Free 1099 Tax Calculator 2026

What Is a 1099 Tax?

A 1099 tax is the bundle of federal taxes a self-employed individual owes on income reported by a payer on Form 1099-NEC or 1099-MISC. Unlike a W-2 employee — whose employer withholds income tax, Social Security, and Medicare from every paycheck — a 1099 contractor receives the gross amount and is personally responsible for both halves of payroll tax plus federal and state income tax.

The single largest line item is self-employment tax: 15.3 percent on the first 168,600 dollars (the 2026 Social Security wage base), then 2.9 percent on the remainder for Medicare, with an additional 0.9 percent Medicare surtax on income above 200,000 dollars for single filers or 250,000 dollars for joint filers. Federal income tax sits on top, calculated at your marginal rate based on total household income. For most freelancers earning between 30,000 and 150,000 dollars from 1099 work, the combined federal tax burden lands between 25 and 35 percent of net profit after deductions.

How to Calculate 1099 Taxes

Use this five-step process to estimate your annual 1099 tax bill before quarterly payment time:

1. Sum your gross 1099 income. Add every 1099-NEC, 1099-MISC, and 1099-K you receive. Also include income you earned but did not receive a form for — the IRS expects all self-employment income on Schedule C, not just amounts reported on forms.
2. Subtract ordinary and necessary business expenses. Track every legitimate deduction throughout the year: mileage at the IRS standard rate (70 cents per mile for 2026), home office (regular method or simplified 5 dollars per square foot up to 300 sqft), supplies, software, professional development, business insurance, half of business meals, and contractor payments. The result is your net self-employment income, the figure that gets taxed.
3. Calculate self-employment tax. SE tax is 15.3 percent on 92.35 percent of net self-employment income. The 92.35 percent reduction adjusts for the deductibility of the employer-equivalent half. So 50,000 dollars of net SE income generates approximately 7,065 dollars in SE tax. Above the Social Security wage base (168,600 dollars for 2026), the rate drops to 2.9 percent for Medicare only.
4. Calculate federal income tax. Take your net SE income, subtract half of your SE tax (above-the-line adjustment), add any other household income, then apply the federal income tax brackets to determine your liability. The 2026 brackets for a single filer: 10 percent up to 11,925 dollars, 12 percent to 48,475, 22 percent to 103,350, 24 percent to 197,300, and higher brackets above.
5. Estimate quarterly payments. Take your combined SE tax plus income tax liability, divide by four, and pay each quarter on April 15, June 15, September 15, and January 15. Underpayment of more than 1,000 dollars by year-end triggers an underpayment penalty calculated at the federal short-term rate plus 3 percent.

The calculator above gives you a fast estimate; for an exact figure including state tax and any tax credits, use the IRS Form 1040-ES worksheet or consult a CPA who works with 1099 contractors.