The mol-ecule of the title compound, C(4)H(8)N(6), assumes an approximately planar structure, the methyl C atoms and the C atom to which they are bonded being out of the mean tetrazole ring plane by 0.108 and 0.139, and 0.144 Å, respectively. π-π stacking between parallel tetra-zole rings [centroid-centroid distance = 3.4663 (11) Å] is observed in the crystal structure. Inter-molecular N-H⋯N hydrogen bonding further helps to stabilize the crystal structure.