Kentucky vs South Dakota Paycheck Comparison 2026

At a $100,000 salary, South Dakota results in $3,500 more annual take-home pay. Kentucky has a flat state income tax of 3.50%. All taxable income is taxed at the same rate. South Dakota has no state income tax. Residents pay only federal income tax, Social Security, and Medicare.

The difference depends on salary. At $50,000, the gap is $1,750/yr. At $150,000, it grows to $5,250/yr. At $300,000, the difference is $10,500/yr.

Yes. Federal income tax, Social Security, and Medicare are the same in every state. Only state income tax differs. This calculator shows the combined effect of federal and state taxes on your take-home pay.

Kentucky is cheaper to live in. Cost of living in Kentucky is 4% lower than in South Dakota. Kentucky's Regional Price Parity is 88.3 and South Dakota's is 91.8 (US average = 100).

Yes. Kentucky has a lower cost of living than South Dakota (index 88.3 vs 91.8). Housing is typically the biggest difference between the two states.

Yes. South Dakota has a higher cost of living (index 91.8) compared to Kentucky (index 88.3). The national average is 100. Housing costs are typically the largest driver of the difference.

At a $100,000 salary, take-home pay of $75,680 in Kentucky has the purchasing power of $72,795 in South Dakota terms. Conversely, $79,180 in South Dakota equals $82,319 in Kentucky terms. After adjusting for both taxes and cost of living, South Dakota comes out ahead.

The overall cost of living is 4% different between Kentucky and South Dakota. Living costs are 12% below the national average Living costs are 8% below the national average After taxes and cost of living, South Dakota gives you more purchasing power on a $100,000 salary.

Kentucky requires residents to file a state income tax return annually, typically due April 15. South Dakota has no state income tax, so residents do not file a state tax return. If you move between states mid-year, you typically file a part-year resident return in each state for the income earned while living there. Each state has its own tax return form — check your state's department of revenue website for the correct form and e-filing options.