Calculators by jurisdiction

지방세법의 취득세 구조로 주택 매매 세액을 추정합니다.

양도가액에서 취득가액과 필요경비를 뺀 차익에 소득세법 누진세율을 적용해 주택 양도소득세를 추정합니다.

증여받은 재산에서 관계별 공제를 뺀 과세표준에 상속세 및 증여세법 제53조~제55조의 누진세율을 적용해 증여세를 추정합니다.

상속재산에서 채무와 배우자·일괄공제 등을 뺀 과세표준에 상속세 및 증여세법 제26조의 누진세율을 적용해 상속세를 추정합니다.

전세 기간이 끝났는데도 보증금이 돌아오지 않을 때 주택임대차보호법 제3조의2 구조로 지연이자를 계산합니다.

전세대출 이자와 자기자금 기회비용을 더한 전세의 연간 비용과 월세 총비용을 비교해 유불리를 계산합니다.

주택임대차보호법 제7조의2의 전월세전환율 구조로 보증금 차액을 월차임으로 환산합니다.

지방세법 제111조·제112조 구조로 주택 재산세를 추정합니다.

주택임대차보호법 제7조의 차임 증액 5% 상한을 기준으로 요청된 임대료가 한도 내인지 확인합니다.

근로기준법 제60조 기준으로 연차 발생 일수를 계산합니다.

근로기준법 제26조 기준으로 해고예고수당을 계산합니다.

국민연금·건강보험·장기요양·고용보험의 근로자 본인부담 보험료를 계산합니다.

최저임금법 기준으로 최저시급을 월 환산액으로 계산합니다.

근로기준법 제56조 기준으로 가산수당을 계산합니다.

고용보험법 제70조 기준으로 육아휴직급여를 계산합니다.

근로자퇴직급여 보장법 기준으로 퇴직금을 계산합니다.

고용보험법 제40조·제50조 기준으로 구직급여를 계산합니다.

근로기준법 제55조 기준으로 주휴수당을 계산합니다.

Estimate your 401(k) contributions: elective deferrals, the age 50+ and 60-63 catch-ups, employer match, and the total annual additions cap.

Estimate your child tax credit: the per-child amount, the MAGI phase-out at $50 per $1,000, and the refundable portion left after tax liability.

Compute your HSA contribution limit for self-only or family HDHP coverage, including the 55+ catch-up and monthly proration for partial-year coverage.

Find your Medicare IRMAA tier from MAGI and see the Part B and Part D monthly surcharges, annual cost, and the two-year lookback rule.

Estimate your required minimum distribution from your prior-year balance and the IRS Uniform Lifetime Table divisor, plus the still-working exception.

Estimate the incremental tax on a Roth conversion by comparing taxable income before and after the conversion across editable tax brackets.

See how much of your Social Security is taxable under IRC Section 86 using provisional income: AGI, tax-exempt interest, and half your benefits.

Estimate self-employed retirement contributions: elective deferrals plus about 20% of net profit, the SEP-IRA alternative, and the annual cap.

Compare a 529 plan's tax-free growth for education against a regular taxable account with an annual tax drag, including the non-qualified withdrawal penalty.

Estimate tax on investment sales: short-term gains at ordinary rates, long-term gains at 0%/15%/20% preferential brackets under IRC §1(h), plus the 3.

Compare the simplified home office deduction ($/sq ft, capped) against the regular method (actual expenses × business-use percentage) under IRC §280A.

Calculate your mileage deduction at the standard IRS rates for business, medical, moving, and charitable driving, and compare it to deducting actual expenses.

Estimate the Section 199A qualified business income deduction: 20% of QBI, limited by taxable income, W-2 wages and capital, with the SSTB phase-out.

Compute your quarterly estimated tax payments under the 90% or 100%/110% safe harbors, see the four due dates, and estimate the underpayment penalty under IRC §6654.

See how the state and local tax deduction cap limits itemized deductions, how much SALT is disallowed, and itemizing vs the standard deduction.

Estimate self-employment tax (Social Security and Medicare) on net self-employment earnings, including the additional 0.

Estimate your student loan interest deduction under IRC §221: the annual cap, the MAGI phase-out range, and how much interest survives as a deduction.

Calculate your monthly car payment, total interest and total cost from the vehicle price, trade-in, sales tax, down payment, rate and term.

See how savings grow with compound interest: future value, total contributions, interest earned and the effective annual yield at any frequency.

See how long a credit card balance takes to clear, the interest you will pay, and how much faster a larger fixed payment finishes it.

Estimate how long it takes to become debt-free and how much interest you will pay, given your total balance, average rate and monthly debt budget.

Estimate the home price you can afford from your income, debts and a target debt-to-income ratio, with the monthly payment and the loan it implies.

See what an amount of money will be worth in the future after inflation, and what a future amount is worth in today's dollars, at any rate and horizon.

See how long a loan takes to pay off at your current payment, the interest you will pay, and how much an extra monthly payment saves you.

Work out your monthly mortgage payment, total interest, and payoff cost from the loan amount, rate and term.

Estimate take-home pay from a gross salary: federal income tax, FICA, a state rate and deductions, shown per year, month and paycheck.

Project your retirement savings from your age, current balance, monthly contributions and expected return, and see the monthly income it could support.

Find the monthly amount needed to reach a savings goal from your current balance, an expected return and a deadline.

Calculate your body mass index from height and weight, see your WHO category, healthy weight range, and how much you would need to change.

Calculate your basal metabolic rate with the Mifflin-St Jeor equation and see the calories you burn at every activity level.

Estimate body fat percentage from neck, waist and hip measurements with the US Navy circumference method, plus fat mass and lean mass.

Estimate the calories you burn each day from your body and activity level, and see targets for losing, maintaining or gaining weight.

Compare four standard ideal body weight formulas for your height and sex, alongside the BMI-based healthy weight range.

Estimate a US car insurance premium from coverage level, driving record, annual mileage and vehicle age, with the monthly and annual cost shown.

Estimate how much life insurance you need using the DIME method — debt, income replacement, mortgage and education — minus what you already have.

Calculate your exact age in years, months and days between two dates, plus total days, weeks and hours and a countdown to your next birthday.

Calculate the sale price and your savings from a percent-off discount, including a second stacked discount and sales tax on the final price.

Calculate your GPA from up to six courses using credit hours and letter grades, with the credit-weighted method most US colleges use.

Calculate percentages three ways: what is X% of Y, what percent is X of Y, and the percent increase or decrease between two numbers.

Work out the tip, the total bill and the amount each person owes, from the bill, a tip percentage and the number of people splitting it.

Convert between metric and imperial units for length, weight, volume, area, speed and temperature, with common equivalents shown alongside.

Find the break-even point in units and dollars from fixed costs, price and variable cost per unit, plus contribution margin and margin of safety at a target volume.

Estimate gross and net monthly burn, runway in months from cash on hand, growth-adjusted runway, and how a hiring plan shortens the cash-out date.

Compare estimated federal tax for sole proprietorship, LLC, S-corp and C-corp from net profit, salary split and editable rates, including the double-tax risk.

Compute compound annual growth rate from a beginning value, ending value and time span.

Estimate post-judgment interest accrued on a civil judgment from the principal, statutory rate, judgment date and payoff date, with simple or compounded interest.

Calculate return on investment, annualised ROI, net gain, simple payback period in years and months, and discounted payback at the discount rate you choose.

Estimate a lawsuit filing deadline from the accrual date and your state's limitation period.

Compare a loan's APR against the maximum lawful rate for its type and see whether it appears to exceed the usury cap, with the excess interest cost flagged.