Today is Tax Day; Deadline to File Taxes or File an Extension04/15/2026Today is Tax Day, and that means tonight is the deadline to file your taxes. If you cannot file your return by tonight, you should request an extension to avoid a failure to file penalty, giving you until October 15th to submit your return. The IRS reminds you that it has a variety of free tools and resources on IRS.gov to file on time or request an extension. Click here to visit the IRS' e-file webpage.Click here to visit the IRS' webpage to file for an extension.