No state income tax
Wyoming is one of nine states with no personal income tax and also has no corporate income tax. The employee pre-tax savings stack is federal marginal rate plus 7.65% FICA only - no state marginal layer. A $3,300 healthcare FSA election saves about $1,050 for a 22% federal bracket Wyoming employee versus about $1,360 for the same California employee. Matchbook calibrates under-election guardrails tighter for Wyoming because the marginal cost of forfeiture is unchanged but the savings-per-dollar is lower.