The Individual Master File (IMF) is the system currently used by the United States Internal Revenue Service (IRS) to store and process tax submissions and used as the main data input to process the IRS's transactions. It is a running record of all of a person's individual tax events including refunds, payments, penalties and tax payer status.[1] It is a batch-driven application that uses VSAM files.[2]
Written in assembly language and COBOL, the IMF was originally created by IBM for the IRS in the 1960s to run with an IBM System/360 and associated tape storage system. The IMF is frequently identified as a legacy system in need of modernization.
^J Reilly, Peter (April 8, 2012). "Stupid Is As Stupid Does - Tax Protesters And The Cheek Defense". Forbes. Archived from the original on June 12, 2018. Retrieved May 10, 2018.
^"IMF details" (PDF). May 10, 2018. Archived (PDF) from the original on October 17, 2020. Retrieved April 27, 2020. This article incorporates text from this source, which is in the public domain.
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This article incorporates text from this source, which is in the public domain.
