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Updated 2025 Tax Year

Corson County
Property Tax Guide

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

9 Official Sources
8 min read
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Quick Facts
Tax Rate
Varies by district, typically around 1% base rate plus additional levies for schools and special districts
Exemptions
5+ Available
Section 1

How Property Tax Works

Corson County, South Dakota operates under the state's property tax system, which serves as the primary funding mechanism for local services including schools, county operations, emergency services, and infrastructure maintenance. Property taxes in Corson County are assessed annually based on the property's assessed value, which is determined by the county assessor's office using market-based valuation methods.

The effective property tax rate in Corson County varies significantly depending on your specific location within the county due to overlapping special taxing districts such as school districts, fire districts, and other local improvement districts. While South Dakota's statewide average hovers around 1% of assessed value, your actual rate in Corson County may be higher or lower based on these local district assessments. Property owners should note that most tax credits and exemptions require formal application and are not automatically applied to your tax bill.

Section 2

What Makes Up Your Tax Bill

Note: Specific FY 2025-2026 levy rates for Corson County are not currently available. Contact the Corson County Treasurer for current rates.

ComponentEstimated RateDescription
County GeneralTBDBasic county services and operations
School DistrictTBDLocal school district funding (varies by district)
Township/MunicipalTBDLocal municipal services (if applicable)
Special DistrictsTBDFire districts, library districts, etc.
Total EstimatedTBDCombined rate varies by location

Rates shown are per $1,000 of assessed valuation and vary significantly by specific address due to different combinations of special taxing districts throughout Corson County.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Corson 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 property taxes in Corson County are triggered by changes in property ownership, new construction, or improvements that increase a property's assessed value during the tax year. When these events occur, the county assessor calculates the difference between the old and new assessed values and applies the current tax rate to determine the supplemental tax amount.

For example, if you complete a $50,000 home addition in March and your property tax rate is 15 mills ($15 per $1,000 of assessed value), you would owe approximately $750 in supplemental taxes prorated from the completion date through the end of the tax year. Supplemental tax bills are typically issued within 30-60 days of the assessment change and have separate due dates from your regular property tax payments.

Example Calculation

Example calculations below use estimated rates - contact Corson County Treasurer for actual current rates.

Property Value: $300,000

  • Assessed Value: $300,000
  • Less: Homestead Credit (if eligible): -$4,000 assessment cap benefit
  • Net Taxable Value: ~$296,000
  • Annual Tax (est. 15 mills): $4,440
  • Monthly Escrow: $370

Property Value: $600,000

  • Assessed Value: $600,000
  • Less: Homestead Credit (if eligible): -$4,000 assessment cap benefit
  • Net Taxable Value: ~$596,000
  • Annual Tax (est. 15 mills): $8,940
  • Monthly Escrow: $745

Property Value: $1,000,000

  • Assessed Value: $1,000,000
  • Less: Homestead Credit (if eligible): -$4,000 assessment cap benefit
  • Net Taxable Value: ~$996,000
  • Annual Tax (est. 15 mills): $14,940
  • Monthly Escrow: $1,245

All credits require application and approval. Actual rates vary by location within the county.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Corson County require property tax escrow accounts, where monthly mortgage payments include 1/12th of your estimated annual property tax bill. The lender holds these funds and pays your property taxes directly to Corson County when due. Lenders typically collect a 2-3 month cushion to account for tax increases and payment timing.

Property tax payments in South Dakota are generally due in two installments, with specific dates varying by county. Your lender will receive tax bills directly and should pay them on time to avoid penalties. You'll receive an annual escrow analysis showing how your payments were used and any adjustments needed for the coming year. Always verify that your lender has made payments correctly by checking with the Corson County Treasurer's office, as you remain ultimately responsible for ensuring taxes are paid even when using escrow.

How HonestCasa Helps
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Section 6

Frequently Asked Questions

Q: When are property taxes due in Corson County for FY 2025-2026? A: Contact the Corson County Treasurer at [county office] for specific due dates, as payment schedules vary by county in South Dakota.

Q: What tax credits are available and how do I apply? A: South Dakota offers various tax credits including homestead credits for owner-occupied properties. All credits require formal application through the county assessor's office before specified deadlines.

Q: How does the homestead credit work? A: The homestead credit limits annual assessment increases rather than reducing market value. You must file an application with the county assessor's office and reapply as required to maintain eligibility.

Q: How often are properties reassessed? A: Contact the Corson County Assessor's office for their specific reassessment schedule and procedures for appealing assessments.

Q: What are the penalties for late payment? A: Late payment penalties and interest rates are set by state law and county policy. Contact the Corson County Treasurer for current penalty schedules.

Q: Can I pay my property taxes online? A: Check with the Corson County Treasurer's office for available online payment options and accepted payment methods.

Q: Why do property tax rates vary within the county? A: Different combinations of school districts, fire districts, library districts, and other special taxing districts create varying total tax rates depending on your property's location.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the county Board of Equalization within specified timeframes. Contact the Corson County Assessor's office for appeal procedures and deadlines.

Verified Sources

Backed by 9 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
Tax Doc
Tax-Rates.org — The 2024-2025 Tax Resourcemylrc.sdlegislature.gov
02
Tax Doc
Calculating the Dollars Needed to Reduce Property Taxesmylrc.sdlegislature.gov
03
County
Corson County Commission Proceedingscorsoncountysd.gov
04
Sheet1sandiego.gov
05
Tax Doc
Tax Exempt Propertymylrc.sdlegislature.gov
06
County
County Treasurers | South Dakota Department of Revenuedor.sd.gov
07
County
Corson County Commission Proceedingscorsoncountysd.gov
08
County
CORSON COUNTY AUDIT REPORT For the Two Years ...corsoncountysd.gov
09
County
Exhibits and Appendices to County Revenues and ...mylrc.sdlegislature.gov
All sources verified as of 2025 Tax Year

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