In October 2018, the IRS updated the Employee Compliance Plans Resolution System (EPCRS) by issuing Rev. Proc. 2018-52. EPCRS is a program that allows plan sponsors to correct errors involving qualified plans (such as 401(k) plans, profit sharing plans, defined benefit pension plans, etc.) and certain other types of plans that, if left uncorrected, could jeopardize the tax-favored status of the plan. Among other changes to EPCRS, Rev. Proc. 2018-52 provides that, beginning Jan. 1, 2019, Voluntary Correction Program (VCP) submissions may be made electronically via Beginning April 1, 2019, the electronic filing requirement becomes mandatory.