In this report, we discuss the currently available theoretical predictions for the parity-violating asymmetry in Møller scattering and their uncertainties. In light of the experimental uncertainty achievable by the MOLLER experiment at Jefferson Lab, a theoretical uncertainty of order 0.5% or better is required. This theoretical uncertainty will be achieved by implementing two-loop calcula- tions of the electroweak asymmetry, including radiative corrections. We discuss the status of the calculations in two schemes: MS and on-shell, and outline the plans towards achieving the ultimate theoretical uncertainty.