April 17 is the deadline for most taxpayers to file an extension and to pay taxes owed to avoid penalty and interest charges. If you file for an extension, your return is due October 15, 2018. Special rules may apply if you're in the military or live outside the U.S.
Here are 5 important things you need to know about filing an extension:
1. File on time even if you can’t pay If your return is completed but you are unable to pay the full amount of tax due, do not request an extension. File your return on time and pay as much as you can. The IRS will send you a bill or notice for the balance due. To apply online for a payment agreement, go to the IRS website at http://www.irs.gov and click “Payment Plan". If you are unable to make payments, call the IRS at 800-829-1040 to discuss your options.
2. Extra time to file An extension will give you extra time to get your paperwork to the IRS, but it does not extend the time you have to pay any tax due. You will owe interest on any amount not paid by the April 17 deadline, plus you may owe penalties.
3. Form to file Request an extension to file by submitting Form 4868, Application for Automatic Extension of Time to File U.S. Individual Income Tax Return, to the IRS by April 17, 2018, or make an extension-related electronic credit card payment. For more information about extension-related credit card payments, see Form 4868.
4. E-file extension You can e-file an extension request via the tax software. The IRS will acknowledge receipt of the extension request if you file by computer.
5. Electronic funds withdrawal If you ask for an extension via the tax software, you can also choose to pay any expected balance due by authorizing an electronic funds withdrawal from a checking or savings account. You will need the appropriate bank routing and account numbers. For information about these and other methods of payment, visit the IRS website at http://www.irs.gov or call 800-TAX-1040 (800-829-1040).