The Internal Revenue Service, on 26 October 2017, reminded the nation’s more than 727,000 federal tax return preparers that they must renew their Preparer Tax Identification Numbers (PTINs) for 2018. All current PTINs will expire Dec. 31, 2017.

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.

For those who have a 2017 PTIN, the renewal process takes a few moments online. Those who cannot remember their user ID and password can find online tools to assist them. Preparers can get started at www.irs.gov/ptin. If registering for the first time, the PTIN application may also be completed online. There is no fee for obtaining or renewing a PTIN.

Paper Form W-12, IRS Paid Preparer Tax Identification Number Application and Renewal, is available for paper applications and renewals, and takes four to six weeks to process.

All enrolled agents, regardless of whether they prepare returns, must have a PTIN in order to maintain their status.