South Dakota has no state income tax
South Dakota is one of nine states that levy no income tax on wages, so your only deductions are federal income tax, Social Security (6.2%), and Medicare (1.45%). That makes South Dakota take-home pay among the highest in the country at any salary level.
Federal deductions every South Dakota worker pays
Regardless of state, the federal layer is identical nationwide: 2026 brackets from 10% to 37%, standard deduction of $16,100 (single), $32,200 (married filing jointly), or $24,150 (head of household), Social Security at 6.2% up to $184,500 in wages, and Medicare at 1.45% with an additional 0.9% above $200K.
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