South Dakota HSA Calculator

Calculate HSA tax savings in South Dakota. Save on federal + 0% state tax. Max contribution $4,400/$8,750.

Updated Mar 1, 2026

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Your Annual Contribution

$0$10,000

Employer Contribution

$0$5,000

Current HSA Balance

$0$500,000

Annual Medical Expenses

$0$50,000

Additional Details

Investment Return (%)

015%

Years to Retirement

145

Federal Marginal Rate (%)

1037%

South Dakota Tax Rate (%)

015%

Pre-filled: Computed from South Dakota's actual none brackets at its own $76,881 median household income — edit this only to model a different rate

Additional Details

Coverage (1=Self, 2=Family)

Annual Tax Savings

$1,186.00

Estimated • Based on your inputs

Projected Balance at Retirement

$129,011.00

Total Career Tax Savings

$23,720.00

Detailed Breakdown

Max Contribution Limit$4,400.00

Total Annual Contribution$4,000.00

Total Contributions$80,000.00

23%

Investment Growth$74,011.00

21%

Effective Medical Cost (After Tax)$1,055.00

Annual Tax-Free Withdrawal$1,500.00

After-Tax Equivalent Value$183,385.00

53%

Monthly Tax Savings$99.00

Disclaimer: This calculator provides estimates for informational purposes only. Results should not be considered financial, tax, or legal advice. Consult a qualified professional for your specific situation.

South Dakota Quick Facts

None Income Tax Rate

1.00% Property Tax Rate

$76,881 Median Income

94.1 Cost of Living

How This Calculator Works

Calculation methodology and assumptions

HSA (Health Savings Account) calculator for South Dakota residents. HSAs offer a triple tax advantage: tax-deductible contributions, tax-free growth, and tax-free withdrawals for qualified medical expenses. For 2026, the maximum contribution is $4,400 (self-only) or $8,750 (family), with a $1,000 catch-up for those 55+. The IRS has already announced 2027 limits of $4,500 (self-only) and $9,000 (family) under Rev. Proc. 2026-24. South Dakota provides a state tax deduction for HSA contributions; this calculator's default "South Dakota Tax Rate" is the state's real marginal bracket rate at its own median household income (not a flat top-bracket assumption), and remains a labeled, editable override. Projected balance assumes consistent contributions invested at the specified return rate.

Key State Information

South Dakota HSA context: State HSA deduction available (marginal rate ~0% at median household income) | Income tax: None (no state tax benefit from HSA deduction) | Median household income $76,881 | Cost of living index 94.1.

Standard financial formulas Pre-filled with documented data Estimates only — not financial advice

Data Source

IRS, Tax Foundation

View Original Source | Source record reviewed Mar 1, 2026 | Review target: annually

Example Calculation

Let's calculate the long-term value of maxing out an HSA.

A 35-year-old contributes $4,400/year (individual limit) to an HSA, investing in a total stock market index fund averaging 8% annual returns. They pay current medical expenses out of pocket and let the HSA grow untouched for 30 years.

Result: After 30 years: approximately $498,000 in tax-free medical savings. If they contributed $4,400/year for 30 years ($132,000 total contributions), the remaining ~$366,000 is pure investment growth — all tax-free for medical expenses. After age 65, HSA funds can be used for ANY expense (non-medical withdrawals taxed as income, like a Traditional IRA). The HSA effectively becomes a super-powered retirement account.

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StateCalc Team

Editorial Team

The StateCalc team builds free financial calculators using data from official government sources including the IRS, U.S. Census Bureau, BLS, and state revenue departments. All formulas are validated by an automated test suite and cross-referenced against published data.

Our editorial standards

Frequently Asked Questions

What is the HSA contribution limit in South Dakota?

HSA contribution limits are set federally, not by state. For 2026, the limit is $4,400 for self-only coverage and $8,750 for family coverage. Those 55+ can contribute an additional $1,000. In South Dakota, HSA contributions are deductible from both federal and state income taxes.

Is an HSA worth it in South Dakota?

An HSA is still worth it in South Dakota for the federal tax deduction and FICA savings, even though there's no state income tax. Every $1,000 saves approximately $297 in federal + FICA taxes.

What will the HSA contribution limit be in 2027?

The IRS has already announced 2027 HSA limits in Rev. Proc. 2026-24: $4,500 for self-only coverage (up $100 from 2026) and $9,000 for family coverage (up $250 from 2026). The 55+ catch-up contribution stays fixed at $1,000 (it is set by statute, not inflation-indexed). South Dakota residents will continue to get a state deduction on the higher amount, on top of the federal tax savings.