2022 SUI Tax Rate Update: As of January 14th, 43 states have issued 2022 Tax Rate notices, with 4 additional states or jurisdictions estimated to release them by the end of January. Below is a list of important upcoming deadlines: Penalty / Rate Protest Deadlines: Arkansas – January 17 / California – February 28 / Colorado – February 7 Louisiana - February 12 / Michigan - February 1 / Montana – January 20 Rhode Island - January 20 / Washington – January 28 West Virginia – Feb