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Updated 2025 Tax Year

Miner County
Property Tax Guide

Everything you need to know about property taxes in Miner County, SD. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
Quick Facts
Tax Rate
0.8% to 1.4% of market value, varies by taxing districts and location within county
Exemptions
4+ Available
Section 1

How Property Tax Works

Miner County, South Dakota operates under a property tax system that serves as the primary funding source for essential local services including schools, roads, law enforcement, and county operations. Property taxes in Miner County are calculated based on assessed property values and vary significantly by location within the county due to different combinations of special taxing districts such as school districts, municipalities, and other local service areas.

The effective tax rate in Miner County typically ranges from approximately 0.8% to 1.4% of market value, though this can vary based on your specific location and the special districts that serve your property. For 2025, county officials are considering options to reduce owner-occupied property taxes, though final tax rates have not yet been determined. Property owners should note that tax bills reflect levies from multiple overlapping jurisdictions, and rates can differ substantially between neighboring properties served by different school districts or municipalities.

All property tax credits and exemptions require formal application and are not automatically applied to your assessment. Property owners are responsible for filing the necessary paperwork by specified deadlines to receive any available tax relief.

Section 2

What Makes Up Your Tax Bill

The 2025 levy year tax rates for Miner County have not yet been finalized. Rates vary significantly by location within the county based on which special taxing districts serve each property. A typical breakdown might include:

ComponentEstimated Rate RangeDescription
County General0.15% - 0.25%County operations, roads, law enforcement
School District0.45% - 0.75%K-12 education, varies by district
Municipality0.10% - 0.30%City services (if within city limits)
Special Districts0.05% - 0.20%Fire, water, sewer, other local services
Total Range0.75% - 1.50%Combined effective rate

Note: These are estimated ranges based on typical South Dakota county structures. Actual rates for levy year 2025 will be determined later in 2024. Your specific rate depends on which school district, municipality, and special districts serve your property address. Contact the Miner County Assessor for your exact rate calculation.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Miner County, property taxes are due in two installments:

Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes in Miner County are additional property tax bills issued when there are mid-year changes to property ownership, improvements, or corrections to assessments. Common triggers include new construction completion, property sales that reveal assessment discrepancies, or the discovery of previously unassessed improvements.

When supplemental taxes are levied, they cover the tax difference from the effective date of the change through the end of the current tax year. For example, if you complete a $100,000 home addition in July, you would receive a supplemental tax bill for the additional taxes on that improvement for July through December of that tax year.

The calculation takes the change in assessed value, applies the current year's tax rate for your area, and prorates it based on the months remaining in the tax year. If your addition increased your assessed value by $100,000 and your total tax rate is 1.2%, the annual additional tax would be $1,200. For six months (July-December), your supplemental bill would be approximately $600, typically due within 30 days of issuance.

Example Calculation

The following examples use estimated rates since 2025 rates are not finalized. Actual calculations will vary based on your specific location and applicable special districts:

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (85% of market): $255,000
  • Less: Owner-Occupied Credit (application required): -$25,000
  • Net Taxable Value: $230,000
  • Tax Rate (estimated): 1.1%
  • Annual Tax: $2,530
  • Monthly (if escrowed): $211

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (85% of market): $510,000
  • Less: Owner-Occupied Credit (application required): -$25,000
  • Net Taxable Value: $485,000
  • Tax Rate (estimated): 1.2%
  • Annual Tax: $5,820
  • Monthly (if escrowed): $485

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (85% of market): $850,000
  • Less: Owner-Occupied Credit (application required): -$25,000
  • Net Taxable Value: $825,000
  • Tax Rate (estimated): 1.3%
  • Annual Tax: $10,725
  • Monthly (if escrowed): $894

Note: All tax credits require separate application and are not automatically applied. Rates shown are estimates pending final 2025 levy determinations.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Miner County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects monthly payments equal to 1/12th of your annual property tax bill along with your mortgage payment, holding these funds in a dedicated escrow account.

Property taxes in Miner County are typically due on April 15 and October 15 each year. Your lender will pay these bills directly to the county treasurer from your escrow account. Lenders are required to provide annual escrow statements showing deposits, payments, and account balances, and must maintain cushion amounts within federally regulated limits.

When your property taxes change due to reassessment or rate adjustments, your lender will adjust your monthly escrow payment accordingly. You'll receive advance notice of any payment changes, typically with options to pay any shortage over 12 months or make a lump sum payment. It's important to review your annual escrow analysis and contact your lender promptly if you notice discrepancies or have questions about your escrow calculations.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
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Section 6

Frequently Asked Questions

Q: When are property taxes due in Miner County for 2025? A: Property taxes are typically due on April 15 and October 15. No deferments are allowed. Contact the Miner County Treasurer to confirm specific due dates for the 2025 tax year.

Q: What tax credits are available for homeowners? A: South Dakota offers various tax credits including owner-occupied credits and senior/disabled credits. All credits require separate application through the county assessor's office. Credits reduce your tax bill, not your property's assessed value.

Q: How does the homestead credit work? A: The homestead credit typically limits assessment increases on owner-occupied properties, often capping annual growth at 10%. This requires filing an application with the county assessor and must be renewed as specified by county policy.

Q: When do I need to apply for tax credits? A: Most tax credit applications have annual deadlines, typically in early spring. Contact the Miner County Assessor's office for specific application deadlines and required documentation for each credit program.

Q: How often are properties reassessed? A: South Dakota requires property reassessment every three years, though counties may assess more frequently. The Miner County Assessor can provide your property's assessment schedule and recent valuation history.

Q: What if I disagree with my property assessment? A: You can appeal your assessment to the county Board of Equalization during their designated meeting period, typically in March or April. Appeals must be filed within specified deadlines with supporting documentation of your property's value.

Q: What are the penalties for late payment? A: Late payments typically incur interest and penalty charges. Contact the Miner County Treasurer for specific penalty rates and procedures for the current tax year.

Q: Can I pay property taxes online? A: Many South Dakota counties offer online payment options. Check the Miner County Treasurer's website or contact their office directly for available payment methods and any associated convenience fees.

Q: Why do my taxes differ from my neighbor's? A: Tax bills vary based on property value, location within different special taxing districts (school, fire, municipal boundaries), and which tax credits each owner has successfully applied for and received.

Q: How do special district taxes work? A: Your property may be served by multiple special districts (school, fire, water, etc.), each with separate tax levies. Your total tax rate is the sum of all applicable district rates, which is why rates vary significantly by location within the county.

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