HonestCasa logoHonestCasa
All Tax Guides
Updated 2025 Tax Year

Mineral County
Property Tax Guide

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

10 Official Sources
8 min read
Calculate Your True CostMortgage Calculator
Quick Facts
Tax Rate
1.2%-1.8% of assessed value (varies by taxing district)
Exemptions
4+ Available
Section 1

How Property Tax Works

Mineral County, Colorado operates under the state's property tax system to fund essential local services including schools, fire protection, roads, and county government operations. Property taxes in Mineral County are calculated based on the assessed value of your property multiplied by the local mill levy rate. The effective tax rate typically ranges from 1.2% to 1.8% of assessed value, depending on your specific location within the county and the special taxing districts that serve your property.

Property tax rates vary significantly by location within Mineral County due to different combinations of special taxing districts, including school districts, fire protection districts, water and sanitation districts, and other local improvement districts. Your actual tax bill depends on which of these districts serve your specific property address. The county assessor determines property values, while various local government entities set their individual mill levies each year to fund their operations and capital projects.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
County General13.980County government operations, roads, courts
School DistrictVariesK-12 education funding (rate varies by district)
City/Municipal8.752Municipal services (where applicable)
Fire ProtectionVariesFire and emergency services
Water/SanitationVariesWater and sewer services
Special DistrictsVariesLibrary, parks, transportation, other services

Note: These rates apply to the 2024 tax year (payable in 2025). Actual rates vary by property location and applicable taxing districts. The 2025 tax rates have not yet been finalized by the county board. Total effective rates typically range from 35-55 mills depending on location and applicable districts.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Mineral 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 Mineral County are triggered by changes in property ownership, new construction, or major improvements that increase a property's assessed value during the tax year. When these events occur after the January 1 assessment date, a supplemental tax bill is issued to account for the increased value for the remainder of the tax year.

The supplemental tax is calculated by taking the difference between the new assessed value and the previous assessed value, multiplying by the applicable tax rate, then prorating for the remaining months in the tax year. For example, if you purchase a home in July that was previously assessed at $180,000 but now has a market value requiring a $240,000 assessment, you would owe supplemental taxes on the $60,000 difference in assessed value for the remaining 6 months of that tax year.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (6.4% residential rate for 2025): $19,200
  • Less: Senior/Disabled Veteran Credit (if applicable): -$0 (application required)
  • Net Taxable Value: $19,200
  • Annual Tax (at 45 mills average): $864
  • Monthly Escrow: $72

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (6.4% residential rate for 2025): $38,400
  • Less: Senior Homestead Credit (if applicable): Variable (application required)
  • Net Taxable Value: $38,400
  • Annual Tax (at 45 mills average): $1,728
  • Monthly Escrow: $144

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (6.4% residential rate for 2025): $64,000
  • Less: Available Credits (if applicable): Variable (application required)
  • Net Taxable Value: $64,000
  • Annual Tax (at 45 mills average): $2,880
  • Monthly Escrow: $240

Note: Credits require separate applications and eligibility verification. Actual rates vary by specific taxing districts serving your property.

See How Taxes Affect Your Payment

Property taxes are just part of your total monthly cost. Get the full picture.

Calculate Now
Section 5

Escrow & Property Taxes

Most mortgage lenders in Mineral 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 each month along with your mortgage payment. The lender maintains these funds in an escrow account and pays your property taxes directly to the county treasurer when due.

Property taxes in Mineral County are due April 15th each year, with a final deadline of October 15th. Lenders typically pay the full amount by the April deadline to avoid any late fees. Your lender will provide an annual escrow analysis showing the previous year's tax payments and any adjustments needed for the coming year. If your property taxes increase significantly due to reassessment or rate changes, your monthly escrow payment may be adjusted accordingly. You can verify that your taxes were paid correctly by checking with the Mineral County Treasurer's office at (719) 658-2669.

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 property taxes due in Mineral County for 2025? A: Property taxes are due April 15, 2025, with a final payment deadline of October 15, 2025. The Notice of Valuation is mailed by May 1 each year.

Q: What tax credits are available and do they require application? A: Available tax credits include the Senior Homestead Credit, Disabled Veteran Credit (50% on first $200,000 of value), and Gold Star Spouse Credit. All credits require separate applications to the county assessor and are NOT automatic.

Q: How does the Homestead Credit work? A: The Senior Homestead Credit caps the annual increase in assessed value for qualifying seniors, rather than reducing market value. You must apply annually with the county assessor, and the property must be your primary residence as of January 1.

Q: When are properties reassessed? A: Colorado conducts property reassessments every two years. The most recent reassessment was in 2023, with the next scheduled for 2025. You can appeal your assessed value within 30 days of receiving your Notice of Valuation.

Q: What are the penalties for late payment? A: Late payments incur interest and penalties. Contact the Mineral County Treasurer at (719) 658-2669 for specific penalty rates and payment options if you miss the deadlines.

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

Q: Why do tax rates vary within the county? A: Different areas are served by different combinations of special districts (fire, water, library, etc.), each with their own mill levy, creating varying total tax rates across the county.

Q: What is the application deadline for tax credits? A: Most tax credit applications must be filed by June 15 for the current tax year. Veteran and Gold Star Spouse exemption applications are sent directly to the county assessor and should be filed as early as possible in the year.

Verified Sources

Backed by 10 Official Government Sources

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

01
Tax Doc
Understanding Property Taxes in Colorado 2026douglas.co.us
02
County
Severed Minerals | Delta County, CO - Official Websitedeltacountyco.gov
03
Tax Doc
Notice About 2025 Tax Ratesmineralwellstx.gov
04
Appendix A: Direct Distribution Calendardlg.colorado.gov
05
Special District Compliance Calendardlg.colorado.gov
06
Tax Doc
Understanding Property Taxes in Colorado 2026. ...arapahoeco.gov
07
Tax Doc
Property Tax Exemptionvets.colorado.gov
08
County
Mineral County Assessordpt.colorado.gov
09
REBATES AND DEFERRALSspl.cde.state.co.us
10
HB 24B-1001 - Final Fiscal Notecontent.leg.colorado.gov
All sources verified as of 2025 Tax Year

See the Full Picture of Your Home Costs

Property taxes are just one piece of homeownership. HonestCasa helps you understand your total monthly cost and explore safe ways to access your home equity.

Total Monthly Cost

Mortgage + taxes + insurance + HOA

Equity Growth

Track how your equity grows over time

Safe Equity Access

Options for projects or debt payoff

Run Your ScenarioTry Calculator

Free • No credit check • 2-minute estimate