Quarterly Estimated Taxes for Freelancers

By Reese Calloway · Updated 2026-09-06

Worked scenarios are illustrative composites. Our editorial pen name and method.

The penalty for doing nothing

U.S. income tax is pay-as-you-go. If withholding and credits will not cover the required amount, estimated payments may be necessary, including for self-employment income. Some freelancers also have wage withholding, and exceptions apply. The IRS estimated-tax guidance explains eligibility and payment periods. Paying the full balance at filing does not necessarily eliminate an earlier underpayment penalty.

The good news is that “estimated” is the operative word. You’re not filing four mini-returns. You’re sending four reasonable payments toward a total you’ll reconcile later.

The 2026 payment dates

The payments don’t follow neat three-month blocks. For calendar-year 2026, Form 1040-ES gives these dates:

| Payment | Regular due date | |—|—|—| | 1st | April 15, 2026 | | 2nd | June 15, 2026 | | 3rd | September 15, 2026 | | 4th | January 15, 2027 |

The intervals are not equal calendar quarters. Confirm the exact dates each year rather than reusing this table.

For 2026, the instructions say the January 15 payment is not required if you file the 2026 return by February 1, 2027 and pay the entire balance with the return.

What “safe harbor” means, and why it’s your friend

The word estimated sounds like a trap — how can you possibly know your full-year tax in April? The federal worksheet generally compares two annual targets and uses the smaller:

• 90% of the tax shown on this year’s return, or
• 100% of the tax shown on last year’s full-year return.

The prior-year percentage becomes 110% for certain higher-income taxpayers (for 2026, prior-year AGI over $150,000, or $75,000 if married filing separately). Special rules also apply to farming and fishing income.

Then subtract current-year withholding and estimated withholding. Prior-year withholding does not carry forward as a current-year payment. A first year of self-employment can still use the prior-year-tax comparison because it is based on the prior return’s total tax, not on whether that tax came from freelance work. If the prior-year total tax was zero and the IRS’s full-year residency conditions are met, a separate exception may apply.

Use the current Form 1040-ES worksheet, especially lines 12 through 15, instead of treating “last year’s tax divided by four” as a universal answer.

Working out what to actually send

Each payment needs to cover both halves of your obligation: your income tax and your self-employment tax. People routinely remember the first and forget the second, which is how a “saved enough” feeling turns into a shortfall.

Start with the self-employment piece, because it’s the predictable part. Run your expected net profit through the self-employment tax calculator — it shows the per-quarter self-employment share directly. Then add your estimated income tax on top of that, and divide the combined total across the remaining payments. The calculator deliberately stops at self-employment tax, so don’t mistake its quarterly figure for your whole installment; it’s the floor, not the answer.

The habit that makes all of this painless

Keep the expected payment dates and amounts in your cash-flow plan. A separate reserve can help identify money assigned to tax, but its adequacy depends on a current calculation and timely payments, not the account label.

If you haven’t set that system up, our guide on how much to set aside for tax walks through the separate-account trick and how to pick a holding percentage. Pair that habit with the safe-harbor target and the four dates stop being deadlines you dread and become transfers you barely think about.

A simple starting plan

1. Complete the current Form 1040-ES worksheet using expected income, deductions, credits, and all taxes.
2. Compare 90% of current-year tax with the applicable percentage of prior-year tax.
3. Subtract current-year withholding and any prior-year overpayment elected for this year.
4. If the remaining expected balance is under the worksheet’s $1,000 test, no estimated payment may be required.
5. Otherwise follow the installment dates; if income is uneven, evaluate the annualized income installment method rather than assuming four equal payments.
6. Recalculate after material income changes and check state rules separately.

This is general information about U.S. federal estimated taxes, not tax or filing advice. The figures and dates were checked against the 2026 Form 1040-ES on 2026-08-09. Later IRS updates, your state, and your full return can change the result; use the current form or a qualified tax professional before relying on it.