South Dakota homeowners pay a median of $2,724 a year in property tax, an effective rate of 1.06%, the 18th highest of the 51 states we cover. The deadline to appeal: Mid-March (local board), then April 7 (county). Here is who sets your value, how to challenge it and what evidence works.
Closed for 2026Closed for 2026. The local board deadline was March 12, 2026, and the county board deadline was April 7, 2026. The next window opens when 2027 assessment notices are mailed, which must happen by March 1, 2027. The 2027 dates are not yet published. As an estimate only, using the statute's rules, the local board deadline would be about March 11, 2027, and the county board deadline about April 6, 2027. Relief programs have separate deadlines, such as November 1 for the disabled veteran exemption.
Local board of equalization: your written appeal must be mailed or delivered to the clerk of the local board by the Thursday before the third Monday in March. A postmark on or before that date counts. In 2026 that was March 12. The local board meets starting the third Monday in March. County board of equalization: file a written appeal with the county auditor by the first Tuesday in April. A postmark on or before that date counts. In 2026 that was April 7. Office of Hearing Examiners: send a letter to the chief administrative law judge in Pierre by the third Friday in May, which was May 15 in 2026. Circuit court: file within 30 days after the later of the published or served notice of the county board's decision (SDCL 10-11-44). From the Office of Hearing Examiners, file within 30 days after notice of its decision. Example: Brown County's 2026 Assessment and Appeal Procedure lists March 12 for the local board appeal and April 7 for the county board appeal.
The county assessor must mail an assessment notice to each owner by March 1. The notice must also tell owners about certain tax relief programs, such as the owner-occupied, veteran and elderly or disabled programs.
Where you file depends on your county. Pick yours for the office contacts, local tax figures and a step-by-step guide.
Enter the market value on your assessment notice and what you think the home would really sell for. We estimate the yearly saving if the board agrees with you.
Some states cap how fast the taxable value of a home can rise (California, Florida, Michigan and Texas homesteads, for example). If your taxable value is already held below market value by a cap, a lower market value may not lower this year's bill.
The county assessor sets a value for every home in the county. Each county also has a Director of Equalization, who explains how values were set. Appeals start with a local board of equalization (a township or city board), or with the county board in unorganized territory, which has no local board. Some areas combine the local and county boards into one consolidated board. Appeals not resolved at the first level go to the county board of equalization. Homes are valued at their actual market value, meaning what the home would sell for on the open market. The assessor uses the cost, market and income approaches. A home cannot be assessed higher than its market value, and it cannot be assessed higher than comparable properties. The county assessor mails assessment notices every year by March 1. The sources reviewed do not describe a multi-year reappraisal cycle.
Before you file, talk to your county Director of Equalization. The Department of Revenue's 2026 Property Owner guide says the Director can explain how your value was determined and show the method used. Check your assessment notice to make sure the property is listed correctly.
What works in South Dakota: Recent sales of similar homes near you, with an explanation of how they match your home; Assessments of similar nearby homes that show your home is assessed higher; Errors in the property record, such as wrong size, wrong legal description or wrong classification; A written statement of the reason you are appealing, such as 'property is higher than market value'; Photos or repair records that show condition problems, if condition affects value.
Send a written notice of appeal to the clerk of your local board (your city or township). It can be a letter, an email, a signed PT 17 form, or other written notice. Include your name, the legal description of the property, and a short reason, such as 'property is higher than market value'. The clerk will tell you when the board will hear your appeal. At the hearing, the PT 17 form must be completed. The clerk helps you complete it if you attend. Bring evidence. The board must send you its written decision within seven days after it adjourns. In 2026 that notice was due by March 27. The local board can only compare individual properties. It cannot change the level of value for a whole class of property. Cost: No filing fee appears in the Department of Revenue guides or the statutes reviewed.
You must prove your value is wrong. The DOR Property Owner guide says that just stating the value is too high is not enough. You must have evidence, such as sales of similar properties or the assessments of similar properties, and you must show how those properties are comparable to yours. Your appeal must cover the total value of the property. An appeal on only the land or only the building counts as an appeal of the whole property.
Written appeal to the county auditor by the first Tuesday in April (April 7 in 2026). A postmark on or before that date counts. The county board must mail its decision by the Friday after it adjourns (May 8 in 2026). If you disagree with the local board's decision, file a written appeal with the county auditor. The county board is made up of the county commissioners. It hears appeals from local board decisions, and from property owners in unorganized territories, which have no local board. If your property is in an area that combined its local and county boards (a consolidated board), your first appeal goes to the consolidated board, and you file with the county auditor by the same April deadline. After the county board, you can appeal to the Office of Hearing Examiners by the third Friday in May, or go to circuit court within 30 days. You cannot appeal to both at the same time.
The sources reviewed do not say how a successful appeal changes the tax bill for the year. Ask your county Director of Equalization what happens after a decision.
Yes. A home cannot be assessed higher than comparable properties, and the local board can equalize values between individual properties. Show sales or assessments of similar nearby homes that are valued lower than yours. Run the numbers with our unequal assessment calculator.
Most wins start with a mistake in the assessor's record of your home. Check it line by line.
Record card checklistAn exemption is separate from an appeal: you apply once and it cuts your taxable value every year. Check you have every one you qualify for.
For homeowners who are 65 or older, or disabled, who have owned and lived in the home for at least five years (unless already frozen the prior year). The freeze keeps the taxable value at its earlier level. Income limits apply. Apply each year to the county treasurer by April 1. Properties worth $514,500 or more are not eligible unless already frozen.
For a home owned and occupied by a veteran rated as permanently and totally disabled from a service-connected disability. The first $200,000 of value is exempt. Un-remarried surviving spouses may be eligible. Deadline November 1. Contact your county Director of Equalization.
You can file and appear on your own. The statutes allow an appeal to be made by the owner as an individual, through an attorney, or through an agent (SDCL 10-11-16). At the Office of Hearing Examiners, you may be heard in person or by an attorney (SDCL 10-11-42).
Fill in your details and download a written appeal statement as a PDF or Word file. Most boards also require their own appeal form: file the form and attach this letter and your evidence to it.
Tax Appeal Map is a free information site, not a law firm or appraiser. The letter is a template, not legal advice.
Local board of equalization: your written appeal must be mailed or delivered to the clerk of the local board by the Thursday before the third Monday in March. A postmark on or before that date counts. In 2026 that was March 12. The local board meets starting the third Monday in March. County board of equalization: file a written appeal with the county auditor by the first Tuesday in April. A postmark on or before that date counts. In 2026 that was April 7. Office of Hearing Examiners: send a letter to the chief administrative law judge in Pierre by the third Friday in May, which was May 15 in 2026. Circuit court: file within 30 days after the later of the published or served notice of the county board's decision (SDCL 10-11-44). From the Office of Hearing Examiners, file within 30 days after notice of its decision. Example: Brown County's 2026 Assessment and Appeal Procedure lists March 12 for the local board appeal and April 7 for the county board appeal.
With the Local board of equalization appeal. Send a written notice of appeal to the clerk of your local board (your city or township). It can be a letter, an email, a signed PT 17 form, or other written notice. Include your name, the legal description of the property, and a short reason, such as 'property is higher than market value'. The clerk will tell you when the board will hear your appeal. At the hearing, the PT 17 form must be completed. The clerk helps you complete it if you attend. Bring evidence. The board must send you its written decision within seven days after it adjourns. In 2026 that notice was due by March 27. The local board can only compare individual properties. It cannot change the level of value for a whole class of property.
No filing fee appears in the Department of Revenue guides or the statutes reviewed.
Before you file, talk to your county Director of Equalization. The Department of Revenue's 2026 Property Owner guide says the Director can explain how your value was determined and show the method used. Check your assessment notice to make sure the property is listed correctly.
You can appeal to the County board of equalization. Written appeal to the county auditor by the first Tuesday in April (April 7 in 2026). A postmark on or before that date counts. The county board must mail its decision by the Friday after it adjourns (May 8 in 2026). If you disagree with the local board's decision, file a written appeal with the county auditor. The county board is made up of the county commissioners. It hears appeals from local board decisions, and from property owners in unorganized territories, which have no local board. If your property is in an area that combined its local and county boards (a consolidated board), your first appeal goes to the consolidated board, and you file with the county auditor by the same April deadline. After the county board, you can appeal to the Office of Hearing Examiners by the third Friday in May, or go to circuit court within 30 days. You cannot appeal to both at the same time.
The sources reviewed do not say how a successful appeal changes the tax bill for the year. Ask your county Director of Equalization what happens after a decision.
Checked 2026-10 against official South Dakota sources. Local deadlines and fees can differ; confirm with your assessor or board.