A procedure is proposed to calculate the shape of the characteristic X􏰀ray emission bands of metals with allowance for multielectron effects. The effects of the dynamic screening of a core vacancy by conduc􏰀 tion electrons and the Auger effect in the valence band are taken into account. The dynamic screening of a core vacancy, which is known to be called the MND (Mahan–Nozeieres–De Dominics) effect, is taken into account by an ab initio band calculation of crystals using the PAW (projected augmented waves) method. The Auger effect is taken into account by a semiempirical method using the approximation of a quadratic dependence of the level width in the valence band on the difference between the level energy and the Fermi energy. The proposed calculation procedure is used to describe the X-ray emission K and L2,3 bands of metallic magnesium and aluminum crystals. The calculated spectra agree well with the experimental bands both near the Fermi level and in the low􏰀energy part of the spectra in all cases.