What Does 'MM' Mean in Accounting?

by Anthony Thompson ; Updated September 26, 2017
Businessman working with documents in the office

All industries have their own unique language, and accountancy is no exception. Some of the terms in use are simple acronyms, such as LTL for long-term liabilities; others, such as MM, are derived from Roman numerals. Learning the exact meaning of individual acronyms and abbreviations is essential if confusion is to be avoided.


In Roman numerals, M represents 1,000. In accounting, the suffix MM is used to represent 1,000 thousands, which equals 1 million. When MM is used in this way, $150,000,000 is written as $150MM.

About the Author

Based in London, Anthony Thompson originally worked in the financial sector but has been writing professionally since 1992. The former editor of a monthly computing and technology magazine, his work has appeared in The Guardian, GQ and Time Out.

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