Don’t miss these June 15 tax filing and paying deadlines

June 14, 2026
Photo by Glen Carrie on Unsplash


June 15 is Tax Day for millions of U.S. taxpayers. Those living and working abroad must file their 1040s. And those who owe estimated tax must make this year’s second payment.


Tomorrow — Monday, June 15 — is another Tax Day for millions of us.

The U.S. deadlines span the globe, but let’s start with the one that affects millions of us domestic filers.

Estimated tax time again: June 15 is the due date for the second estimated tax payment for this year. The amount is for earnings that weren’t subject to withholding that you (me, too!) received in April and May.

This includes both earned income from freelance or gig jobs, as well as unearned investment amounts and other payouts, such as prizes and gambling winnings. Some Social Security recipients who must pay tax on these government retirement benefits also pay that amount via estimated taxes.

The Internal Revenue Service prefers we estimated taxpayers make our added payments in four equal installments. That’s how these amounts came to be called quarterly (as in four) payments, since the IRS follows a different calendar as shown in the table below.

Payment #Due Date*For income received
1April 15Jan. 1 through March 31
2June 15April 1 through May 31
3Sept. 15June 1 through Aug. 31
4Jan. 15
of the next year
Sept. 1 through Dec. 31
*If the 15th is on a weekend or federal holiday
the estimated payment is due the next business day.

Regardless of the calendar curiosity, make your estimated tax payments on time or you could face penalties for late- and/or underpayment.

The IRS makes meeting the due dates easy. It accepts electronic estimated tax payments. You can make your e-payment via your IRS individual taxpayer account, tax software, or by credit or debit card using one of the two authorized e-payment services.

Note, however, that if you pay by plastic, the processors will tack on an added fee.

First Tax Day for some overseas filers: If you’re a U.S. citizen or resident alien, including those with dual citizenship, you must pay tax to Uncle Sam even if you’re living and working abroad.

This tax rule also applies to members of the U.S. military who are posted at facilities outside the United States or Puerto Rico.

That means that some border-bounding Americans could have two deadlines to meet tomorrow. In addition to the estimated tax deadline, it’s actual Tax Day for them.

The IRS gives foreign-based U.S. taxpayers an automatic two-month extension from the usual April 15 deadline to file their 1040 forms. U.S. Service personnel posted outside the United States or Puerto Rico are part of this extended filing time contingent.

This calendar math is more straightforward. Their later Tax Day is June 15. Again, that’s Monday. Tomorrow.

But one tax rule does remain the same for all filers, regardless of where they reside. This June 15 extension is for filing the proper tax return form, not for paying any due tax.

That means U.S. taxpayers in other countries who didn’t pay the tax they owe for the 2025 tax year by April 15 now also owe interest on that unpaid amount.

The good news, though, is that they won’t face a late-filing penalty if they file by June 15.


So, if you’re an American taxpayer in Paris (a la Gene Kelly’s struggling artist in the classic movie musical; poster pictured above) or anywhere else in the world, get to work on that filing. Your best bet at this deadline-nearing date is to, like most of us in the United States, file it electronically.

If you just can’t meet tomorrow’s due date, no worries. Just file IRS Form 4868 instead. That will give you until the regular Oct. 15 tax-filing extension deadline. Again, be sure to pay your due tax if you haven’t already.

Finally, as long-time readers of the ol’ blog have already guessed, June 15 is today’s By the Numbers figure.

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Don’t miss these June 15 tax filing and paying deadlines

June 14, 2026

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Tax Season 2026 Continues!

We made it. Tax Day 2025 is finally over. For most of us. When the filing season started on Jan. 26, millions who were expecting refunds filed immediately. Most of us got our returns to the Internal Revenue Service by April 15. But plenty of taxpayers also got extensions. They are looking at an Oct. 15 filing deadline.

Those procrastinating filers aren’t a problem. In fact, the IRS appreciates taxpayers who take time to fill out their 1040 forms correctly. It also is grateful that tax submissions are spread out a bit, especially now that the IRS is a leaner agency. Processing returns is easier when they arrive throughout the year instead of in massive bunches.

But enough about Uncle Sam’s tax collection issues. The focus now is on all y’all who filed for extensions, giving you another six months to complete your return. Since your new mid-October due date will be here before you know it, let’s get started now on meeting it.

The ol’ blog is here to help you finish up your extended Form 1040. You can start with January’s tax tips page, which has links to the rest of the year’s tips by-month collections. You also can peruse various tax categories for more tailored advice by clicking on the More Tax Posts drop-down menu at the top of this (and every) page.

And to make sure you don’t miss your new filing deadline, the count-down clock below will let you know just how much time you to file by Oct. 15. At the latest.e. (Note: I’m in the Central Time Zone, so adjust accordingly for where you live.)

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