The 23-year-old striker has been hit with a £400 fine for throwing his top into the crowd after his injury-time equaliser against Everton on Sunday, as the club cannot afford more
Finances at Boundary Park are tight and players had been warned before the game that losing any kit would result in them being hit in the pocket.
Smith's goals have been hugely valuable for the Latics this season after his double helped the League One strugglers beat Liverpool, while his equaliser against the Toffees has set up a money-spinning replay at Goodison Park.
Fellow Oldham striker Jose Baxter will be returning to the Toffees, where he started his career, in the replay - provided the Latics have the right apparel.
He told The Daily Mail: "We all got carried away and didn't really think about the notice. I just hope we've got enough kit for Tuesday [when Oldham face Stevenage]."