How this calculator works for South Dakota residents

South Dakota's no state income tax is a retirement advantage. Sioux Falls, Rapid City, Aberdeen, and Brookings residents can use this 401(k) calculator to project their nest egg.

Key features for South Dakota planning

• Employer Match — Model employer matching formulas, including match caps, to see how fast matching contributions grow your balance.
• Withdrawal Planning — Simulate annual withdrawals in retirement to see how long your projected balance lasts.
• Contribution Limits — Project contributions in line with current IRS 401(k) contribution and catch-up limits.
• Growth Projections — Compound your current balance, contributions, and match year over year out to age 100.
• Year-by-Year Table — Review balance, contributions, match, and earnings each year in a clear table.