The U.S. Internal Revenue Service (IRS) reminded the nation’s more than 768,000 federal tax return preparers that they must renew their Preparer Tax Identification Numbers (PTINs) for 2019. All current PTINs will expire Dec. 31, 2018. Anyone who prepares or helps prepare any federal tax return, or claim for refund, for compensation must have a valid PTIN from the IRS. The PTIN must be used as the identifying number on returns prepared. Failure to have and use a valid PTIN may result in penalties. Click here for more information.