A person who files his or her taxes without help from tax professionals. Derived from the word "Auto-didact", meaning self-taught.
Guy 1: Who did your taxes this year? You go to H&R block?

Guy 2: No way, did it myself. Just kinda winged it.

Guy 1: Ah, an autodeduct. I'm impressed.
by lemmcaces March 22, 2011
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