How much tax do you owe on 1099 income?
Work out your 2026 self-employment tax, your federal income tax, and what to set aside each quarter. Every rule here comes straight from the IRS, for the 2026 tax year, and we show which document each number came from.
Typical range $14,983 – $16,648
- Self-employment tax (Social Security + Medicare)$11,304
- Federal income tax$5,344
- Total$16,648
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§ 02 What you owe, and what to set aside
Federal tax only, tax year 2026. The figure shown assumes you take the standard deduction and claim no retirement contribution, no self-employed health insurance premium and no home-office deduction. Each of those lowers the bill and none of them raises it, so treat the headline as the top of your likely range. The low end shown is simply the headline minus 10 percent. That 10 percent is our own rough allowance for the deductions above, not a figure we calculated, and a solo 401(k) on its own can cut a good deal more than that. Separately, and do not confuse the two: the IRS safe harbour says you avoid an underpayment penalty if you PAY at least 90 percent of your 2026 tax during the year. That is a rule about payments, not an estimate of what you owe.
Where the money goes
By the numbers
- Self-employment tax is 15.3 percent: 12.4 percent for Social Security plus 2.9 percent for Medicare.
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It applies to 92.35 percent of your net profit, not to all of it, and not to your gross income. Skipping that 92.35 percent step is the single most common error in 1099 calculators, and on an $80,000 profit it overstates the tax by $936. - For 2026 the Social Security portion stops at $184,500 of earnings (IRS Pub 15 and Form 1040-ES).
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Once your net profit passes about $199,783 the 12.4 percent simply switches off, and only the uncapped 2.9 percent Medicare portion continues. The maximum Social Security part of SE tax is $22,878. - The 20 percent QBI deduction still exists in 2026 and is now permanent, but it is not 20 percent of your profit.
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It is reduced by the half-of-SE-tax deduction, then capped at 20 percent of your TAXABLE income, which for a solo filer taking the standard deduction usually binds first. On our default inputs, naive maths gives $16,000 and the correct deduction is $11,650. - The 0.9 percent Additional Medicare Tax starts at $200,000 for a single filer and $250,000 married filing jointly. Those thresholds are statutory and have never been adjusted for inflation. They are the same numbers as in 2013, so each year they quietly reach further down.
- Quarterly estimated payments are due 15 April 2026, 15 June 2026, 15 September 2026 and 15 January 2027. Note that the last one lands in the following calendar year, which is the date people miss most.
What is sourced here, and the one number that is ours. Every tax rule and every dollar threshold on
this page is the IRS's own, for the 2026 tax year, read out of the primary document rather than a summary:
the rates and the wage base from Form 1040-ES (2026), the brackets, standard deduction and QBI thresholds from Rev. Proc.
2025-32, the mileage rate from Notice 2026-10.More
Where every number above comes from
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IRS
IRS Rev. Proc. 2025-32 (2026 brackets, standard deduction, QBI)
irs.gov -
IRS
IRS Form 1040-ES (2026) (SE tax worksheet, wage base, due dates)
irs.gov -
IRS
IRS Topic no. 554, Self-employment tax
irs.gov -
IRS
IRS Form 8959 (Additional Medicare Tax)
irs.gov -
IRS
IRS Notice 2026-10 (2026 standard mileage rate)
irs.gov -
IRS
IRS Publication 15 (2026) (Social Security wage base)
irs.gov
What this assumes, and where it could be wrong
Every one of these is a place the number could be off. They are here because you should be able to check our working, not because we are hedging.
WHERE WE LOOKED. This page is computed from statute rather than from a survey, so there is no group average anywhere in it: the rates, the thresholds and the deduction all come from the Internal Revenue Code and IRS publications, and every figure is reproducible from them. That is why this is the one page here with no sourcing caveat: nothing on it is an average of anybody.
Every rule here is the IRS's, for the 2026 tax year, taken from the primary document rather than a summary page.
Self-employment tax is computed exactly as the Form 1040-ES (2026) worksheet computes it: 92.35 percent of net profit, then 12.4 percent Social Security up to the $184,500 wage base and 2.9 percent Medicare with no cap.
The QBI deduction assumes you are a sole proprietor filing Schedule C with no employees and no significant depreciable equipment.
Whether your work is a specified service trade or business (an SSTB) changes nothing below the threshold, where everyone gets the full 20 percent.
The new $400 minimum QBI deduction is applied when you have at least $1,000 of qualified business income, which is also the new eligibility floor: below $1,000 of qualified income the Rev.
If you enter W-2 wages, the result is the extra tax your freelance income causes, not your whole household bill.
Federal only. No state income tax, no city tax, no state business or franchise tax. We would rather leave a gap you can see than fill it with a number we invented.
