Tax data is certain information on IRS and MEF interface alerts. Specifically, tax
data includes the taxpayer's name, address, and SSN, type of transaction (e.g., interest,
dividends, pension), and source of transaction (i.e., name of payer) and amount of
transaction. (Even after the alert information is developed, safeguard the information according to SI 02310.040C.2 and SI 02310.040C.3.)