marginal tax rate

noun

: the rate of additional federal income tax to be paid on additional income

Word History

First Known Use

1948, in the meaning defined above

Time Traveler
The first known use of marginal tax rate was in 1948

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Cite this Entry

“Marginal tax rate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/marginal%20tax%20rate. Accessed 29 Jan. 2023.

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