Quarterly Tax Due Dates: Every Deadline for the Current Tax Year

September 16, 2025. A Tuesday. Sarah logs into IRS Direct Pay and realizes she missed yesterday's quarterly tax deadline by exactly one day. The penalty is small (about $0.77 per day on her $4,127 payment), but it starts compounding immediately. And it will keep compounding until she pays, which she does within the hour.

Total damage: less than a dollar. Total stress: immeasurable. Total preventability: 100%.

Quarterly tax deadlines are fixed, predictable, and posted years in advance. Yet 14 million taxpayers got hit with underpayment penalties in 2023. The easiest tax problem to avoid is the one you can put on your calendar right now.

30-Second Summary: Quarterly estimated tax payments are due April 15, June 15, September 15, and January 15. Late payments accrue a 7% annual penalty from the due date. Use IRS Direct Pay to submit payments. Set calendar reminders two weeks before each deadline.

2025 Tax Year Quarterly Due Dates

These are the dates for tax year 2025 (income earned in 2025, with estimated payments due throughout 2025 and into early 2026):

Notice the quarters aren't equal. Q2 covers only two months (April and May). Q4 covers four months (September through December). Nobody designed this calendar for elegance.

For tax year 2026, the dates follow the same pattern: April 15, June 15, September 15, and January 15 of the following year. If any date falls on a weekend or federal holiday, the deadline moves to the next business day.

Why the Quarters Are Uneven

New freelancers often ask this. The reason is practical: the Q1 deadline (April 15) already coincides with the annual tax filing deadline. If Q2 started on April 1 and covered three months, its deadline would fall on July 15. But September is three months from July, putting Q3's deadline at October 15. That leaves only two and a half months between Q3 and Q4 (January 15).

The IRS chose to front-load the calendar instead, making Q2 short (two months) so the spacing between Q3 and Q4 is more manageable. It's a compromise, not a conspiracy.

How to Calculate What You Owe Each Quarter

The simplest approach: divide your estimated annual tax by four and pay equal installments.

For a complete walkthrough of the calculation, including worked examples and the safe harbor rules that protect you from penalties, see our detailed guide on estimated tax payments.

Quick reference for common income levels (single filer, no W-2 income, standard business expenses):

These are rough estimates. Your actual tax depends on deductions, filing status, state taxes, and other income. Use our self-employment tax calculator for a personalized estimate.

Late Payment Penalty Math

The underpayment penalty is calculated on each missed payment individually, running from the due date until the payment is made. The current rate is 7% annually, compounded daily.

Example: You owe $4,000 for Q2 (due June 15) and pay it September 15 (Q3 deadline). That's 92 days late.

$4,000 × 7% × (92 ÷ 365) = $70.58

Skip all four quarters and pay everything on April 15 of the next year? The cumulative penalty gets expensive. On $16,000 in annual estimated tax:

That $465 is essentially a loan from the government at 7% interest. In a world where high-yield savings accounts at Ally or Marcus pay 4-5%, you'd earn about $400 keeping the money yourself. You'd come out behind by $65, plus the stress of owing a lump sum.

But here's the real risk: most people who skip quarterly payments don't invest the money. They spend it. Then April arrives and they owe sixteen thousand dollars they don't have.

Payment Day Checklist

Every quarter, before you hit "submit":

• Confirm the payment amount matches your estimated quarterly obligation
• Verify you're paying for the correct tax year and quarter
• Select "1040-ES" as the payment type (not "balance due" or "extension")
• Double-check your bank routing and account numbers
• Save or screenshot the confirmation number
• Record the payment date and amount in your records
• If you also owe state estimated taxes, submit those separately to your state's tax authority

How to Set Up Recurring Payments

The IRS doesn't make recurring estimated payments easy for individuals.

If you have an existing EFTPS account: You can schedule all four payments in advance. This is the closest thing to auto-pay the IRS offers for estimated taxes.

If you don't have EFTPS access (new individual enrollments are currently suspended): Use IRS Direct Pay. You'll need to make each payment manually. Set a phone reminder two weeks before each deadline with a link to irs.gov/payments.

Alternative strategy: Some freelancers set up a quarterly automatic transfer from their business account to their tax savings account, then manually submit the payment a few days before each deadline. This automates the saving while keeping the payment step intentional.

What to Do If You Missed a Deadline

Pay immediately. Don't wait for the next quarter.

The penalty accrues daily. Paying one day late costs almost nothing. Paying three months late costs real money. There is no benefit to waiting until the next quarterly deadline to "catch up."

Go to irs.gov/payments, select "estimated tax" for the appropriate quarter, and submit. The sooner you pay, the sooner the penalty meter stops running.

If you missed multiple quarters, pay what you can now and the rest as soon as possible. The IRS will calculate the penalty automatically when you file your annual return.

Your Next Move

1. Add all four deadlines to your calendar right now. April 15, June 15, September 15, January 15. Set reminders two weeks before each.

2. Calculate your quarterly amount. Use last year's total tax divided by four (the safe harbor method) or estimate this year's income and run the numbers.

3. Bookmark IRS Direct Pay (irs.gov/payments) in your browser. It takes under five minutes per quarter.

4. Know how much you should be saving for your 1099 taxes so your savings account always has enough when each deadline arrives.

5. File your annual return on time. Missing the April 15 filing deadline triggers a separate (and larger) failure-to-file penalty of 5% per month on unpaid taxes, up to 25%.