Does South Dakota Tax Retirement Income?

South Dakota has no individual income tax, so Social Security benefits is not taxed at the state level.

South Dakota does not tax Social Security benefits because it has no individual income tax.

With no state return to file, the only Social Security tax question for a South Dakota retiree is the federal one: depending on combined income, up to 85% of benefits can be taxable on the federal return. Retirees comparing South Dakota with a state that does tax benefits can see the full list in our guide to states that do not tax Social Security.

South Dakota has no individual income tax, so pension income is not taxed at the state level.

Public, private, and military pension income is not subject to any South Dakota income tax.

There is no retirement exclusion to calculate because there is no income tax. What South Dakota does tax is consumption and property: sales and use tax, property tax, motor fuel, alcohol, and tobacco taxes.

Public and private pensions, annuities, and retirement-plan distributions do not always get the same treatment. The pension comparison lists which states exempt pensions broadly, partly, or only for certain plans.

South Dakota has no individual income tax, so traditional 401(k) and IRA withdrawals is not taxed at the state level.

Traditional 401(k) and IRA withdrawals, including large lump sums and Roth conversions, face no South Dakota income tax.

Because South Dakota does not tax the withdrawal, the timing of Roth conversions and required minimum distributions is a purely federal decision for a South Dakota resident. That is one reason retirees convert after establishing South Dakota residency: the conversion income is taxed federally in the year of conversion, but no state layer is added on top.

Every state page on this site runs the same retiree profile so the states can be compared: $30,000 of Social Security, $40,000 withdrawn from a traditional 401(k), and a $20,000 private pension, $90,000 in total.

A single 68-year-old with $30,000 of Social Security, $40,000 from a 401(k), and a $20,000 pension owes no South Dakota income tax on any of the $90,000. Federal tax still applies to $25,500 of the Social Security and to all of the pension and 401(k) income.

There is no state return to file. Federal AGI is about $85,500 and federal tax applies as usual, but the state line is $0 whether the income is Social Security, a pension, or a 401(k) distribution. A $150,000 traditional IRA withdrawal in the same year changes nothing at the state level; it is federally taxable, but South Dakota has no income tax to apply. The same is true for a married couple, a Roth conversion, or a capital gain on a brokerage account. The state costs that do apply are the sales tax on what the retiree buys and the property tax on the home.

The same $90,000 profile looks different a state line away. The rows below come from the reviewed 51-state table; each state name links to its own guide.

• North Dakota: treats Social Security as exempt, pensions as taxed, and 401(k) and IRA withdrawals as taxed, with a top rate of 2.50% and large zero-rate bracket; military pay exempt.
• Nebraska: treats Social Security as exempt, pensions as taxed, and 401(k) and IRA withdrawals as taxed, with a top rate of 4.55% and military retirement pay is exempt.
• Minnesota: treats Social Security as partially taxed, pensions as taxed, and 401(k) and IRA withdrawals as taxed, with a top rate of 9.85% and income-based Social Security subtraction.

The zero on the income-tax line is real, but a South Dakota move is often driven by trust law and domicile rather than retirement income. If your income is mostly Social Security and a modest pension, your current state may already tax very little of it, and the savings from moving can be smaller than the headline suggests.

Military retirement: Military retirement pay is not subject to South Dakota income tax. See the military retirement tax map for every state's treatment.

Estate and inheritance tax: South Dakota has no state estate tax and repealed its inheritance tax effective July 1, 2001. Federal estate tax can still apply to a large estate.

Selling a home or investments in South Dakota: retirement-income rules do not cover capital gains. See South Dakota capital gains tax before selling appreciated property or a brokerage position in the year you move or retire.

• Confirm the exclusion you are claiming. There is no retirement exclusion to calculate because there is no income tax. What South Dakota does tax is consumption and property: sales and use tax, property tax, motor fuel, alcohol, and tobacco taxes.
• Part-year residents. If you moved into or out of South Dakota during the year, retirement income is generally allocated to the period of residency, and the former state may still tax distributions received before the move. Document the move date, the new domicile, and where each distribution was received.
• No state withholding to set up. Custodians withhold federal tax only for a South Dakota resident. If you moved from a state that taxes retirement income, stop that state's withholding once residency changes, and keep proof of the move date.
• Federal side. The federal return has its own rules: up to 85% of Social Security can be taxable, the temporary $6,000 federal senior deduction is available for 2025 through 2028 subject to income limits, and Roth conversions are taxed in the conversion year. State exemptions do not change any of that.
• Large one-time distributions. If you are moving to South Dakota, establish domicile before the year of the big withdrawal or Roth conversion and document it: driver license, voter registration, and time in the state. The former state will look closely at a residency change that lines up with a $150,000 distribution.

Comparing states before a move? Use the retirement taxes by state table and the moving states tax guide, and read retirement tax planning for how distributions, conversions, and a move are sequenced together.