South Dakota (SD) · No state income tax · Property tax: 1.24% · Median home (ZHVI): $275,000
As of · Sources: Zillow ZHVI, Tax Foundation, Census ACS, Freddie Mac PMMS
Retirement planning in South Dakota requires understanding how the state taxes retirement income. South Dakota has no state income tax, meaning retirement withdrawals from 401(k)s, IRAs, and pensions are taxed only at the federal level — a major advantage for retirees. Social Security taxation varies by state; check whether South Dakota taxes Social Security benefits, as this affects your total retirement income strategy. With a cost of living index of 88.1, the amount you need saved for retirement differs significantly from the national average. A common rule is 25x annual expenses — in South Dakota, that target is more achievable thanks to below-average living costs.
Social Security + 401(k) state treatment + estate exemption shape the retirement savings calculator in South Dakota. Every row cites a primary public dataset. Numbers reflect the most recent vintage available; refresh cadence is documented in the methodology.
Your retirement projection in South Dakotahas two tax-aware legs: the accumulation side (contributions reduce today's AGI) and the withdrawal side (distributions are taxed when you pull them out). South Dakota does NOT tax Social Security benefits, and 401(k) withdrawals are NOT taxed at the state level[1].
This changes the math. A flat-tax state that spares Social Security means the 4% safe-withdrawal rule stretches further in real terms than the raw headline number suggests — the right portfolio target is FIRE_number = annual_expenses × 25, where annual_expenses already nets out state taxes. No state-level estate tax simplifies high-net-worth planning — only federal estate tax above the $13.99M exemption applies.
Calc-specific note: Rule of 25: FIRE number = annual expenses × 25. Expenses must be net of state taxes on withdrawals.
Worked example — South Dakota
A South Dakota household targeting $80,000/year in retirement spending needs a portfolio ≈ $2,000,000 (25× rule, 4% SWR). No state tax on withdrawals keeps the target at $2,000,000.
No state income tax.[2]
Same formula, different inputs. Each city name links to its own pSEO page where the calculator is pre-filled with local medians.
| City | Median home | Median rent | HUD FMR 2BR | Median income |
|---|---|---|---|---|
| Sioux Falls, SD | $336,938 | $1,315/mo | $1,200/mo | $81,418 |
| Rapid City, SD | $369,930 | $1,352/mo | $1,250/mo | $71,985 |
Sources: Zillow ZHVI + ZORI[1], HUD FMR[2], Census ACS[3], Freddie Mac PMMS[4].
Moving one state over changes the retirement savings numbers. Compare median home value (Zillow ZHVI), top marginal income tax rate, effective property tax rate, and the BEA all-items Regional Price Parity across South Dakota and its border states.
| State | Median home | Top inc tax | Prop tax rate | RPP (US=100) |
|---|---|---|---|---|
| South Dakota (this page) | $275,000 | None | 1.24% | 88.1 |
| compare to Iowa | $215,000 | 3.80% | 1.50% | 88.8 |
| check Minnesota | $335,000 | 9.85% | 1.12% | 98.3 |
| see Montana | $460,000 | 5.90% | 0.83% | 91.0 |
| Nebraska side-by-side | $265,000 | 5.20% | 1.73% | 90.3 |
Sources: Zillow ZHVI[1], state Departments of Revenue / Tax Foundation[2], Tax Foundation property taxes[3], BEA Regional Price Parities[4].
These calculators share inputs with the retirement savings formula, so pair them to pressure-test your answer from multiple angles.
| Metric | South Dakota | National Avg | IA | MN | MT |
|---|---|---|---|---|---|
| Median Home Price | $275,000 | $420,000 | $245,000 | $425,000 | $475,000 |
| Property Tax Rate | 1.24% | 1.07% | 1.57% | 1.12% | 0.84% |
| State Income Tax | None | 4.6%* | 5.7% | 9.85% | 6.84% |
| Avg Insurance Cost | $3,160/yr | $1,544/yr | $1,320/yr | $1,320/yr | $1,320/yr |
| Cost of Living Index | 88.1 | 100 | 87 | 105 | 104 |
| Household Income — p25 | $45,200 | $41,401 | $45,807 | $49,800 | $45,609 |
| Household Income — p50 (median) | $79,954 | $83,592 | $85,000 | $92,473 | $82,000 |
| Household Income — p75 | $130,002 | $153,000 | $135,696 | $158,112 | $142,396 |
*Average of states that levy an income tax. 2026 estimates. [3] Income percentiles from DQYDJ/Census CPS 2024[4].
Track take-home pay: no state income tax means only federal + FICA apply — one of the simpler payroll pictures in the U.S. in South Dakota.
Anchor savings goals to the South Dakota cost of living index (88.1). A national 20% savings rate needs adjustment up or down depending on local expense floors.
Use tax-advantaged accounts first: 401(k), HSA, IRA. Since South Dakota has no income tax, Roth accounts may be especially attractive — you lock in today's zero-state-tax cost forever.
Every number on this page reads from the same CalcFi data repository used by the Live Data pages below — the figures stay consistent.
Home Prices by State
Zillow ZHVI across all 50 states
Property Tax by State
Effective rate × ZHVI = annual bill
Household Income by State
FRED real median + percentile bands
Cost of Living by State
BEA RPP all-items + housing
No-Income-Tax States
Full list + trade-offs
Current Interest Rates
Treasury curve + PMMS + FDIC
CalcFi pSEO pages combine three inputs: (1) the calculator formula itself, which runs client-side so no inputs leave your browser; (2) state-level financial constants from primary public datasets; and (3) national benchmarks for comparison. The South Dakota page uses the property tax rate (1.24%), median home price ($275,000), and no state income tax from the sources listed below.
Refresh cadence:state tax brackets and minimum wage rates are reviewed annually after each state's legislative session. Property tax, median home price, insurance, and cost-of-living figures are reviewed annually against the primary sources. Income percentiles are refreshed when the Census CPS/IPUMS releases update (typically September). Page-level dateModified matches the last editorial review date, shown above.
Known limits: statewide averages mask large intra-state variance — county-level property tax and metro-level home prices differ significantly from the figures shown. For the most precise calculations, cross-check the output against your actual county assessor and the latest federal/state tax tables at filing time.
Use Retirement Savings Calculator for any city in South Dakota.
Every number on this page cites a primary public dataset. Last reviewed (auto-bumped by the next ISR refresh after an ETL run).
CalcFi does not sell data. If you spot an error, email hello@calcfi.app with the URL and the correct figure.