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Quarterly Estimated Taxes for Freelancers in 2026: A Step-by-Step Guide

Last reviewed October 2026 by the 1099tax.app team. These tools give estimates, not tax or legal advice.

When you get a paycheck, your employer sends tax to the IRS for you every payday. When you freelance, nobody does that. The IRS still expects to be paid as you earn, not all at once in April. That's what quarterly estimated taxes are for. This guide explains who has to pay them, when, how much, and how to avoid the penalty, in plain language.

If you'd rather start with your own numbers, our Self-Employment Tax calculator works out your quarterly amounts for you.

Who has to pay estimated taxes?

According to the IRS, you generally need to make estimated payments if you expect to owe $1,000 or more in tax when you file, after subtracting withholding and refundable credits. That includes:

  • Freelancers, consultants and independent contractors paid on Form 1099-NEC
  • Sole proprietors and single-member LLC owners
  • Partners and S-Corp shareholders who receive profit without withholding
  • Anyone with sizable interest, dividends, capital gains, rental income or alimony and no withholding to cover it

You may not have to pay if you had no tax liability for the prior year, were a U.S. citizen or resident for the whole year, and that year covered 12 months.

Estimated tax covers both income tax and self-employment tax. For 2026, SE tax is 15.3% on 92.35% of your net profit, with the Social Security portion capped at $184,500 of combined wages and SE earnings (SSA).

The 2026 due dates

For the 2026 tax year, IRS Publication 505 lists four payment periods:

Income earnedPayment due
January 1 – March 31April 15, 2026
April 1 – May 31June 15, 2026
June 1 – August 31September 15, 2026
September 1 – December 31January 15, 2027

Notice the periods aren't equal: the second "quarter" is only two months. If a due date falls on a weekend or holiday, the next business day counts. And you can skip the January 15 payment if you file your 2026 return by January 31, 2027 and pay everything you owe.

How much to pay: the safe harbors

You don't have to predict your tax exactly. You just have to pay enough to land in a safe harbor. You avoid the underpayment penalty if your withholding plus timely estimated payments total at least the smaller of:

  1. 90% of your 2026 tax, or
  2. 100% of your 2025 tax, or 110% if your 2025 AGI was over $150,000 ($75,000 if married filing separately).

The prior-year safe harbor is popular because it's a known number. Take last year's total tax, multiply by 100% or 110%, and divide by four. If your income is rising, you'll owe the rest in April, but without a penalty.

A worked example

A freelance photographer's 2025 return shows total tax of $14,000 and AGI of $95,000. In 2026 business is booming, and they expect about $130,000 in profit.

  • Prior-year safe harbor: 100% × $14,000 = $14,000, or $3,500 per payment.
  • Paying $3,500 on each of the four due dates protects them from any penalty, even though their 2026 tax will be higher.
  • Their actual 2026 tax will probably be closer to $27,000. The difference, about $13,000, will be due by April 15, 2027. They should save it in a separate account as the year goes on.

If their 2025 AGI had been $160,000, the safe harbor would have been 110% × $14,000 = $15,400, or $3,850 per payment.

Uneven income? Use the annualized method

If most of your income arrives late in the year, equal payments can feel unfair. They aren't required. The annualized income installment method (Form 2210, Schedule AI) lets you base each payment on what you actually earned through that period. You fill it out when you file, and it can reduce or remove the penalty for the early quarters.

How to pay

  • IRS Online Account, where you can also see the payments you've made
  • IRS Direct Pay, free bank transfers from IRS.gov
  • EFTPS, the Treasury's payment system
  • Debit or credit card, through approved processors (fees apply)
  • Check by mail with a Form 1040-ES voucher

You can also pay weekly or monthly if that's easier, as long as enough has been paid by each due date.

If you also have a job: increasing withholding on your W-2 paycheck with a new Form W-4 counts too. A useful extra is that withholding is treated as paid evenly through the year, even if you increase it in December.

Don't forget your state

Most states with an income tax have their own estimated payment rules, often with the same due dates. Check your state revenue department, and remember that a move mid-year can mean payments to two states.

Common mistakes

  1. Saving only for income tax. SE tax alone is about 14% of profit.
  2. Paying it all in January. The penalty is figured per period, so late payments for earlier periods still count as late.
  3. Missing the 110% rule after a high-income year.
  4. Forgetting the second period is short. The June 15 payment covers just April and May.
  5. Mixing business and personal accounts, which makes it hard to know your real profit.
  6. Ignoring a new 1099 threshold. Starting with 2026 payments, clients generally issue Form 1099-NEC only at $2,000 or more, but every dollar is still taxable.

Frequently asked questions

It works like interest on the amount you underpaid, for the time it was late. The IRS figures it at a rate set each quarter.

Related tools

Sources

These tools give estimates, not tax or legal advice.

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