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Updated 2025 Tax Year

Charles Mix County
Property Tax Guide

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

10 Official Sources
8 min read
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Quick Facts
Tax Rate
3.080% base county rate (varies by district with additional levies for schools, fire, special districts)
Exemptions
5+ Available
Section 1

How Property Tax Works

Charles Mix County, South Dakota operates under a property tax system that serves as the primary funding mechanism for essential county services, including road maintenance, law enforcement, emergency services, and county administration. The county's property tax rate for the 2025 levy year is 3.080%, which generates approximately $5,575,905 in General Fund property taxes to support these vital community services.

Property owners should understand that actual tax rates can vary significantly depending on your specific location within Charles Mix County due to additional special taxing districts such as school districts, fire districts, and other local improvement districts. These supplemental levies are added to the base county rate, meaning two properties of identical value in different areas of the county may have different total tax obligations.

The South Dakota property tax system operates on an assessment-based model where property values are assessed by the county assessor, and various tax credits may be available to qualifying property owners. However, most credits require annual application and are not automatically applied to your tax bill.

Section 2

What Makes Up Your Tax Bill

ComponentRate (per $1,000)Description
Base County Levy3.080General Fund operations for FY 2025
School DistrictVariesDepends on specific school district location
Fire DistrictVariesBased on fire protection district boundaries
Special AssessmentsVariesLocal improvement districts, if applicable
MunicipalVariesFor properties within city limits

Note: The 3.080 per $1,000 rate applies specifically to the 2025 levy year for Charles Mix County's General Fund. Your total effective rate will be higher when school district levies, fire district assessments, and any special district taxes are included. Property owners should verify their specific tax rate with the Charles Mix County Treasurer's office, as rates vary considerably by location within the county due to overlapping taxing jurisdictions.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Charles Mix 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 Charles Mix County are additional property tax assessments that occur when there are significant changes to property ownership, improvements, or new construction during the tax year. These taxes are calculated based on the difference between the old and new assessed values, prorated for the portion of the tax year the change was in effect.

Common triggers for supplemental taxes include: purchasing property that was previously exempt from taxation, completing new construction or major improvements that increase property value, or changes in property use that affect exemption status. The supplemental tax is calculated by applying the current tax rate to the increased assessed value for the remaining months in the tax year.

For example, if you complete a $50,000 home addition in Charles Mix County in January, and your total effective tax rate is 15.00 per $1,000 (including all districts), you would owe approximately $750 in supplemental taxes ($50,000 ÷ 1,000 × 15.00 = $750) for that tax year, in addition to your regular property tax bill.

Example Calculation

Property Value: $300,000

  • Assessed Value: $300,000
  • Less: Homestead Credit (if applied for): Varies
  • Net Taxable Value: ~$300,000
  • Annual Tax (3.080 base + districts ~12.00): $4,524
  • Monthly Escrow: $377

Property Value: $600,000

  • Assessed Value: $600,000
  • Less: Homestead Credit (if applied for): Varies
  • Net Taxable Value: ~$600,000
  • Annual Tax (estimated total rate 15.08): $9,048
  • Monthly Escrow: $754

Property Value: $1,000,000

  • Assessed Value: $1,000,000
  • Less: Available Credits (if applied for): Varies
  • Net Taxable Value: ~$1,000,000
  • Annual Tax (estimated total rate 15.08): $15,080
  • Monthly Escrow: $1,257

Important Note: These calculations use estimated total rates including school and special districts. Actual rates vary by specific location within Charles Mix County. All tax credits require separate application and are not automatically applied. Contact the county assessor for specific credit amounts and application requirements.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Charles Mix County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects 1/12 of your estimated annual property tax bill with each monthly mortgage payment, holding these funds in a dedicated escrow account until tax payments are due.

Charles Mix County property taxes are paid in two installments: the first installment is due by October 15th, and the second installment is due by April 15th of the following year. Your lender will make these payments directly to the Charles Mix County Treasurer's office on your behalf. Lenders are required to provide annual escrow statements showing deposits, payments made, and any surplus or shortage in your account.

Property owners should verify that their lender has current tax information, especially after assessments or rate changes. If your property taxes increase significantly, your lender may require an immediate escrow shortage payment or increase your monthly payment to cover the higher tax obligation. You can verify payments were made correctly by checking with the Charles Mix County Treasurer's office or accessing online payment records.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are Charles Mix County property taxes due for 2025? A: Property taxes are due in two installments - first installment by October 15th and second installment by April 15th of the following year. No deferments are allowed for property tax payments.

Q: What tax credits are available and do I need to apply? A: Various tax credits may be available including homestead credits for qualifying residents, but virtually all credits require annual application with the county assessor's office. Credits are not automatically applied to your tax bill - you must file the appropriate forms by the deadline.

Q: How does the homestead credit work in Charles Mix County? A: The homestead credit typically limits annual assessment increases rather than reducing market value. You must apply annually with the county assessor, and the credit caps how much your assessed value can increase year-over-year, usually around 10%. This is not an automatic benefit.

Q: How often are properties reassessed in Charles Mix County? A: Contact the Charles Mix County Assessor's office for the current assessment schedule and procedures, as assessment timing can vary based on property type and county policies.

Q: What are the penalties for late property tax payments? A: Late payments incur penalties and interest charges. Contact the Charles Mix County Treasurer's office at the earliest opportunity if you cannot make payments by the due dates to understand your options.

Q: Can I pay my property taxes online? A: Check with the Charles Mix County Treasurer's office for current online payment options and accepted payment methods, as these services may vary.

Q: Why is my tax rate different from my neighbor's? A: Tax rates vary significantly within Charles Mix County based on special taxing districts such as school districts, fire districts, and municipal boundaries. Two identical properties can have different tax obligations based on their location.

Q: How do I appeal my property assessment? A: Contact the Charles Mix County Assessor's office for information about the assessment appeal process, required documentation, and filing deadlines, which are typically strict and must be met to preserve your appeal rights.

Verified Sources

Backed by 10 Official Government Sources

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

01
2025-11-20 Minutes Signedcharlesmixcounty.gov
02
2025-03-13 Minutes Signedcharlesmixcounty.gov
03
Tax Doc
Tax-Rates.org — The 2024-2025 Tax Resourcemylrc.sdlegislature.gov
04
County
Charles Mix County Board of Commissioners Regular Sessioncharlesmixcounty.gov
05
Tax Doc
Concerns with Meeting Property Tax Deadlinesdor.sd.gov
06
Codified Law 7 | South Dakota Legislaturesdlegislature.gov
07
Tax Doc
Tax Exempt Propertymylrc.sdlegislature.gov
08
record(20-1-2026).docxapps.legislature.ky.gov
09
County
County Treasurers | South Dakota Department of Revenuedor.sd.gov
10
County
CHARLES MIX COUNTY AUDIT REPORT For the Two ...charlesmixcounty.gov
All sources verified as of 2025 Tax Year

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