Compared to the Ar•••H 2 O complex, the performance of the tested methods in the water dimer case is slightly worse. The propSAPT method values of the induced dipole moment lead to at most 32% and 35% error for the theory's Hartree-Fock-and DFT-based flavors, respectively. However, values of the induced dipole moment calculated with the FF-SAPT approaches are no worse than within 13% of unsigned error for the Hartree-Fock reference and within 17% for the DFT reference, compared to finite-field CCSD(T).