#3 State: South Dakota
Social Security benefits and retirement income are all tax-exempt in South Dakota. There’s no estate or inheritance tax, but this state loses points for applying an average 6.4 percent sales tax to groceries, nonprescription drugs, services, and online purchases from out-of-state retailers.
The median property tax on the median home value of $146,700 is $1,943, which is the 16th-highest in the country.