All calculators / Self-employed & tax
Self-employed tax calculators for freelancers and contractors
For freelancers, contractors and sole owners who pay their own tax. Estimate self-employment tax and the next quarterly payment, set an hourly or project rate that covers it, and compare a W-2 job with 1099 work.
Most used
Quarterly Estimated Tax CalculatorHow much to pay the IRS each quarter, from expected profit and an effective income tax rate you choose, with self-employment tax figured the IRS way.Freelance Hourly Rate CalculatorThe hourly rate that covers the pay you want, your business costs and self-employment tax, based on the hours you can bill.1099 Tax CalculatorHow much self-employment and income tax your 1099 income owes, and how much of each payment to set aside, using an effective income tax rate you enter.Self-Employment Tax CalculatorSocial Security and Medicare tax on self-employment profit, figured the way Schedule SE does, plus the half you deduct.E&O Insurance Cost Calculator for ConsultantsPut your professional liability (E&O) quotes side by side: the premium per month, as a share of revenue and per billable hour, cost per $100,000 of coverage, and what a year with a claim would cost under each.Mileage Reimbursement CalculatorMultiply business miles by the IRS standard mileage rate to get a reimbursement or deduction.
More self-employed & tax tools, A–Z
Consulting Day Rate CalculatorThe consulting day rate and hourly rate that cover your target pay, expenses and self-employment tax at a realistic utilization.Home Office Deduction CalculatorCompare the IRS simplified home office deduction ($5 per sq ft, up to 300 sq ft) with the regular method, from your square footage and home costs.Per Diem CalculatorLodging and meals per diem for a business trip from the GSA rates, with first and last days at 75%.Retainer Profitability CalculatorWhat a monthly retainer pays per hour once scope creep and admin time are counted, and the fee that would hit your target rate.S Corp Tax Savings CalculatorSee what an S corp election saves on 2026 self-employment and payroll taxes: self-employment tax on all your profit as an LLC or sole proprietor, against payroll tax on a reasonable salary as an S corp, minus the extra costs of running one.SEP IRA Contribution CalculatorYour maximum SEP IRA contribution as a self-employed owner or as a W-2 owner of your own corporation.Solo 401(k) Contribution CalculatorEstimate the most you can put into a solo 401(k) as a self-employed owner: employee deferral, catch-up and employer contribution.Solo 401(k) vs SEP IRA CalculatorEnter your net self-employment profit to see the most you can put into a SEP IRA and into a solo 401(k) for 2026, and the difference.W-2 vs 1099 CalculatorCompare a W-2 salary with benefits against a 1099 contract after FICA, self-employment tax and income tax, and find the contract pay that breaks even.
Self-employed tax formulas
| What it measures | Formula | Calculator |
|---|---|---|
| Self-employment tax | Net profit × 92.35% × 15.3% (12.4% Social Security up to the wage base + 2.9% Medicare) | Self-Employment Tax → |
| Deductible half of SE tax | Self-employment tax ÷ 2 | Self-Employment Tax → |
| Quarterly estimated tax | (SE tax + (net profit − half of SE tax) × your income tax rate − tax withheld) ÷ payments left this year | Quarterly Estimated Tax → |
| Freelance hourly rate | (Target pay + business expenses, grossed up for SE tax) ÷ billable hours a year | Freelance Hourly Rate → |
| Home office, simplified method | Office square feet × $5, up to 300 sq ft ($1,500 at most) | Home Office Deduction → |
| Mileage deduction | Business miles × IRS standard mileage rate + tolls and parking | Mileage Reimbursement → |