Quarterly taxes when nobody withholds for you.

Why 1099 work is different

No withholding means the payments are on you.

• A 1099 client never withholds. They pay the invoice in full and, from 2026, report it on Form 1099-NEC when they pay you $2,000 or more in a year (the threshold was $600 through 2025, per IRS Publication 1099). The income is taxable either way, form or no form.
• The $1,000 line. If you expect to owe at least $1,000 for the year after withholding and credits, the IRS expects estimated payments during the year, per the Form 1040-ES instructions. Most full time freelancers clear that line quickly.
• Deposits count when they land. For the cash basis accounting most freelancers use, a booking deposit is income in the year you receive it, not the year you do the work. That timing decides which quarter it belongs to.

Worked example

The safe harbor, in numbers.

• The prior year target. Last year’s total tax was $9,500 and your AGI was under $150,000, so the 100% rule applies: $9,500 for the year, $2,375 per deadline. Fixed the day you file, whatever 2026 does.
• The current year target. If this year is tracking toward $11,000 of tax, the 90% rule gives $9,900. The calculator recommends the lower of the two, so this freelancer pays $2,375 per quarter and stays penalty safe even though income rose.
• The four deadlines. April 15, June 15, and September 15 of 2026, then January 15 of 2027. Miss one and the underpayment penalty accrues on that quarter’s shortfall only, so a late catch up still helps. The full mechanics are in IRS Publication 505.
• Want the annual picture first? The self employment tax calculator estimates the full year bill this quarterly math divides.

FAQ

Common questions.

Do freelancers have to pay quarterly estimated taxes?

Generally yes if you expect to owe at least $1,000 in tax for the year after withholding and credits. No client withholds anything from a 1099 payment, so the quarterly payments are how the tax actually gets paid. Skipping them does not change what you owe in April; it adds an underpayment penalty on top.

What is the safe harbor rule for 1099 income?

You avoid the underpayment penalty if your estimated payments reach the lower of two targets: 100% of last year's total tax (110% if your prior year adjusted gross income was over $150,000), or 90% of what you will actually owe this year. The prior year target is the predictable path for freelancers because the number is fixed the day you file.

When are the 2026 quarterly payments due?

The four deadlines for tax year 2026 are April 15, June 15, and September 15 of 2026, and January 15 of 2027. When a date falls on a weekend or holiday it moves to the next business day.

Does a 1099-NEC change what I owe?

No. It is an information return, not a tax bill. From 2026, clients file one when they pay you $2,000 or more in a year (the threshold was $600 through 2025), but your income is taxable whether or not any form arrives, and plenty of smaller clients will never send one.

What if my freelance income is irregular?

The safe harbor based on last year's tax still works: the same fixed amount each quarter, no matter how lumpy this year is. The IRS also allows an annualized method on Form 2210 Schedule AI that matches payments to when income actually arrived, which this calculator does not model.

Educational estimate, not tax advice. Safe harbor rules per IRS Form 1040-ES and Publication 505 for tax year 2026. Talk to a CPA about your situation, especially with mixed W2 and 1099 income. This is the freelancer version of the quarterly estimated tax calculator; the photographer tax calculator is the other trade specific version.