Clear Money Guide
What this state guide covers
A quick view of the questions, practical details and source notes below.
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2026 edition · statute-cited · part of Clear Money Guide’s 51-state retirement tax series. This guide covers state taxes on retirement income and estate transfers; property and sales taxes vary by county and are outside its scope.
Updated July 24, 2026. Quick answer: South Dakota taxes none of it: no state income tax — Social Security, pensions, 401(k) and IRA withdrawals all untaxed — no estate tax, and no inheritance tax. Among the no-tax states it is arguably the cleanest package for retirees: probate runs on the Uniform Probate Code’s reasonable-compensation standard with no fee schedule, and up to $100,000 of personal property passes by affidavit.
How South Dakota taxes retirement income
| Income tax | None |
| Social Security | Not taxed |
| Pension / 401(k) / IRA | Not taxed |
| Estate / inheritance tax | None |
Settling an estate: UPC simplicity and a $100,000 affidavit
South Dakota is a Uniform Probate Code state: personal-representative compensation is “reasonable” (SDCL §29A-3-719), attorney fees likewise — no percentage schedule anywhere in the process. Small estates: up to $100,000 of personal property (net of liens) passes by collection affidavit (SDCL §29A-3-1201) after a 30-day wait, provided no personal-representative appointment is pending and no state medical-assistance debt is outstanding. Context: probate cost by state · small-estate limits by state.
Is South Dakota a good state to retire in for taxes?
Yes, with no asterisks in the tax code itself: zero on income, zero at death, no fee schedule at probate, and a six-figure affidavit lane. South Dakota’s trust industry exists precisely because the state pairs no income tax with settlor-friendly law — retirees benefit from the same fundamentals without needing a dynasty trust. As with every no-tax state, the decision comes down to non-tax factors: climate, distance to family, healthcare access. The tax section of that decision is already settled.
South Dakota vs. common alternatives
| State | Social Security | Pension / 401(k) / IRA | Estate tax | Inheritance tax |
|---|---|---|---|---|
| South Dakota | Not taxed | Not taxed (no income tax) | None | None |
| North Dakota | Not taxed | Taxable — but top rate is just 2.5% (0% first bracket) | None | None |
| Wyoming | Not taxed | Not taxed (no income tax) | None | None |
| Florida | Not taxed | Not taxed (no income tax) | None | None |
Comparison rows summarize general rules; see our 51-state retirement tax table for statute-cited detail.
Considering a Roth conversion? The converted amount is taxed as ordinary income in the year you convert, and South Dakota may treat it differently from the retirement income above — see how all 51 jurisdictions tax Roth conversions.
Finding a financial advisor in South Dakota
Per the SEC’s July 2026 Investment Adviser roster, South Dakota has 14 SEC-registered advisory firms (#49 nationally) managing $6.2 billion (#52 by AUM). Full breakdown: South Dakota advisor statistics. Reviewing fee structures: fee-drag calculator.
What probate costs in South Dakota
South Dakota sets probate compensation by a “reasonable fee” standard with no percentage schedule, so anyone quoting a firm figure is estimating. And the small-estate shortcut of $100,000 does not clear a solely owned house on its own, which is the detail most guidance omits. Full detail with the governing statute, the court filing fee and the threshold: South Dakota probate cost. To price a specific estate, use the probate cost calculator.
Cite or share this guide
Suggested citation: Clear Money Guide, “South Dakota Retirement Taxes (2026 edition),” statute-cited; clearmoneyguide.com/south-dakota-retirement-taxes/. Free to cite with attribution and a link. Data verified July 23–24, 2026 against state statutes, session laws, and revenue-department guidance.