Quarterly Estimated Taxes for Freelancers (2026)

Quick answer: Quarterly estimated taxes are payments self-employed people make to the IRS during the year because no tax is withheld from their income. For 2026, the federal due dates are April 15, June 15 and September 15, 2026, and January 15, 2027. You generally must pay if you expect to owe $1,000 or more, and you avoid penalties by paying at least 90% of this year's tax or 100% (sometimes 110%) of last year's.

If you invoice clients rather than receive a paycheck, quarterly estimated taxes are part of running your business. This guide covers who has to pay, the 2026 and 2027 deadlines, the safe harbor rules, how to calculate and pay with Form 1040-ES, and what happens if you fall behind. Good records make all of it easier, so keep every invoice you issue; our US invoice generator produces numbered PDFs you can file by quarter.

Important: This is general information, not tax advice. Thresholds, due dates, penalty rates and safe harbor rules are set by the IRS and Congress and can change. Check the current IRS estimated taxes guidance and Form 1040-ES instructions, or speak with a qualified tax professional, before relying on any figure here.

What are quarterly estimated taxes?

The US tax system is pay-as-you-go. Employees pay through withholding from each paycheck. Freelancers, independent contractors and sole proprietors usually have nothing withheld, so the IRS expects them to send payments during the year instead. Those payments cover:

• Federal income tax on your business profit and other income.
• Self-employment tax, the Social Security and Medicare contributions an employer would otherwise split with you.
• Any other tax you will owe on your return, such as tax on investment income, if it isn't covered by withholding.

Despite the name, the four payment periods are not equal quarters, which catches people out.

Who has to pay quarterly estimated taxes?

According to the IRS, individuals, including sole proprietors, partners and S corporation shareholders, generally have to make estimated payments if they expect to owe $1,000 or more in tax when they file, after subtracting withholding and refundable credits. In practice, most freelancers with a profitable year meet that test. You may not need to pay if:

• you also have a job and increase your W-4 withholding enough to cover your freelance income, or
• you had no tax liability for the prior full 12-month year and were a US citizen or resident for all of it.

If your freelance work is new, our guide to W-9 and 1099 forms explains the paperwork clients will ask for and send you.

2026 and 2027 estimated tax due dates

Income earned	2026 tax year due date	2027 tax year due date
January 1 – March 31	April 15, 2026	April 15, 2027
April 1 – May 31	June 15, 2026	June 15, 2027
June 1 – August 31	September 15, 2026	September 15, 2027
September 1 – December 31	January 15, 2027	January 15, 2028 falls on a Saturday, so expect the next business day*

*The IRS rule is that a payment due on a weekend or legal holiday is on time if made on the next business day. Monday, January 17, 2028 is Martin Luther King Jr. Day, so the final 2027 payment would be expected on Tuesday, January 18, 2028. The IRS had not published the 2027 Form 1040-ES at the time of writing, so confirm the date on IRS.gov.

The January payment exception

You can skip the fourth payment if you file your full-year return and pay all the tax due by January 31 of the following year. For the 2026 tax year, January 31, 2027 is a Sunday, so the practical deadline is Monday, February 1, 2027. This only helps if your records are ready that early.

Safe harbor rules: how to avoid the penalty

You don't have to predict your tax exactly. You generally avoid the underpayment penalty if you owe less than $1,000 after withholding and credits, or if your withholding plus timely estimated payments are at least the smaller of:

• 90% of the tax on your current-year return, or
• 100% of the tax shown on your prior-year return (which must cover a full 12 months).

If your prior-year adjusted gross income was more than $150,000 ($75,000 if married filing separately), the prior-year test rises to 110%.

The prior-year test is the freelancer's friend: last year's tax is a known number, so you can divide it by four and pay that amount each quarter, even if this year turns out bigger. You will still owe the balance in April, but without a penalty for underpaying during the year.

Worked example: calculating your quarterly payments

Maya is a freelance designer filing single. Her total federal tax on her 2025 return was $14,000 and her 2025 AGI was $95,000. For 2026 she expects a bigger year, with a total tax of about $18,500.

Safe harbor test	Calculation	Annual amount
90% of 2026 tax	$18,500 × 90%	$16,650
100% of 2025 tax (AGI under $150,000)	$14,000 × 100%	$14,000
Required annual payment (smaller figure)		$14,000
Each installment	$14,000 ÷ 4	$3,500

Maya pays $3,500 on each of April 15, June 15 and September 15, 2026, and January 15, 2027. When she files her 2026 return in April 2027 she owes the remaining $18,500 − $14,000 = $4,500, but no underpayment penalty, provided each installment was on time. She should still set the $4,500 aside during the year.

Estimating self-employment tax

Self-employment tax is 15.3% on net earnings from self-employment: 12.4% for Social Security, up to that year's wage base, and 2.9% for Medicare, with no cap. Net earnings are 92.35% of your net profit. The Social Security wage base is $184,500 for 2026. An additional 0.9% Medicare tax applies above certain income thresholds.

For a net profit of $80,000: $80,000 × 92.35% = $73,880; $73,880 × 15.3% = $11,303.64 of self-employment tax, before any income tax. You can deduct half of it when working out your adjusted gross income. That is why freelancers are often surprised by their first tax bill.

How to pay estimated taxes

• IRS Direct Pay from a bank account, free.
• Your IRS Online Account, which also shows the payments you have made.
• EFTPS, the Treasury's electronic payment system, useful if you schedule payments in advance.
• Debit or credit card through an IRS-approved processor, which charges a fee.
• Check or money order with the Form 1040-ES payment voucher.

Choose the estimated tax option and the correct tax year each time. A payment applied to the wrong year is one of the most common and annoying errors to untangle. The IRS also allows more frequent payments (weekly or monthly) as long as enough is paid by each due date.

Penalties for underpaying or paying late

If you underpay a quarter, the IRS calculates a penalty on the shortfall for the number of days it was unpaid, using the federal underpayment interest rate, which is reset every quarter. For the fourth quarter of 2026 the IRS set that rate at 7% a year for individuals. The penalty is figured on Form 2210 (the IRS will usually calculate it for you), and it can apply even if you are due a refund when you file.

The IRS can waive the penalty in limited cases, such as a casualty, disaster or other unusual circumstance, or if you retired after age 62 or became disabled and the underpayment was due to reasonable cause.

Uneven income? Use the annualized method

If most of your income arrives late in the year (a big December project, for example), equal payments may overpay early. The annualized income installment method on Form 2210 lets you match payments to when you actually earned the income. It takes more work, so many freelancers ask a preparer to do it.

A simple system for freelancers

1. Open a separate tax savings account and move a fixed share of every client payment into it the day it arrives.
2. Track income by invoice. A sequential invoice list (see our invoice tracker spreadsheet guide) makes each quarter's figure easy to find. Record income when it is received if you use the cash method.
3. Track deductions as you go. Every legitimate expense lowers both income tax and self-employment tax; see self-employed tax deductions.
4. Put the four dates in your calendar with a reminder a week before each.
5. Review at each payment. If the year is going much better or worse than expected, adjust the remaining installments.
6. Reconcile against 1099s at year end. Forms you receive (1099-NEC from clients, 1099-K from payment platforms) should match your own records; our guide to the 1099-K threshold explains when platforms report.

Don't forget state estimated taxes

Most states with an income tax also expect estimated payments from self-employed residents, often on the same dates as the IRS but not always, and with their own thresholds and penalties. A handful of states have no individual income tax. Check your state revenue department's website, and if you work in several states, ask a preparer which ones you owe.

Next step

Find the total tax on last year's Form 1040, check whether your AGI was above $150,000, and divide the safe harbor amount by four. Schedule the next payment in IRS Direct Pay today, then make sure every invoice from now on is numbered and saved, for example with the minimal invoice template and the invoice number generator, so next quarter's figures are ready in minutes.