In the crystal structure of the title compound, C(4)H(12)N(+)·C(9)H(3)Br(4)O(4) (-)·CH(4)O, inter-molecular O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds link the components into columns stacked along the b axis. Between the columns, short Br⋯O contacts [3.122 (4) Å] and C-H⋯O hydrogen bonds are observed.