South Dakota Retirement Income Tax Guide for Seniors
No. South Dakota has no personal income tax. It does tax groceries, so it offers older residents a yearly refund, an assessment freeze on their home, and a way to postpone property taxes from age 70.
No. South Dakota taxes no personal income, including Social Security, pensions and retirement account withdrawals. Retirees pay sales tax, now 4.2% state plus local and charged on groceries too, and county property tax. Homeowners 65 or older with income under $56,595 (single) or $66,885 (household) can freeze their home's assessed value by applying to the county treasurer by April 1.
Income: nothing taxed by the state
There is no South Dakota income tax return. Social Security, Railroad Retirement, military and civilian pensions, IRA and 401(k) withdrawals, annuities, interest, dividends and capital gains are all free of state tax. Federal tax still reaches part of many retirees' Social Security; the Social Security tax calculator estimates how much.
Sales tax, including on food
South Dakota is one of the few states that taxes groceries at the full sales tax rate. The state rate was cut from 4.5% to 4.2% in 2023 as a temporary measure. Under current law it goes back to 4.5% on July 1, 2027. Cities add their own municipal sales tax on top. The 2026 Legislature also allowed counties to adopt an extra sales tax of up to 0.5%, but every dollar of it must go to lowering property taxes on owner-occupied homes, and the earliest it could start is January 1, 2027.
South Dakota has no estate tax and no inheritance tax.
Help with property tax for older homeowners
South Dakota has more senior property tax programs than most no-income-tax states. Each has its own deadline and office.
| Program | Who qualifies | What it does | Apply |
|---|---|---|---|
| Assessment freeze | 65+ or disabled; income under $56,595 (single) or $66,885 (household); home worth less than $514,500 | Keeps your home taxed at its earlier, lower value when values rise | County treasurer, by April 1 every year |
| Homestead exemption (deferral) | 70 or older, with income limits | Postpones property tax until the home is sold; the deferred tax becomes a lien with interest | County treasurer, by April 1 |
| Tax refund for seniors | 65+ or disabled; income $17,215 or less living alone, or $23,265 household | A yearly refund check, based on income | Department of Revenue, May 1 to July 1 |
| Rapid City municipal reduction | Rapid City residents 65+ or disabled, with income limits | Lowers your city property tax the next year | Pennington County treasurer |
The assessment freeze in detail
The freeze covers the house, a garage and the lot it sits on (or one acre, whichever is less). If the home's value goes up, you keep paying tax on the former, lower value. To qualify you must have owned an owner-occupied single-family home and lived in South Dakota for five years, unless you had the freeze the year before, and you must have lived in the home at least 200 days of the previous year. Income means federal adjusted gross income plus other income such as Social Security, from the previous calendar year. A surviving spouse who has not remarried can keep the freeze.
The freeze limits the value, not the tax rate. If your school district or county raises its levy, your bill can still go up.
The senior tax refund
This refund is meant to offset sales and property taxes for very low-income seniors. For the 2026 application (covering 2025), you must have lived in South Dakota all of 2025, been 65 by January 1, 2025 or disabled during 2025, and had income at or below the limits above. The Department of Revenue mails applications to last year's recipients in early May and sends refund checks starting in September.
Statewide changes that will show up in 2027 bills
- 3% caps: a 2025 law caps the yearly growth in total owner-occupied valuation in each county at 3% and limits local property tax budgets to 3% growth. The caps first appeared on 2026 assessment notices, apply to taxes paid in 2027 and last five years.
- Lower school levy: a 2026 law uses the money from the 0.3% sales tax increase coming in July 2027 to lower the school levy on owner-occupied homes, and adds a one-time payment so every homeowner sees a lower school levy on the 2027 bill.
Checklist for South Dakota retirees
- Mark April 1 on your calendar. The freeze and the deferral both need an application to the county treasurer by that date, and the freeze must be renewed every year.
- Keep last year's tax return and SSA-1099 handy. Every program uses the previous year's income.
- If your income is very low, apply for the state refund between May 1 and July 1.
- Veterans rated permanently and totally disabled can have the first $200,000 of their home's value exempted; apply to the county director of equalization by November 1.
Compare South Dakota with other states in our state retirement income tax finder and the guide to senior property tax exemptions by state.
Frequently Asked Questions
Does South Dakota tax Social Security?
No. South Dakota has no personal income tax, so Social Security and all other retirement income are free of state tax.
Does South Dakota tax groceries?
Yes. Groceries are taxed at the full state rate, which is 4.2% until July 1, 2027, when it is scheduled to return to 4.5%, plus any city sales tax.
What are the income limits for the South Dakota assessment freeze?
Previous-year income must be less than $56,595 for a single-member household or $66,885 for a multiple-member household, and the home must be worth less than $514,500 unless you had the freeze before.
When is the deadline for South Dakota senior property tax relief?
April 1 each year for the assessment freeze and the homestead deferral, filed with your county treasurer. The state tax refund runs from May 1 to July 1.
Can I postpone my property taxes in South Dakota?
Yes, if you are 70 or older and meet the income limits. The homestead exemption program delays payment until the property is sold. The unpaid tax becomes a lien and interest applies.
Sources: South Dakota Department of Revenue, Property Tax Relief Programs page, 2026 property tax relief program summary and Freeze on Assessments brochure (December 2025). Read October 2026. This page is general information, not tax advice, and is not affiliated with the South Dakota Department of Revenue or the IRS. Confirm eligibility with your county treasurer. See our Data Sources page for how we source figures.