An extension of time to file a return may be requested on or before the due date of the return. The extension is limited to six (6) months. You may receive another 6-month extension if you are living or traveling outside the U.S. You must file the first 6-month extension by the April 15 deadline before applying for the additional extension of time to file by October 15.
Extensions for Members of the US Armed Forces Deployed in a Combat Zone or Contingency Operation. Deadlines for filing your return, paying your taxes, claiming a refund, and taking other actions with OTR is extended for persons in the Armed Forces serving in a Combat Zone or Contingency Operation. The extension also applies to spouses/registered domestic partners, whether they file jointly or separately on the same return. Complete the ‘Military Combat Zone’ on your Extension of Time to File, FR-127.
Note: Copies of a federal request for extension of time to file are not acceptable.
The extension of time to file is not an extension of time to pay. Full payment of any tax liability, less credits, is due with the extension request. If the tax liability is not paid in full with the extension, the request for an extension will not be accepted, and the taxpayer will be subject to a failure-to-pay penalty and interest on any tax due.