Motivated by tensions between experimental measurements and SM predictions in b→sℓ+ℓ- transitions, we present the first study of nonminimal flavor-violating minimal supersymmetric Standard Model (MSSM) scenarios contributing to the relevant Wilson coefficients to address the observed anomalies using SuperIso and MARTY. We calculate the full one-loop analytical contributions of the general MSSM to Wilson coefficients relevant for flavor anomalies, together with the anomalous muon magnetic dipole moment (g-2)μ. We show that, after imposing theoretical constraints on the flavor-violating parameters, we can find scenarios in agreement with the experimental measurements that can address at the same time the tensions in flavor observables and in (g-2)μ.