1099 Tax Calculator

After subtracting business deductions and the 50% SE tax deduction from your gross 1099 income, the remaining amount is taxed at progressive federal income tax rates. The 2026 brackets for single filers under the One Big Beautiful Bill Act (OBBBA) are:

A freelancer earning $80,000 in 1099 income with $12,000 in deductions has a net SE income of $68,000. After the 50% SE tax deduction (~$4,804), the $16,100 standard deduction, and the 20% QBI deduction (~$9,419), the taxable income is roughly $37,677. That lands in the 12% marginal bracket, for about $4,273 of federal income tax — on top of the ~$9,608 of self-employment tax.

The standard advice is to set aside 25-35% of every 1099 payment, but your real number depends on your income level, state, and deductions. Self-employment tax alone takes 15.3% of net earnings; federal income tax adds 10-24% for most freelancers, and state income tax adds 0-13% on top. Here is what a single filer with no business expenses owes federally in 2026 (self-employment tax + federal income tax, after the standard and QBI deductions):

If your state taxes income, add its rate to the set-aside percentage — roughly 3-5 points in flat-tax states like Illinois or Pennsylvania, and up to 9-10 points for high earners in California or New York. The state pages linked above apply your state's exact rates. Business deductions pull the percentage down, which is why tracking expenses matters: every $1,000 in write-offs saves $250-$350 in tax for a typical freelancer. Run your own numbers in the calculator, then move that share of each payment into a separate tax account the day the client pays you.

If you expect to owe $1,000 or more in federal taxes for the year, the IRS requires you to make quarterly estimated tax payments using Form 1040-ES. Missing these deadlines triggers an underpayment penalty calculated at the federal short-term rate plus 3 percentage points. The 2026 due dates are:

• Q1: April 15, 2026 (income earned Jan–Mar)
• Q2: June 15, 2026 (income earned Apr–May)
• Q3: September 15, 2026 (income earned Jun–Aug)
• Q4: January 15, 2027 (income earned Sep–Dec)

Each payment should cover approximately 25% of your total expected tax liability for the year, including both income tax and self-employment tax. To avoid penalties entirely, you can use the safe harbor rule: pay at least 100% of last year's tax liability (110% if your AGI exceeded $150,000) spread across four equal installments. Use the quarterly tax calculator to determine the exact amounts for each payment period.

Maximizing deductions is the single most effective way to reduce your 1099 tax bill. Every dollar in legitimate business expenses directly reduces both your income tax and self-employment tax. The most impactful deductions for independent contractors include:

• Qualified Business Income (QBI) deduction: Made permanent by the 2025 OBBBA, this allows eligible self-employed filers to deduct 20% of qualified business income from their taxable income. A contractor with $70,000 in net business income could save over $3,000 in federal taxes. Calculate your savings with the QBI deduction calculator.
• Home office deduction: $5 per square foot (simplified method, up to 300 sq ft) or actual expenses for a dedicated workspace used regularly and exclusively for business.
• Business mileage: the 2026 rate is split — $0.725 per mile for miles driven January 1–June 30 (IRS Notice 2026-10) and $0.76 per mile for July 1–December 31 (Announcement 2026-11). At 10,000 business miles spread evenly across the year, that is a $7,425 deduction; this calculator uses the blended $0.7425/mile for 2026.
• Health insurance premiums: Self-employed individuals can deduct 100% of health, dental, and vision insurance premiums for themselves, their spouse, and dependents as an above-the-line deduction.
• Retirement contributions: SEP IRA contributions up to 25% of net self-employment income (max $72,000 in 2026) or Solo 401(k) with employee deferrals up to $24,500 plus employer contributions.
• Section 179 and bonus depreciation: Deduct up to $2,560,000 in qualifying equipment purchases immediately for 2026 (Rev. Proc. 2025-32). Bonus depreciation is 100% under OBBBA for additional assets beyond the Section 179 cap.

Keep detailed records for every deduction. The IRS requires documentation including receipts, mileage logs, and proof of business purpose. A 1099 tax estimator gives you a ballpark, but accurate record-keeping throughout the year prevents surprises at filing time and protects you in the event of an audit.