The first-principles discrete variational method in the self-consistent charge approximation (DVM-SCC) is used to investigate the electronic structure of the ferromagnetic compound γ -Fe 4 N (fcc). We calculated the hyperfine fields (HF), isomer shifts (IS), magnetic moments and local density of states (DOS) at both non-equivalent iron sites in this phase. We also investigated the dependence of these quantities on the lattice spacing and the local properties at nitrogen sites. Our results indicate that N atoms act as accepters for electrons.