Mark Eisner


Mark Eisner was a prominent lawyer, tax expert, and politician. Eisner served as Collector of Internal Revenue for the Third District from 1915 to 1919. In that capacity, he was responsible for administering the War Tax Law, which laid the groundwork for an expanded personal federal income tax law enacted by Congress in 1917.
He is named in a number of important tax cases, including Eisner v. Macomber and Towne v. Eisner.
In 1912, Eisner was elected to the New York State Assembly where he served two consecutive terms. He was also part of the New York State Constitutional Convention of 1915.
Eisner died on 28 March 1953 at the age of 66.