A PTIN is a Preparer Tax Identification Number. Paid preparers of most federal returns must have one and include it on the return along with their signature in order to avoid penalties. The IRS can use the PTIN to track returns prepared by particular individuals (years ago they had to use the preparer’s SSN). PTINs are part of a system rolled out in 2010 where the IRS planned to regulate all preparers of individual returns and a few others. The system was found contrary to Section 330 of Title 31.

Read More