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The asymmetric unit of the title compound, C10H7F3O4, contains two independent molecules. In one of the molecules, the F atoms of the rifluoromethyl group are disordered over two positions with site occupation factors 0.231 (11)/0.769 (11). The intramolecular C—H...O hydrogen bond results in the formation of a planar five-membered ring, which is oriented at a dihedral angle of 4.24 (3)° with respect to the six-membered ring. In the crystal structure, C—H...F and O—H...O hydrogen bonds link the molecules.