No state income tax
Alaska has no personal income tax. The employee pre-tax savings stack is federal marginal rate plus 7.65% FICA plus 0.50% employee SUI (2025) - no state marginal layer. A $3,300 healthcare FSA election saves about $1,080 for a 22% federal bracket Alaska employee versus about $1,360 for the same California employee. Matchbook calibrates under-election guardrails for Alaska the way it does for Florida and other no-income-tax states, but adds the employee SUI line which most no-tax-state models drop.