IRS On-Line EIN Service Planned Outage Post author:Frank Carnahan Post published:December 22, 2020 Post category:News 2020-12-22 The IRS on-line EIN service will be unavailable from approximately 5 p.m. Eastern time on Wednesday, Dec 23, 2020, until approximately 7 a.m. Eastern time on Monday, January 4, 2021, due to planned maintenance. You Might Also Like IRS shares 7 warning signs Employee Retention Credit claims may be incorrect February 16, 2024 Update on backlog of unopened checks September 25, 2020 The IRS alerts taxpayers of suspected identity theft by letter May 31, 2023