401k contribution calculator - 2026
Enter your salary, contribution rate, and employer match to see your projected retirement savings
| Category | Annual | Total at retirement |
|---|---|---|
| Your contributions | -- | -- |
| Employer match | -- | -- |
| Investment growth | -- | -- |
| Total projected balance | -- | -- |
Projections assume constant contribution rates and investment returns. Actual returns vary and are not guaranteed. This calculator is for educational purposes only. Consult a financial advisor for personalized retirement planning advice.
South Dakota 401k and retirement tax guide - 2026
How South Dakota taxes 401k contributions and retirement distributions
South Dakota retirement tax overview
South Dakota has no state income tax making it fully tax-free for 401k distributions and other retirement income. South Dakota's low cost of living extends retirement savings significantly.
South Dakota retirees pay only federal taxes on 401k distributions. Combined with South Dakota's low cost of living, this makes retirement savings stretch significantly further than in higher-tax, higher-cost states.
Federal 401k rules that apply in South Dakota
Regardless of South Dakota state tax treatment, federal rules govern 401k contribution limits. In 2026 the 401k contribution limit is $23,500 per year ($31,000 if age 50 or older with catch-up contributions). Traditional 401k contributions reduce your federal taxable income dollar-for-dollar in the year contributed. You pay ordinary income tax when you withdraw in retirement. Withdrawals before age 59.5 are subject to a 10% federal penalty plus income taxes unless an exception applies.
Official sources for South Dakota retirement and 401k taxes:
- South Dakota Tax Authority — official South Dakota income and retirement tax guidance
- IRS - 401k Contribution Limits — official 2026 limits ($23,500 standard)
- IRS - 401k Plans — comprehensive 401k tax rules and guidance
- U.S. DOL - Employee Benefits Security Administration — 401k plan regulations
Tax laws change frequently. Consult a qualified financial advisor or tax professional for advice specific to your South Dakota retirement situation.