The quarterly estimated tax due dates for the 2026 tax year are April 15, 2026; June 15, 2026; September 15, 2026; and January 15, 2027. These deadlines apply to self-employed individuals, freelancers, investors, and anyone else who earns income without sufficient tax withholding throughout the year.
The Full 2026 Quarterly Tax Schedule
Despite being called ‘quarterly’ payments, the IRS’s estimated tax periods aren’t evenly spaced three-month intervals. The Q1 payment, covering income earned January through March, is due April 15, 2026. Q2, covering only April and May, is due just two months later on June 15, 2026. Q3, covering June through August, is due September 15, 2026. The Q4 payment, covering September through December, isn’t due until January 15, 2027, giving that final period nearly four months to account for income earned in the last stretch of the year.
Who Needs to Pay Quarterly Estimated Taxes
Generally, anyone who expects to owe at least $1,000 in federal tax after subtracting withholding and refundable credits must make quarterly estimated payments. This commonly applies to self-employed individuals, freelancers, gig workers, landlords, investors with significant capital gains, and retirees drawing income without adequate withholding from sources like Social Security or retirement accounts.
How to Calculate Your Payments
The IRS provides Form 1040-ES, which includes a worksheet to help estimate your total tax liability for the year and divide it into four payments. Most tax professionals recommend using the ‘safe harbor’ rule to avoid penalties, generally paying at least 90% of your current year’s expected tax liability or 100% of your prior year’s tax bill, whichever is smaller, with that threshold rising to 110% for taxpayers whose adjusted gross income exceeded $150,000 the previous year.
Penalties for Missing a Payment
If you underpay or miss a quarterly deadline, the IRS charges interest on the shortfall based on the federal short-term interest rate plus 3 percentage points, compounded daily from the missed due date. Notably, this penalty is calculated separately for each quarter, meaning even if your total tax payments even out by year-end, you can still owe a penalty for underpaying in an earlier quarter.
How to Make a Payment
Estimated tax payments can be made online through IRS Direct Pay, via the IRS2Go mobile app, by phone, or by mailing a check with the payment voucher included in Form 1040-ES. If a due date falls on a weekend or federal holiday, the deadline automatically shifts to the next business day, though this rarely affects the standard April, June, September, and January dates.
Frequently Asked Questions
What are the quarterly tax dates for 2026? April 15, 2026; June 15, 2026; September 15, 2026; and January 15, 2027. Do I have to pay quarterly taxes if I’m a W-2 employee? Generally no, since employer withholding typically covers your tax liability, though you may need to make estimated payments if you have significant additional income from other sources. What happens if I file my return by early February instead of making the January payment? If you file your full 2026 tax return and pay any balance due by February 1, 2027, you generally don’t need to make the separate January 15, 2027 estimated payment.
The Bottom Line
Staying on top of the 2026 quarterly tax dates is one of the simplest ways for self-employed individuals and other non-withholding taxpayers to avoid IRS underpayment penalties throughout the year. Setting calendar reminders for April 15, June 15, September 15, and January 15 of the following year, and reviewing income changes periodically to adjust payment amounts, can help keep tax obligations manageable rather than facing a large, unexpected bill at filing time.