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Tax Deadlines & Extensions

Tax Deadlines, Extensions & Online Payment Options

Learn how to file a tax extension, track key deadlines, and pay taxes online—all with trusted Aurora guidance and links to official IRS resources.

Deadlines at a Glance

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Federal Tax Filing Deadline

For most individuals, taxes are due April 15, 2026. If April 15 falls on a weekend or holiday, the deadline may shift—always check for current-year details.

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Extension Filing Deadline

A tax extension gives you until October 15, 2026, to file your return. You must still estimate and pay any taxes owed by the April deadline to avoid penalties and interest.

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Estimated Tax Due Dates

For self-employed or those making quarterly payments:

• April 15, June 15, September 15, January 15 (following year).

Retirement Tax Planning

How to File a Tax Extension—Checklist

  • Know your key identifiers (name, SSN, address)
  • Estimate your total tax owed for the year
  • Complete IRS Form 4868 (personal) or Form 7004 (business)
  • Submit the extension electronically or by mail by the original due date
  • Pay any estimated taxes owed to avoid late payment penalties
What to Bring

What an Extension Does (and Does Not Do)

Filing an extension gives you extra time to submit your tax return paperwork—it does not give you more time to pay. Any taxes owed are still due on the original deadline. Paying late can result in interest and penalties, so estimate what you owe and pay as much as you can when you file for an extension. For official details, visit the IRS payment page.

IRS Payment Options

  • Pay online via direct debit, credit card, or IRS2Go app
  • Schedule future payments or set up a payment plan if you can’t pay in full
  • Mail a check with your extension form if needed


For more details on all options, feel free to reach out!

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For Business Leaders

When to Call a Tax Professional

Extensions work well for simple tax situations, but call a professional if you:

  • Have income from multiple states

  • Retirement Plans & Employee Benefits

  • Received new IRS letters or have prior-year filing issues

  • Are unsure how much to pay with your extension

Professional support can help you avoid costly mistakes and keep you on track with deadlines.

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Get Help With Your Tax Prep

More Resources & Support

Explore our tax organizer, refund tracking tools, and FAQs for common extension and payment questions. Our team serves Aurora, Denver, Centennial, and Colorado Springs—get local answers or schedule a consultation if you need step-by-step support.