How Paycheck Taxes Work in South Dakota
How paycheck taxes work in South Dakota: Because South Dakota has no state income tax, your paycheck deductions are primarily federal income tax, Social Security, and Medicare. South Dakota is one of nine states without income tax on wages. The state funds operations through sales and use taxes.
South Dakota State Tax Information
South Dakota has no state income tax.
South Dakota is one of nine states without income tax on wages. The state funds operations through sales and use taxes.
Federal Income Tax
Federal income tax uses progressive brackets — higher income is taxed at higher rates. The standard deduction reduces your taxable income before brackets apply. Your W-4 determines how much your employer withholds each pay period.
Social Security
Social Security tax (FICA) is 6.2% of wages up to the annual wage base ($184,500 in 2026). Both employee and employer pay this amount; this calculator shows the employee portion.
Medicare
Medicare tax is 1.45% on all wages with no cap. High earners pay an additional 0.9% on wages above $200,000 (single) or $250,000 (married filing jointly).