Your second-quarter estimated tax payment for 2026 is due Monday, June 15, 2026 — and unlike some years, that date does not get pushed to the next business day, because June 15 falls on a weekday. If you're self-employed, freelance, or run a small business, this payment covers the income you earned from April 1 through May 31, 2026, and the IRS expects it on time even though you won't file a return for any of it until next April.

The good news: you can pay in about five minutes from your phone, with no account to set up, using IRS Direct Pay. This guide walks through the exact Direct Pay steps for a 1040-ES payment, when you'd want EFTPS instead, how much to send if you're not sure of the number, and what the penalty actually costs if you miss the deadline.

First, Confirm You Actually Owe a Q2 Payment

Estimated taxes exist because the U.S. tax system is "pay as you go." When you have a W-2 job, taxes come out of every paycheck. When you're self-employed — or you have income with no withholding (rental income, investment gains, a 1099 side gig) — nobody is holding tax back for you, so the IRS asks you to send it in four times a year.

You generally need to make estimated payments if you expect to owe $1,000 or more in tax for 2026 after subtracting any withholding and refundable credits. If your only income is a regular W-2 job with enough tax withheld, you can usually skip this entirely. But if you freelance, contract, run a shop, or took a big capital gain this spring, June 15 is your deadline.

One quick reality check before you pay: the second-quarter window is the shortest of the year. Q1 covered three months (January–March), but Q2 covers only two (April–May). People who forget this sometimes underpay in June and get surprised. If your income was steady, your Q2 payment should be roughly the same size as Q1 — not smaller just because there are fewer months on the calendar.

How to Pay With IRS Direct Pay (Step by Step)

IRS Direct Pay is the simplest way to pay as an individual. It's free, it pulls straight from your checking or savings account, and there's nothing to enroll in. Go to IRS.gov/payments and choose "Pay now with Direct Pay," or go directly to directpay.irs.gov. Then work through the five screens:

Step 1: Choose the reason and the form

Under "Reason for Payment," select Estimated Tax. Under "Apply Payment To," select 1040ES. Under "Tax Period for Payment," choose 2026. Getting this combination right is what tells the IRS this is a quarterly estimate — not a balance due on an old return.

Step 2: Verify your identity

Direct Pay confirms who you are by matching a past return. Pick a tax year you've already filed (for example, 2024), then enter your filing status, name, Social Security number, and address exactly as they appear on that return. A mismatched middle initial or an old address is the most common reason this step fails.

Step 3: Enter the amount and bank details

Type the dollar amount, then enter your bank routing and account numbers. You can pay today or schedule the payment up to 365 days in advance — handy if you want to line up all four 2026 quarters at once. To count as on time, just make sure the payment date is June 15 or earlier.

Step 4: Review, sign, and submit

Check every field, agree to the authorization, and submit. You can also enter your email to get a payment confirmation.

Step 5: Save your confirmation number

This is the step people skip and later regret. Direct Pay gives you a confirmation number the moment your payment goes through. Screenshot it or print the page. If the IRS ever sends a notice claiming you paid late, that confirmation number — with its date — is your proof. You can also look the payment up later on Direct Pay using your SSN and that number.

Direct Pay vs. EFTPS — Which Should You Use?

Direct Pay isn't the only free option. The other is EFTPS (the Electronic Federal Tax Payment System). They both pull from your bank for free, but they're built for different people. Here's the honest comparison:

The deciding factor right now is time. EFTPS requires enrollment, and the PIN arrives by mail several business days later — so if June 15 is only a few days away and you're not already enrolled, you can't realistically use EFTPS for this payment. Use Direct Pay (or a card) today, and consider enrolling in EFTPS afterward for future quarters if you like having every payment saved in one dashboard.

Not Sure How Much to Pay? Use the Safe Harbor

If your income swings month to month, calculating an exact Q2 number is hard. The IRS gives you a shortcut called the safe harbor: if you pay at least a set baseline across the year, you won't owe an underpayment penalty even if you end up owing more at filing time. You meet the safe harbor by paying, through withholding and estimates combined, the smaller of:

• 90% of your 2026 tax (your best estimate of this year's total), or
• 100% of your 2025 tax — the total tax line from the return you just filed. This jumps to 110% if your 2025 adjusted gross income was over $150,000 ($75,000 if married filing separately).

The prior-year method is the easy one because it's a fixed, known number. Take your 2025 total tax, multiply by 100% (or 110% if you were a higher earner), and divide by four. That's a quarterly amount that keeps you safe regardless of how 2026 turns out. So a typical Q2 payment is simply one-quarter of last year's tax, minus anything already withheld from other income.

Notice the uneven calendar: Q2 is two months, Q3 is three, and Q4 stretches across four. That's why the dollar amounts don't always line up evenly — it's the dates that are fixed, not equal spacing.

Prefer to Pay by Mail? Watch the Postmark

You don't have to pay online. You can still mail a check with a Form 1040-ES voucher (download the 2026 package from IRS.gov, print the Q2 voucher, and write your Social Security number and "2026 Form 1040-ES" on the check). But if you go this route close to the deadline, the rule that matters is the postmark, not the day the IRS opens the envelope.

A payment is considered on time if it's postmarked by June 15. For real peace of mind, send it certified mail with a return receipt at the post office counter. The certified mail receipt is dated proof of mailing — the paper equivalent of an online confirmation number — and it's the single best defense if a check gets lost or delayed in processing. Don't just drop it in a mailbox on June 15 and hope for the best.

What Happens If You Miss June 15

Missing the deadline isn't a flat fine — it's interest. The IRS charges an underpayment penalty that works like simple interest on whatever you should have paid, running from June 15 until you actually pay. The rate is the federal short-term rate plus three points; in recent quarters that's worked out to around 7% per year, and the IRS resets it every quarter.

What that means in practice: a missed or short $2,000 Q2 payment costs only a few dollars a week, not a catastrophe — but it does compound, and it stacks across every quarter you fall behind. The cleanest fix if you realize you're late is to pay as soon as possible to stop the clock, since the penalty only accrues while the money is unpaid. You don't need to file anything special to "ask permission" to pay late; just make the payment through Direct Pay and the IRS will calculate any small penalty when you file your return on Form 2210.

And remember the safe harbor above — if you've already paid 100%/110% of last year's tax across your quarters, you generally owe no underpayment penalty at all, even if your 2026 income turns out much higher than expected. That's the whole point of using the prior-year number.

Frequently Asked Questions

Bottom Line — What to Do Before June 15

If you have self-employment or other untaxed income, here's the fastest path to a clean, on-time Q2 payment:

1. Pick your number — one-quarter of last year's total tax (×1.1 if you were a higher earner) is the safe-harbor shortcut
2. Open Direct Pay at directpay.irs.gov and choose reason Estimated Tax → form 1040ES → year 2026
3. Schedule it for June 15 or earlier and enter your bank details
4. Save the confirmation number as proof of on-time payment
5. Consider scheduling Q3 and Q4 now while you're in there, so you never scramble again

This article is general information, not personalized financial or tax advice. Tax rates, deadlines, IRS penalty rates, and payment procedures can change. Verify the current details at IRS.gov and consult a licensed CPA or tax professional about your specific situation before filing or paying. Information is current as of June 2026.