South Dakota's Assessment Freeze locks your home's assessed value so that rising real estate markets cannot push your property tax bill higher. Seniors 65 or older with household income below $56,595 (single) or $66,885 (multiple-member household) may qualify, and you apply annually on Form PT-38 to the county treasurer by April 1. This guide explains how the freeze works, who qualifies, and what to do to keep it active.
In This Guide
- Key Takeaways
- South Dakota Senior Property Tax Relief at a Glance
- How the Assessment Freeze Works
- Who Qualifies
- Income Limits
- Home Value Cap
- Residency and Occupancy Requirements
- How to Apply
- Frequently Asked Questions
- Next Steps
South Dakota Senior Property Tax Relief: The Assessment Freeze
South Dakota's approach to senior property tax relief is distinct from the credits and refund programs used by most other states. Instead of refunding taxes after you pay them or reducing the tax rate, South Dakota freezes the assessed value of your home.
Here is why that matters. Property taxes are calculated as a rate applied to the assessed value of your home. When market values rise, assessed values follow, and so does your tax bill -- even if your income has not gone up. The Assessment Freeze stops that cycle. Once the freeze is in place, the county applies the tax rate to the frozen (lower) assessed value rather than the current market value. Your bill stays flat as long as you qualify and renew annually.
The freeze is called the Assessment Freeze for the Elderly and Disabled. It is the primary vehicle for South Dakota senior property tax relief, and its value increases over time as property markets rise. A home that appreciated significantly since the freeze was applied could be generating substantial savings each year for the homeowner.
South Dakota Senior Property Tax Relief at a Glance
| Feature | Details |
|---|---|
| Program name | Assessment Freeze for the Elderly and Disabled |
| Age requirement | 65 or older, or disabled as defined by the Social Security Act |
| Income limit (single) | $56,595 |
| Income limit (multiple) | $66,885 |
| Home value cap | $514,500 full and true value |
| Residency requirement | 5 years in South Dakota |
| Occupancy requirement | 200 days per year in the home |
| How it works | Assessed value is frozen; taxes calculated on lower frozen value |
| Application form | Form PT-38 |
| Where to apply | County treasurer (not the director of equalization) |
| Deadline | April 1 annually |
How the Assessment Freeze Works
The mechanics are straightforward. When you are approved:
- The county establishes the frozen assessed value of your home as of the date of your first approved application.
- In future years, even if the county reassesses your property at a higher value, your tax bill is calculated using the lower frozen value instead.
- You pay taxes on the frozen value year after year, as long as you continue to qualify and renew annually.
The tax rate itself still changes as it does for all properties in your area -- but because the base (assessed value) is frozen, the impact of any rate changes on your bill is limited to the frozen value rather than the inflated market value.
If you sell the home, the freeze ends. The new owner takes the property at its current market value for tax purposes.
If you stop qualifying -- because your income increases above the threshold, your home's value exceeds the cap, or you stop meeting the residency or occupancy requirements -- the freeze ends and your bill returns to the current assessed value.
Who Qualifies
To qualify for the Assessment Freeze:
- You must be 65 or older, or disabled as defined by the Social Security Act.
- Your household income must be below the applicable threshold.
- Your home's full and true value must be $514,500 or less.
- You must have been a South Dakota resident for at least five years.
- You must reside in the home at least 200 days per year.
The Social Security Act definition of disability is the standard used by the SSA for Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI). If you receive those benefits, you likely meet the definition.
Income Limits
The income thresholds for the current program year are:
- $56,595 for a single-member household
- $66,885 for a multiple-member household
If your household has more than one person, the higher threshold applies. These are household income figures, not individual income figures, so all income coming into the household is counted.
Income typically includes Social Security, pensions, wages, investment income, rental income, and other sources. Check with your county treasurer or the South Dakota Department of Revenue for the precise definition used for this program, as some income types may be treated differently.
These limits are set by state law and adjust periodically. Verify the current-year limits with the South Dakota DOR at dor.sd.gov before you apply.
Home Value Cap
Your home's full and true value must be $514,500 or less to qualify.
Full and true value is the county's estimate of your home's market value -- this is not the same as assessed value (which is typically a percentage of full and true value for tax purposes). If you are unsure of your home's full and true value, your county assessor can tell you what figure is on file.
If your home's full and true value has risen above $514,500 due to market appreciation, you may no longer qualify for the freeze even if you met the requirement in prior years. Check your home's current valuation before applying.
Residency and Occupancy Requirements
Five-year residency. You must have been a South Dakota resident for at least five consecutive years before the year you are applying. If you moved to South Dakota in 2022, you first become eligible for the 2027 program year.
200 days per year. You must live in the home for at least 200 days per year. That is roughly six and a half months. If you winter elsewhere, count the days you are in your South Dakota home to confirm you meet the threshold. A calendar log or travel records can be useful documentation if your occupancy is questioned.
How to Apply
Deadline: April 1, annually. File each year -- prior-year approval does not carry over automatically.
Where to file: county treasurer. This is a common source of confusion. You file Form PT-38 with the county treasurer, not the director of equalization. The director of equalization handles other property matters, but this specific program goes to the treasurer.
How to apply:
- Obtain Form PT-38 from your county treasurer's office or at dor.sd.gov.
- Gather documentation of your 2025 household income: tax returns, Social Security letters, pension statements, and any other income sources.
- Have documentation of your age or disability status ready if asked.
- Submit the completed Form PT-38 to the county treasurer by April 1.
Most county treasurer offices can process your application during a single visit. Call ahead to confirm any documentation requirements specific to your county.
Questions about the South Dakota Assessment Freeze? Find guidance and resources at brevy.com.
Frequently Asked Questions
The freeze locks in the assessed value, and all property taxes calculated on that value benefit from the freeze. However, if special assessments or other charges are added to your bill separately (such as improvement assessments), those would not be affected by the assessed-value freeze.
Yes. The Assessment Freeze requires an annual application on Form PT-38 filed with the county treasurer by April 1. Missing the deadline means the freeze does not apply for that year.
If your household income rises above the applicable threshold in a given year, you are not eligible for the freeze for that program year. Your property taxes would be based on the current assessed value rather than the frozen value. If your income drops back below the threshold in a future year, you can reapply.
You may qualify under the disability category. The program covers people who are disabled as defined by the Social Security Act. Contact your county treasurer to confirm what documentation is required.
Yes. The freeze is tied to you as the qualifying homeowner. When the property transfers to a new owner, the freeze ends and the property returns to its current assessed value. If a surviving spouse inherits the home, they would need to apply separately and meet the qualifications in their own right.
South Dakota also has a property tax reduction program for certain veterans and other groups. Check with your county treasurer about what other programs might apply to your situation. The Assessment Freeze and veteran programs operate on separate tracks.
Next Steps
If you are 65 or older (or disabled), have household income below the applicable threshold, and have lived in South Dakota for at least five years, the Assessment Freeze is worth applying for. Its value compounds over time as markets rise.
- Confirm your household income is below $56,595 (single) or $66,885 (multiple) and gather documentation.
- Check your home's full and true value at your county assessor's office to confirm it is at or below $514,500.
- Get Form PT-38 from your county treasurer or at dor.sd.gov.
- File with the county treasurer by April 1 -- remember, the treasurer, not the director of equalization.
- Renew every year. Put a calendar reminder for early March so you are not caught before the April 1 deadline.
For a broader view of managing senior care costs in South Dakota, see our guide on how to pay for senior care.
If selling the home is on the table, see our guide on selling or renting your home to pay for care for a look at when that path makes financial sense.
For homeowners who want to access equity without selling, our overview of reverse mortgages for senior care covers the key tradeoffs.
Learn More
- Senior Property Tax Relief by State
- How to Pay for Senior Care
- Selling or Renting Your Home for Care
- Reverse Mortgage for Senior Care
Find more guidance on South Dakota senior property tax relief at brevy.com.
The information on Brevy.com is for educational purposes only and is not a substitute for professional legal, financial, or medical advice. Rules vary by state and program and change frequently. Always verify with the relevant agency or a qualified professional. Brevy is not a law firm, financial advisor, or healthcare provider.