A PTIN is a preparers tax identification number. A PTIN is now a requirement in order to prepare and/or file tax returns. Your PTIN must be renewed each year through the IRS.
To apply for your PTIN for for information about requirements for tax preparers, visit the IRS website for New Preparer PTIN Requirements page.
To renew your PTIN, visit the IRS website for your PTIN renewal.