Code 150 Return Filed and Taxed Assessed/Date is the date that the TP/NH filed the
tax return. SSA should use this date to determine if a tax return was “timely” filed for SSA purposes; i.e., within 3 years, 3 months and 15 days after the close
of the taxable year in which the SE was derived.
Click on PDF link in RS 01804.410C.1. in this section to view or print a copy of a
sample “Account Transcript”.