In the title compound, C(14)H(11)BrF(3)N(5)O(2), the pyrimidine ring adopts a flattened envelope conformation with sp(3)-hybridized carbon as the flap [deviation = 0.177 (3) Å]. The dihedral angle between tetra-zole and bromo-phenyl rings is 84.3 (1)°. In the crystal, mol-ecules are linked into centrosymmetric dimers by pairs of N-H⋯N hydrogen bonds.