We consider the Pauli hamiltonian for charged fermions in electromagnetic and scalar potentials as being a component of the D=2 supersymmetrical hamiltonian. The admissible class of electromagnetic potentials is described. For a subclass of such potentials the fermion spectrum consists of pairs of equally splitted levels. The double degeneracy of levels (the sign of hidden supersymmetry) arises for holomorphic superpotentials. © 1988.