mo-payrollSource-cited draft Tier 2 Missouri content skill for employer payroll compliance covering tax year 2025. Includes the MO PIT brackets up to 4.95% (phasing down via revenue triggers), MO W-4 state W-4, MO-941 monthly/quarterly withholding, MO-W-3 annual reconciliation, MO UI wage base $9,500 with rates 0-9.75%, the Kansas City and St. Louis 1% local earnings taxes applicable to both residents and non-resident workers, and 20-factor worker classification test.