A method is presented for the Auger generation suppression in narrow‐gap semiconductors using the magnetoconcentration effect for the case when all the generation‐recombination mechanisms (Auger, radiative, and Shockley–Read) are taken into account. A numerical solution is given for the kinetic equation determining carrier concentration distribution in a thin semiconductor slab placed in an electric and a magnetic field. The results of the numerical calculation show that the Auger generation suppression becomes very efficient when the concentration of Shockley–Read recombination centers is small enough.