The title distannoxane, [Sn(4)(CH(3))(8)(C(3)H(4)N(3)S)(2)(CH(3)O)(2)O(2)], lies about a center of inversion; the tetra-nuclear mol-ecule features a three-rung-staircase Sn(4)O(4) core in which the two crystallographically independent Sn(IV) atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn-N = 2.239 (2) Å] compared with the neutral N atom that binds to the central Sn atom [Sn← N = 2.757 (3) Å]. The oxide O atom is three-coordinate whereas the methano-late O atom is two-coordinate. The terminal Sn atom is five-coordinate in a cis-C(3)SnNO trigonal-bipyramidal environment, whereas the central Sn atom is six-coordinate in a C(2)SnNO(3) skew-trapezoidal-bipyramidal geometry.