!Validate EFW2 File Format The Social Security Administration has provided a software program, AccuWage, for users to download from the SSA website to validate the EFW2 file prior to submitting it to the SSA. The web link is http://www.ssa.gov/employer/accuwage/index.html#download Please download the AccuWage software for the current year from this link. Users should always run AccuWage software, with the EFW2 file generated by [RPYEU], to verify and correct all potential errors prior to sending the EFW2 file to the SSA.