South Dakota property tax: owner-occupied levy, appeals, dates

Who sets your property tax?

Three offices share the work (Department of Revenue, Property Tax 101).

• The county director of equalization is the assessor. The director values every parcel at its full and true (market) value as of November 1 of the year before the assessment year (SDCL 10-6-105). Assessment notices go out by March 1 (SDCL 10-6-154).
• The county auditor adds up the budget requests of each taxing district and calculates a levy for each.
• The county treasurer sends the bills and collects the money.

The Department of Revenue oversees the system and certifies the levies.

How is the tax calculated?

The formula has four steps.

1. Assessed value. The director sets the full and true value, most often from comparable sales and replacement cost.
2. Taxable value. State law requires equalization to 85%, so assessed value is multiplied by an annual county factor. The Department’s example uses 0.85. In Minnehaha County, the county’s worksheet for taxes payable in 2026 multiplies the assessed value of non-agricultural property by 0.947.
3. Levy. Each taxing unit’s levy is expressed in dollars per $1,000 of taxable value.
4. Tax. Taxable value × total levy ÷ 1,000.

You pay tax on a value set more than a year earlier. A sale causes no special reassessment; every parcel is reassessed each year.

What does owner-occupied status save?

The main benefit is a reduced school general fund levy (SDCL 10-13-39). It lowers only that levy. County, city and other school levies are the same for all property. A principal residence qualifies: a house, condominium, townhouse, manufactured home or building of four or fewer units. A person can have only one.

• The owner files a certificate with the county director of equalization by March 15 (SDCL 10-13-40).
• Once approved, the classification stays until the property is sold or its use changes. A buyer of a property already classified as owner-occupied may meet the requirement by filing the certificate of value at the transfer (same statute).

Do not confuse this with the state’s “homestead exemption.” In South Dakota that name is used for a program for people 70 or older that delays payment of the tax until the property is sold, with the tax becoming a lien (Department of Revenue).

Example: a $400,000 home in Sioux Falls

This example uses the levies Minnehaha County lists for 2025 taxes payable in 2026, the latest year adopted. It assumes the home is in the Sioux Falls school district (49-5), is owner-occupied, and has an assessed value of $400,000. It excludes special assessments.

That is about 1.3% of the assessed value. The same home without owner-occupied status would pay the “other” school levy of 10.280, for a total levy of 16.893 and a tax of $6,399, or $1,194 more. Parts of the Sioux Falls school district have different school levies. Check your parcel on your tax bill. The Sioux Falls guide has the city context.

Which relief programs exist?

Limits come from the Department’s 2025 and 2026 materials and may change. The Department also describes recent laws. S.B. 216 (2025) caps annual increases in each county’s total owner-occupied valuation at 3% and limits local budget growth to 3% a year, for five years, starting with taxes payable in 2027. S.B. 245 (2026) lowers the owner-occupied school levy in 2027 and, from July 1, 2027, dedicates a 0.3% sales tax to that relief. S.B. 96 (2026) lets a county add a sales tax of up to 0.5% to credit county property tax.

How do I appeal my assessment?

You must appeal first to the local board of equalization, or you lose your rights to the later boards. Residents of unorganized townships and non-residents may go straight to the county board. Your appeal must cover the total value of the property, and you need evidence such as comparable sales, not only a statement that the value is too high. The 2026 calendar from the Department of Revenue:

Dates change slightly each year. A dispute about owner-occupied status goes directly to the county board. For help with value questions, the Minnehaha County assessor’s office is at 605-367-4228 (Treasurer FAQ).

When is the tax due?

Taxes are due January 1, but the first half is accepted without penalty until April 30 and the second half until October 31. They become delinquent on May 1 and November 1, with a 10% annual penalty (Minnehaha County Treasurer). The county gives no discount for paying early. For how this splits at a sale, see closing costs in South Dakota. Lenders often collect the tax through an escrow account.