Information for Taxpayers assigned to a Private Collection Agency

Alert: Your delinquent account could be assigned to a Private Collection Agency.

The Internal Revenue Service (IRS) will notify you of the assignment before the Private Collection Agency contacts you and will send you Publication 4518, What You Can Expect When the IRS Assigns You to a Private Collection Agency.

The notice from the IRS will contain the name of the Private Collection Agency they assigned your account to, along with the Private Collection Agency’s address and phone number.

To protect your privacy, the notice will also provide you with a unique ten-digit Taxpayer Authentication Number. Be sure to save the number. The Private Collection Agency will only work with you on your delinquent accounts after authenticating your identity using your Taxpayer Authentication Number.

The IRS contracts with Private Collection Agencies requires that they provide you with quality service and equitable treatment. For more information about the private debt collection program, visit

(IRS Publication 594 and (TTT 10/15/19)