Quarterly Estimated Taxes for Freelancers
Educational summary, not tax advice. United States federal rules for the 2026 tax year. State quarterlies follow similar mechanics but their own due dates and forms.
When you work for an employer, federal income tax and FICA come out of every paycheck before you see the money. When you freelance, no one does that for you — but the IRS still expects taxes to come in throughout the year, not in one big April check. That's what estimated quarterly payments are for. Skip them or underpay them, and the IRS adds an underpayment penalty plus interest when you file your return.
Who has to pay quarterlies
You are required to pay estimated taxes if you expect to owe at least $1,000 in federal tax for the year after subtracting any withholding and refundable credits. Almost every full-time freelancer with a meaningful client load hits that threshold. If your only income is freelance and you're earning more than roughly $5,000 net for the year, plan on paying quarterlies.
If you have a W-2 day job alongside freelance work, you can sometimes cover the freelance tax bill by increasing W-2 withholding through Form W-4 instead of writing quarterly checks. That route avoids the penalty machinery entirely. Most full-time freelancers don't have that option.
Due dates
Federal estimated payments are due four times a year on these schedule (slightly irregular, by IRS design):
- Q1 (Jan–Mar income): due April 15
- Q2 (Apr–May income): due June 15
- Q3 (Jun–Aug income): due September 15
- Q4 (Sep–Dec income): due January 15 of the following year
If a due date falls on a weekend or federal holiday, the deadline shifts to the next business day. Check the IRS calendar each year — the dates in 2026 follow this pattern with the standard weekend-shift adjustments.
How to pay
The easiest method is IRS Direct Pay at irs.gov/payments/direct-pay — free, takes about three minutes from your checking account, no enrollment required. You can also use EFTPS (Electronic Federal Tax Payment System) at eftps.gov, which is the IRS's full-featured payment portal but requires a one-time enrollment that takes a week. Mailing a check with Form 1040-ES still works but isn't worth the hassle in 2026.
When you pay through Direct Pay, choose "Estimated Tax" as the reason and "1040ES" as the form. Save the confirmation number — that's your only proof of payment until the IRS catches up its records.
How much to send
There are two reasonable methods. The first is "annualized current-year": estimate your total federal tax for the year (federal income tax + self-employment tax) and divide by four. This is what most software does and is the most accurate if your income is steady.
The second is the safe-harbor rule, which is what most freelancers actually use because it's simple and forgiving: pay at least 100 percent of last year's total tax (110 percent if last year's adjusted gross income exceeded $150,000), spread across the four quarterly payments. As long as you hit that number on time, the IRS will not charge an underpayment penalty even if your current-year income jumps and you owe a lot more in April.
Worked example. Last year you owed $18,000 in total federal tax (income + SE tax). Safe-harbor minimum: $18,000 ÷ 4 = $4,500 per quarter. Pay that on time each quarter and you avoid the penalty. If your current year ends up with $26,000 in tax owed, the difference comes due April 15 along with your return — no penalty, no interest, just a bigger final check.
A practical set-aside system
The "park 25 to 30 percent of every invoice in a separate savings account" rule does most of the work. Open a high-yield savings account at a bank that isn't your operating bank (that small extra friction stops you from raiding it). When a client payment hits, immediately transfer 25 to 30 percent into the tax account. By each quarterly due date, the money is there. You write the IRS check from the tax account, never from operations.
The exact percentage depends on your effective rate. A freelancer netting $60,000 with no state income tax may set aside 22 to 25 percent. A California freelancer netting $130,000 should set aside closer to 30 to 35 percent. Run a tax projection in mid-September each year (after Q3 is paid) and adjust your set-aside percentage for Q4 if income is wildly different from plan.
State quarterly taxes
Most states with an income tax also require quarterly estimated payments and have their own forms (California's is Form 540-ES; New York is IT-2105). The due dates are usually the same as federal, but not always — California's Q2 is due June 15 like federal, but its installment amounts aren't equal quarters (CA uses a 30/40/0/30 schedule). Check your state revenue department's site for the exact form and schedule.
If you skip a quarter
The IRS calculates an underpayment penalty per quarter you fell short, based on the federal short-term interest rate plus 3 percent. It's not catastrophic — for a $5,000 missed quarter the penalty is usually well under $200 — but it stacks across quarters, and it's an avoidable line item. The fix when you realize mid-year is to over-pay the next quarter to catch up, not wait until April.
Sources
- IRS — Estimated Taxes
- IRS — About Form 1040-ES
- IRS Publication 505, Tax Withholding and Estimated Tax.