You can call the IRS at 1-800-908-4490 weekdays from 7:00am to 7:00pm local time (Hawaii and Alaska, use Pacific time) to have your IP PIN reissued by mail. However, this can take up to 21 days.
Note: If you moved in 2017 or you won't be able to file your 2016 taxes by October 15 (after you have requested an extension), you'll need to paper-file your 2016 taxes without your IP PIN. The IRS will review your return to make sure it belongs to you.
