorSpread the cost of an asset over its life with straight line or reducing balance depreciation, year by year.Break Even CalculatorFind how many units you must sell to cover your costs, and how many to reach a target profit.Employee Cost CalculatorWork out what an employee really costs you in a year, with employer National Insurance and pension for 2026/27.Late Payment Interest CalculatorWork out the statutory interest and fixed compensation you can claim when another business pays an invoice late.Business Mileage Allowance CalculatorWork out HMRC approved mileage payments, or the flat rate you can claim as self-employed, for the 2026/27 tax year.Working From Home Expenses CalculatorAdd up the simplified expenses flat rate for working from home as self-employed, month by month, and compare it with your actual costs.Unit Economics CalculatorSee what each sale really earns after product cost, fees, shipping and refunds, and the price needed for the margin you want.MRR and ARR CalculatorTurn your plans into monthly and annual recurring revenue, and track how the month moved with expansion and churn.Churn and Retention CalculatorFind your customer churn and retention rate, how long a customer stays, their lifetime value and where your customer count is heading.Net Promoter Score CalculatorTurn survey scores from 0 to 10 into your Net Promoter Score, with the split of promoters, passives and detractors and a margin of error.Payment Terms Due Date CalculatorFind the due date for net 30, 30 days from month end, end of next month and other payment terms, with early payment discount dates.12 Month Cash Flow ForecastBuild a 12 month cash flow forecast with money in and out, growth, one-off and quarterly payments, and see when the balance dips.Meeting Cost CalculatorSee what a meeting costs as it happens, from the salaries of everyone in the room, with a running total you can start and stop.Reorder Point and Safety Stock CalculatorWork out when to reorder stock, how much safety stock covers the risk of running out, and the order size that keeps costs lowest.
Banking and validators すべて表示
IBAN ValidatorCheck an IBAN for the right length and valid check digits, and see the country.VAT Number Format CheckerCheck that a UK or EU VAT number is written in the right format. Format check only.National Insurance Number CheckerCheck that a National Insurance number is in the right format. Format check only.Card Number ValidatorCheck card numbers with the Luhn check digit test and see the likely card network.APR CalculatorFind the APR of a loan or credit offer, including fees, from the amount, the term and the rate or the monthly payment.Credit Card Repayment CalculatorSee how long a credit card balance takes to clear and the interest it costs, or the payment needed for a set time.Debt Payoff CalculatorCompare the snowball and avalanche methods for clearing several debts, with time and interest for each.Loan Comparison CalculatorCompare up to three loans side by side on monthly payment, interest, fees and total cost.Car Finance CalculatorWork out the monthly payment on hire purchase or a personal contract plan with a final payment.Lease vs Buy Car CalculatorCompare the real cost of leasing a car with buying it on finance and selling it at the end.
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最初に読みたいガイド
How mortgage overpayments work, with worked examples
See how paying extra on a UK repayment mortgage cuts the term and the interest, with worked monthly and lump sum examples, and the limits to check first.
Rental yield explained: gross, net and cash return
How to work out gross and net rental yield on a UK buy-to-let, with a worked example covering stamp duty, costs and a mortgage.
How APR works on UK loans and credit cards
What APR includes, what representative APR means, how to compare loans and cards with worked monthly payment examples, and how APR differs from AER.