1099 Tax Calculator: Self-Employment and Income Tax
A 1099 tax calculator estimates what you owe on contractor income, which is self-employment tax plus federal income tax on your profit after business expenses. The calculator above uses 2026 IRS figures and shows the number that matters most day to day: the share of each payment to move into a separate account the moment it lands.
On $50,000 of net profit, a single filer owes $7,064.78 in self-employment tax and $2,667.29 in federal income tax — $9,732.07 in total, about 19.5% of profit, or $2,433.02 per quarter.
How it's calculated
The starting point is not what the client paid you. It is your net profit: everything you invoiced, minus every legitimate business expense. That figure goes on Schedule C, and it is the number both taxes are calculated from.
Self-employment tax comes first. It is 15.3% — 12.4% Social Security plus 2.9% Medicare — applied to 92.35% of net profit rather than all of it, which makes the real rate 14.13% of profit. It is the tax that surprises people, because a W-2 employee only ever sees half of it on their payslip. The Social Security half stops once your combined wages and net earnings reach $184,500 in 2026; the Medicare half never stops.
Federal income tax comes second, and it is calculated on a smaller number. Half your self-employment tax is deducted above the line, then the standard deduction ($16,100 single for 2026) comes off, then the 20% qualified business income deduction if you qualify. Only what is left runs through the ordinary brackets.
That stacking is why the effective rate is lower than most people fear at modest income, and why the advice to "set aside 30%" is wrong in both directions. On $50,000 of profit the true figure is about 19.5%. Below roughly $17,400 of profit for a single filer with no other income, the standard deduction absorbs everything and federal income tax is zero — leaving only the 14.1% self-employment tax.
But the same advice fails the other way for anyone with a job. Freelance income stacks on top of your salary, so it is taxed at your top marginal rate from the very first dollar, while your W-2 withholding already covers the salary. Someone earning $80,000 at a job plus $20,000 freelancing needs to set aside 30.5% of the freelance money, not 19.5%. Enter your W-2 wages above and the tool computes the tax your freelance income actually causes rather than dividing your household bill by your side income.
None of this is withheld for you, so you pay it in four instalments through the year using Form 1040-ES. Our guide to budgeting with irregular income covers the due dates and the safe-harbour rule that switches off the underpayment penalty, and the self-employment tax calculator explains the Schedule SE math in full.
A worked example
Take a freelance designer with $58,000 of invoices and $8,000 of business expenses — software, a laptop, insurance, and an accountant. Net profit is $50,000.
Self-employment tax applies to 92.35% of that, or $46,175: 12.4% Social Security is $5,725.70 and 2.9% Medicare is $1,339.08, for $7,064.78 total. Half of that, $3,532.39, is deducted above the line, bringing income down to $46,467.61.
The $16,100 standard deduction and a $6,073.52 QBI deduction come off, leaving $24,294.09 of taxable income — $2,667.29 of federal income tax at the 10% and 12% rates. Total federal tax is $9,732.07, which is 19.5% of profit and $2,433.02 due each quarter.
Common mistakes to avoid
- Calculating tax on gross receipts instead of profit. You are taxed on what is left after business expenses, and for many contractors that gap is thousands of dollars.
- Using a flat 30% set-aside for everything. At $50,000 of profit with no other income the real figure is about 19.5%; with a $80,000 day job on top of $20,000 of freelance income it is 30.5%. One rule of thumb cannot cover both.
- Forgetting the deduction for half of self-employment tax. It is automatic and above the line, and it lowers the income the brackets apply to.
- Skipping the 20% QBI deduction. Most Schedule C filers below the §199A threshold qualify, and it is one of the largest deductions available to a contractor.
- Ignoring state income tax. Every figure here is federal only. Depending on where you live, add anywhere from nothing to more than 10%.
- Assuming a client who sends no 1099 has reported nothing. The 2026 filing threshold is $2,000 for a 1099-NEC, but your obligation to report starts at $400 of net earnings regardless.
Frequently asked questions
How much tax do I pay on 1099 income?
Self-employment tax of 15.3% on 92.35% of your net profit (an effective 14.13%), plus federal income tax on what remains after the deduction for half your self-employment tax, the standard deduction, and the QBI deduction. On $50,000 of net profit a single filer pays about $9,732 — roughly 19.5% of profit. The percentage rises with income and rises sharply if you also have W-2 wages, because freelance income is taxed on top of your salary.
How much should I set aside from each 1099 payment?
Between 20% and 25% of profit for a full-time freelancer with no other income, and closer to 30% to 35% if you have a day job, because side income stacks at your top marginal rate. Add your state's income tax rate on top. The most reliable approach is to move the percentage the calculator gives you into a separate savings account the day each payment clears, rather than trying to find the money in April.
Do I have to file if I made less than $2,000 and got no 1099?
Yes, if your net earnings from self-employment were $400 or more — that threshold, not the 1099 threshold, is what triggers the self-employment tax filing requirement. The $2,000 figure for 2026 is only the point at which the payer must file a Form 1099-NEC, and it went up from $600 this year. The IRS states plainly that gig income is reportable even when no information return is issued.
What expenses can I deduct from 1099 income?
Anything ordinary and necessary for the work: business mileage, a home office that is used regularly and exclusively for business, software subscriptions, equipment, professional insurance, accounting fees, business phone and internet at the business-use percentage, training, and supplies. Each deduction cuts self-employment tax and income tax at the same time, so for someone in the 12% bracket a deductible dollar is worth about 26 cents rather than 12.
When are quarterly taxes due for 1099 income?
Estimated payments are generally due four times a year — in April, June, and September, and in January of the following year. Paying at least 90% of the current year's tax, or 100% of last year's (110% if your prior-year AGI was over $150,000), switches off the underpayment penalty even if you end up owing more at filing. That safe harbour is the practical target for anyone whose income varies month to month.
Is a 1099 tax calculator accurate enough to pay from?
It is accurate enough to set aside from, which is its job. This one uses the real 2026 statutory figures and the actual Schedule SE method rather than a flat percentage, so the quarterly number is a sound basis for estimated payments. It does not model state or local tax, health-insurance or retirement deductions, or credits — all of which move the final figure — so treat the annual return, not the calculator, as the settlement.
Sources
We prioritize primary sources for rules, formulas, rates, limits, and definitions. See our calculator methodology and editorial policy.