File IRS Form 4868 for an automatic extension of time to file your federal return
Submit Form 4868 by the original tax filing deadline
Pay any taxes you expect to owe by the original deadline
Use IRS Free File, tax software, a tax professional, or mail to submit the extension
If you live outside the U.S. and qualify, you may receive an automatic extension to file
Check your state tax agency rules for a separate state extension
Keep confirmation of your extension request and payment
File your completed tax return by the extended deadline
Note that an extension to file is not an extension to pay