This gives you until October 15 to file without penalties. You may file Form 1040, Form 1040A or Form 1040EZ any time before the six-month extension period ends.You must make a proper estimate of your tax for the year. Simply go to IRS.gov. Then, click on the "File an Extension" link. We give you an automatic 6-month extension to file your return. This must be requested prior to April 15. This is only an extension for filing paperwork, and taxes must be paid in advance of the deadline. This extension will allow you to remit your business tax liability no later than 45 days from the delinquent date. Those affected now have until May 1, 2025, to meet various tax filing and payment deadlines originally due between Aug.