{"id":41340,"date":"2026-09-16T06:10:57","date_gmt":"2026-09-16T11:10:57","guid":{"rendered":"https:\/\/www.hrblock.com\/tax-center\/?p=41340"},"modified":"2026-09-16T18:11:25","modified_gmt":"2026-09-16T23:11:25","slug":"miss-tax-extension-deadline","status":"publish","type":"post","link":"https:\/\/www.hrblock.com\/tax-center\/irs\/deadlines-and-extensions\/miss-tax-extension-deadline\/","title":{"rendered":"Extended tax deadline: Can I file another extension after October 15?"},"content":{"rendered":"\n

The October extended tax deadline can almost feel like a second tax season. If you filed for an extension before the April 15 deadline and are just getting started on your return, the rush to get taxes done before October 15 is real.<\/p>\n\n\n

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With the extended tax filing deadline around the corner, it\u2019s easy to feel overwhelmed. You may have questions like \u201cwhat happens if you miss the tax deadline?\u201d or \u201ccan I file another extension?\u201d We\u2019re here to break it down so you know exactly what to expect and what to do if you\u2019re running behind. Read on to get all your tax extension deadline questions answered.<\/p>\n\n\n\n

Of course, you can rely on H&R Block to get your return across the finish line whether you file online or with an H&R Block tax pro.<\/p>\n\n\n\n

When is the extended tax filing deadline?<\/h2>\n\n\n\n

The extended tax filing deadline is October 15. This is the last day to file taxes after an extension (requested with Form 4868 in April).  <\/p>\n\n\n\n

While you have until October 15 to file your tax return, any taxes owed must be paid by the original due date to avoid interest and penalties. The extension only prevents the failure to file penalty.<\/p>\n\n\n\n

However, if you didn\u2019t file that extension form in April and you haven\u2019t yet filed your 2025 taxes, you\u2019ll want to get it done as soon as possible. Check out the “What to do”<\/a> section below to get started.<\/p>\n\n\n\n

Can I file another extension after October 15? <\/h2>\n\n\n\n

No, unfortunately, you can\u2019t file for a second tax extension after October 15. The IRS only allows one automatic extension per tax year. If you miss this deadline, your return is considered late, and penalties may apply.<\/p>\n\n\n\n

If you do not pay your taxes owed by the original due date, you will be subject to interest and penalties. The extension to file your return does not prevent these charges from accumulating.<\/p>\n\n\n\n

However, there are still ways to get caught up and minimize the impact. Check out the “What to do”<\/a> section below.<\/p>\n\n\n\n

Don\u2019t owe taxes this year? You may not need an extension. You\u2019re generally only required to file a return by the deadline if<\/em> you owe taxes. If you\u2019re expecting a refund, you may not be required to file a return\u2014but, keep in mind, filing is the only way to get your refund.<\/p>\n\n\n\n

What happens if you miss the tax extension deadline?  <\/h2>\n\n\n\n

If you miss the October extended tax filing deadline, you may owe failure-to-file penalties<\/a>. The failure-to-file penalties are generally based on the amount of tax due when the return was originally required to be filed on April 15. Plus, if you owe taxes, any failure-to-pay penalties<\/a> are assessed regardless of whether you filed for an extension.<\/p>\n\n\n\n

If you miss the tax extension deadline of October 15, your best bet is to file your return as soon as possible to minimize any further penalties and interest.<\/p>\n\n\n\n

So, how are IRS late-filing and late-payment penalties calculated?  Read on as we outline the difference between the two penalties.<\/p>\n\n\n\n

Failure-to-File Penalty after the extended tax deadline<\/h3>\n\n\n\n

This penalty is typically 5% of the unpaid taxes for each month your return is late, up to a maximum of 25%. If your return is more than 60 days late, the minimum penalty is either $525 (for 2026) or 100% of the tax due\u2014whichever is less.<\/p>\n\n\n\n

Penalties for filing taxes late after an extension: Terminology clarification<\/p>\n\n\n\n

Some people may think of this as a late filing penalty after the extension, but the technical term is failure-to-file penalty.<\/p>\n\n\n\n

Failure-to-Pay Penalty and interest<\/h3>\n\n\n\n

If you owe taxes and don\u2019t pay by the original tax payment deadline on April 15, the IRS charges a failure-to-pay penalty of 0.5% per month on the unpaid amount. Interest also accrues daily, based on the federal short-term rate plus 3%. Extending your return does not extend the obligation to pay taxes owed and penalties are assesses even if you\u2019ve requested an extension to file your return.<\/p>\n\n\n\n

How the penalties are calculated<\/h3>\n\n\n\n

Penalties are calculated based on how late your return is and how much you owe. If both the failure-to-file and failure-to-pay penalties apply, the IRS reduces the failure-to-file penalty by the amount of the failure-to-pay penalty so that the combined penalties do not exceed 5% per month. After 5 months, the failure to file penalty will max out but the failure to pay penalty will continue.<\/p>\n\n\n\n

What to do if you miss the October 15 tax extension deadline?<\/h2>\n\n\n\n

Missing the extended deadline isn\u2019t the end of the world, but you do want to act sooner than later.<\/p>\n\n\n\n

Here\u2019s what you can do to get back on track:<\/p>\n\n\n\n

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  1. File your return as soon as possible to minimize penalties. <\/strong>The sooner you file, the less you\u2019ll owe in penalties. Even if you can\u2019t pay your full tax bill, filing your return stops the failure-to-file penalty from growing.<\/li>\n\n\n\n
  2. Pay as much of your tax bill as possible. <\/strong>Paying even a portion of your tax liability can reduce the failure-to-pay penalty and interest. Every dollar counts.<\/li>\n\n\n\n
  3. Explore IRS payment options for your balance. <\/strong>If you can\u2019t pay in full, the IRS offers payment plans, there are options if you\u2019re unable to pay your tax bill. You can request an\u00a0IRS payment plan<\/a>, which allows you to pay your taxes in installments. Find out more about setting up an\u00a0installment agreement<\/a>.<\/li>\n\n\n\n
  4. Check whether you qualify for penalty relief.<\/strong> If you acted in good faith and have a valid reason for not meeting your tax obligations, you can ask the IRS to remove or reduce some penalties. If you think the amount you owe is incorrect, you can dispute the penalty. Additionally, if this is your first tax penalty or you meet other specific criteria, you might qualify for relief through an administrative waiver.<\/li>\n<\/ol>\n\n\n\n

    Exceptions to the October 15 extended tax deadline<\/h2>\n\n\n\n

    Please also note some taxpayers may have extra time to file their tax returns and pay any taxes due.<\/p>\n\n\n\n

    You may have more time if you are a:<\/p>\n\n\n\n