where r is the position operator and p is the momentum operator. The LG formulation suffers from origin dependence, which can be addressed by using London orbitals for variational methods 9,10,12,65-67 or with our origininvariant formulation [LG(OI)] for any method, discussed below. The VG suffers from an unphysical static limit that needs to be evaluated and subtracted out explicitly (called the modified VG or MVG approach) . In previous work, we studied how the evaluation of [α] ω converges towards basis set and electron correlation completeness. In this work, we investigate how the choice of origin affects standard LG-OR calculations. Therefore, we need to discuss the expressions that quantify this dependence. Considering an origin displacement: