Some IRS systems will be unavailable from midnight on May 24 through 7 a.m. on May 28.     Home  |  Register       IRS Watch   May 22, 2019       Top Stories   E-services, e-filing down over Memorial Day by JEFF STIMPSON   Some IRS systems will be unavailable from midnight on May 24 through 7 a.m. on May 28. READ MORE »       Mnuchin set for clash with Waters after IRS memo on Trump taxes by SALEHA MOHSIN   Treasury Secretary Steven Mnuchin headed for another clash with Representative Maxine Waters as Democrats ratchet up pressure over his refusal to turn over President Donald Trump