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Updated 2025 Tax Year

Allegan County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
25-45 mills (2.5-4.5% of assessed value), varies by school district and special taxing authorities
1st Due
Sep 19
2nd Due
Feb 14
Exemptions
5+ Available
Section 1

How Property Tax Works

Allegan County property taxes are the primary funding mechanism for essential local services including public schools, county operations, municipal services, and special districts. Property owners pay taxes based on their property's assessed value multiplied by the applicable tax rate, which varies significantly by location within the county due to different combinations of school districts, municipalities, and special taxing authorities.

The property tax system in Allegan County operates on a split payment schedule with summer taxes due September 19 and winter taxes due February 14. Tax rates typically range from approximately 25 to 45 mills (2.5% to 4.5% of assessed value) depending on your specific location and the special taxing districts that serve your property. The 2025 tax rates are still being finalized by the Michigan Legislature, with potential increases proposed for library funding, road improvements, and school operations that could affect your total tax burden.

Section 2

What Makes Up Your Tax Bill

ComponentEstimated RateDescription
County Operating4.5-6.0 millsBasic county services, courts, sheriff
School Operating18-24 millsLocal school district operations
School Debt2-8 millsVaries by district bond obligations
Municipal/Township1-4 millsCity or township services
Library0.5-2.0 millsPublic library systems
Road Commission1-3 millsRoad maintenance and improvements
Special Assessments0-5 millsFire, ambulance, parks, other districts
Total Estimated Range27-48 millsActual rate depends on location

Note: These are estimated ranges for the 2024-2025 levy year. Final 2025 rates are pending legislative approval. Your actual rate depends on your specific combination of taxing authorities and may include additional special district assessments not listed above.

Section 3

When Are Property Taxes Due?

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

First Installment
Sep 19
Delinquent after Dec 10
Second Installment
Feb 14
Delinquent after Apr 10
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 Allegan County are additional tax bills issued when there are changes in property ownership, new construction completion, or property improvements that weren't captured in the regular assessment cycle. These supplemental bills are calculated based on the difference between the old and new assessed values, multiplied by your area's tax rate, and prorated for the remaining months in the tax year.

For example, if you complete a $100,000 home addition in March and your local tax rate is 35 mills, the supplemental tax would be approximately $3,500 × 75% (9 months remaining) = $2,625. The county assessor's office will mail supplemental bills separately from regular tax bills, typically within 60-90 days of discovering the change in property value or ownership transfer.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $150,000 (50% of market value)
  • Less: Principal Residence Exemption: $18,000
  • Net Taxable Value: $132,000
  • Tax Rate: 32 mills
  • Annual Tax: $4,224
  • Monthly Escrow: $352

Example 2: $600,000 Home

  • Assessed Value: $300,000 (50% of market value)
  • Less: Principal Residence Exemption: $18,000
  • Net Taxable Value: $282,000
  • Tax Rate: 35 mills
  • Annual Tax: $9,870
  • Monthly Escrow: $823

Example 3: $1,000,000 Home

  • Assessed Value: $500,000 (50% of market value)
  • Less: Principal Residence Exemption: $18,000
  • Net Taxable Value: $482,000
  • Tax Rate: 38 mills
  • Annual Tax: $18,316
  • Monthly Escrow: $1,526

Note: Principal Residence Exemption requires annual application and caps assessment increases. Additional tax credits may be available for qualifying homeowners but require separate applications.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Allegan County require property tax escrow accounts to ensure timely payment of your tax obligations. Your lender collects monthly payments equal to 1/12 of your estimated annual tax bill, holds these funds in escrow, and pays your summer and winter tax bills directly to the county treasurer. Lenders typically collect an additional 2-3 months of taxes at closing to establish the escrow account cushion.

Your lender will provide an annual escrow analysis statement showing the account activity and any required payment adjustments. If your taxes increase due to reassessment or millage changes, your monthly payment will be adjusted accordingly. Property owners can verify their escrow payments by checking their tax bills online through the Allegan County Treasurer's website or by contacting the treasurer's office directly. Homeowners who pay off their mortgages become responsible for making direct tax payments and will receive bills mailed to their property address.

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 Allegan County property taxes due for 2024-2025? A: Summer taxes are due by September 19, 2024, and winter taxes are due by February 14, 2025. Payments made after March 1, 2025, must be made to the county treasurer's office.

Q: What tax credits are available and do they require applications? A: The Principal Residence Exemption is the most common credit, requiring annual application to cap assessment increases. Additional credits may include Senior/Disabled Person exemptions and Veterans exemptions - all require separate applications with specific deadlines.

Q: How does the Homestead (Principal Residence) exemption work? A: This credit limits annual assessment increases to 5% or inflation rate (whichever is lower) rather than reducing market value. You must file Form 2368 annually and occupy the property as your primary residence to qualify.

Q: How often are properties reassessed in Allegan County? A: Properties are reassessed annually with state equalization factors applied. Major market reassessments typically occur every 3-5 years, with appeals due by the second Monday in March following the assessment notice.

Q: What are the penalties for late property tax payments? A: Late payments incur interest charges and collection fees. Summer taxes paid after September 19 and winter taxes paid after February 14 are subject to penalty and interest charges that compound monthly.

Q: Can I pay my property taxes online? A: Yes, most Allegan County communities offer online payment options through their treasurer's websites. Contact your local treasurer's office or visit the Allegan County website for specific payment portals and accepted methods.

Q: Why do tax rates vary within Allegan County? A: Different combinations of school districts, municipalities, fire departments, libraries, and other special taxing authorities create varying total millage rates across the county, potentially differing by 10-20 mills between locations.

Q: What if I disagree with my property assessment? A: You can appeal to your local Board of Review, typically meeting in March. If unsatisfied, appeals can proceed to the Michigan Tax Tribunal. Assessment notices include specific appeal deadlines and procedures.

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