Financial

  • Recurring Savings Calculator with Tax on Each Compounding
    Japan-style recurring deposit calculator that withholds tax (default 20.315%) on interest at every compounding period. Get a full schedule and maturity total.
  • Selling Price from Cost and Gross Margin Calculator
    Find the selling price from cost and desired gross margin. Also returns gross profit and mark-up percent. Free, currency-neutral pricing calculator.
  • UK Student Loan Repayment Calculator
    Estimate your UK student loan repayments by plan (1, 2, 4, 5 or Postgraduate). Income above the threshold is repaid at 9% (6% for postgrad). 2026/27 rules.
  • Federal Tax Withholding (Percentage Method) Calculator (US)
    US IRS Pub 15-T percentage method calculator. Estimate federal income tax withheld per paycheck from gross wages, pay frequency, and W-4 filing status (2026).
  • Paycheck Tax Withholding Calculator (US W-4 Estimator)
    Estimate US federal income tax withheld from each paycheck. Free W-4 estimator using 2026 brackets and standard deduction by filing status.
  • Self-Employment Tax Calculator (US)
    Estimate US self-employment tax (Social Security 12.4% + Medicare 2.9%) on your net profit. 2026 rules with the 92.35% adjustment and SS wage cap.
  • Tax Refund Calculator (US)
    Estimate your 2026 US federal tax refund or balance due from your income and withholding using the standard deduction and IRS tax brackets.
  • Taxable Income Calculator (US)
    Free US taxable income calculator. Subtract the 2026 standard or itemized deduction and QBI from your AGI to estimate federal taxable income.
  • Marginal vs Effective Tax Rate Calculator
    Compare your marginal and effective federal income tax rates using 2026 US brackets. Enter taxable income and filing status to see total tax owed.
  • FICA Tax Calculator (US)
    Calculate your 2026 US FICA tax — 6.2% Social Security (up to the $184,500 wage base) plus 1.45% Medicare and the 0.9% additional Medicare surtax.
  • Taxable Social Security Benefits Calculator (US)
    US calculator: estimate how much of your Social Security benefits are taxable using IRS provisional-income thresholds (up to 85% taxable).
  • UK National Insurance Calculator
    Calculate your UK Class 1 employee National Insurance contributions for 2024/25 and 2023/24 from your annual gross salary, monthly and weekly.
  • Earned Income Tax Credit (EITC) Calculator
    Estimate your 2026 US Earned Income Tax Credit by filing status, qualifying children, earned income, and AGI. Free EITC calculator.
  • Property Depreciation Calculator
    Estimate annual real estate depreciation using the US MACRS straight-line method for residential (27.5 yr) and commercial (39 yr) property.
  • Future Value Calculator with Contributions
    Calculate the future value of an investment with an initial principal plus regular monthly, quarterly or annual contributions and compound interest.
  • Pay Raise Over Time Calculator
    Project how your salary grows over time with compounded annual pay raises. See your final salary, total increase, percent gain, and total earnings.
  • Present & Future Value Algebra Calculator
    Solve for present value or future value using FV = PV(1+r)ⁿ. Enter amount, rate per period, and number of periods to get instant results.
  • Solve Compound Interest for Rate or Time
    Solve the compound interest formula for the unknown interest rate or time. Enter principal, future amount and compounding frequency to find r or t.
  • Straight-Line Depreciation Calculator
    Calculate straight-line (linear) depreciation: annual expense, accumulated depreciation, and book value of an asset after any number of years.
  • Effective Annual Rate (APY) Calculator
    Convert a nominal annual interest rate into the effective annual rate (APY) using the compounding formula APY = (1 + r/n)^n − 1.
  • GST Percentage Calculator
    Free GST calculator to add or remove GST at any percentage. Enter an amount and rate to get the net price, GST amount, and gross total instantly.
  • Sales Tax Backed Out of Total Calculator
    Back out the sales tax from a tax-inclusive total. Enter the gross amount and tax rate to find the net price and the tax included.
  • Stock Price Percent Gain/Loss Calculator
    Calculate the percentage gain or loss on a stock from its buy and sell price. Get profit per share and total profit instantly. Free and universal.
  • Percent Markup on Cost Calculator
    Calculate percent markup on cost from your item cost and selling price. Instantly see markup %, profit per unit, and profit margin.

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