Master File Tax Code (MFT) The MFT reduces the numerous types of tax to a two digit code
Master File (MF) A magnetic tape record containing all information regarding the taxpayer’s filing of returns and related documents.
Master Control Record (MCR) This is basically the DLN and ABC identifier along with other block header information of a…
Magnetic Tape (Mag Tape) Magnetic tapes are made of flexible plastic with only one side coated with a magnetic recording…
Machine language The language at its lowest level in binary form (001111100), into which data and programs must ultimately be…
Long Closing The AIMS closing of examined returns and surveyed claims. A long closing uses Form 5344 (Exam), Form 5599…
Key Verification (KV) The process of verifying original entry (OE) data on a terminal.
Julian Date The numeric day of the year that the return or document was numbered for processing. (For example: January…