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Updated 2025 Tax Year

Delaware County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
1.5% to 2.5% of assessed value (varies by taxing districts including schools, municipalities, townships)
Exemptions
4+ Available
Section 1

How Property Tax Works

Delaware County, Ohio operates on a property tax system that funds essential local services including schools, libraries, emergency services, and county operations. Property taxes are based on assessed values determined by the Delaware County Auditor, with taxes collected semi-annually. The effective tax rate in Delaware County typically ranges from approximately 1.5% to 2.5% of assessed value, though this varies significantly based on your specific location within the county.

Actual tax rates vary considerably throughout Delaware County due to different combinations of special taxing districts, including school districts, municipalities, townships, and special purpose districts like libraries and fire departments. Your specific tax rate depends on which taxing jurisdictions serve your property location. The Delaware County Auditor maintains current tax rate information for all districts within the county.

Section 2

What Makes Up Your Tax Bill

ComponentRate Range (per $1,000)Description
County General$2.00-$4.00Basic county operations and services
School Districts$25.00-$35.00Local school district operations and bonds
Municipal/Township$3.00-$8.00City or township services
Library$1.50-$2.50Public library systems
Fire/EMS$2.00-$5.00Fire protection and emergency services
Parks/Recreation$0.50-$2.00Parks and recreational facilities
Total Effective Rate$34.00-$56.50Combined rate varies by location

Note: These rates are estimates based on 2024 data. The 2025 tax rates are not yet finalized. Actual rates vary significantly by specific taxing districts within Delaware County. Contact the Delaware County Auditor for current rates applicable to your property location.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Delaware 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 Delaware County are additional property tax assessments that occur when there are changes in property ownership, new construction, or property improvements that increase assessed value during the tax year. These supplements ensure that property taxes reflect current assessed values rather than waiting for the next regular assessment cycle.

Supplemental taxes are calculated by applying the current tax rate to the difference between the new assessed value and the previous assessed value, prorated for the portion of the tax year remaining. For example, if you complete a $100,000 home addition in July and your effective tax rate is $45 per $1,000 of assessed value, your supplemental tax would be approximately $2,250 ($100,000 × 0.045), prorated for the remaining months in the tax year.

Example Calculation

Property Value: $300,000

  • Assessed Value: $300,000 (100% of market value)
  • Less: Homestead Credit (if applicable): -$25,000
  • Net Taxable Value: $275,000
  • Annual Tax (at $42/$1,000): $11,550
  • Monthly Payment: $963

Property Value: $600,000

  • Assessed Value: $600,000 (100% of market value)
  • Less: Homestead Credit (if applicable): -$25,000
  • Net Taxable Value: $575,000
  • Annual Tax (at $42/$1,000): $24,150
  • Monthly Payment: $2,013

Property Value: $1,000,000

  • Assessed Value: $1,000,000 (100% of market value)
  • Less: Homestead Credit (if applicable): -$25,000
  • Net Taxable Value: $975,000
  • Annual Tax (at $42/$1,000): $40,950
  • Monthly Payment: $3,413

Note: Tax credits require separate application and are not automatically applied. Calculations use estimated combined tax rate - actual rates vary by location within Delaware County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Delaware County require property tax escrow accounts, where monthly mortgage payments include 1/12th of your estimated annual property tax bill. Lenders pay your property taxes directly to Delaware County on the February 10th and July 10th due dates. Your lender will provide an annual escrow analysis showing tax payments made and any adjustments to your monthly escrow amount.

You can verify that your lender has paid your property taxes by checking your account status on the Delaware County Auditor's website or calling their office directly. If your taxes are escrowed, you should not pay them separately - doing so could result in overpayment. Keep your annual escrow statements for tax preparation purposes, as they document your property tax payments for potential federal and state tax deductions.

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 Delaware County property taxes due for 2026? A: First-half taxes are due February 10, 2026, and second-half taxes are due July 10, 2026. Payments are considered late if received after 4:30 PM on the due date.

Q: What tax credits are available and do I need to apply? A: The primary tax credit is the Homestead Credit for qualifying seniors (65+), disabled persons, and surviving spouses of public service officers. This credit requires annual application using form DTE 105A filed with the Delaware County Auditor. The credit caps assessment increases and must be applied for - it is not automatic.

Q: How does the Homestead Credit work? A: The Homestead Credit limits annual assessment increases on your homestead to a maximum percentage, providing tax relief by preventing large year-over-year tax increases. It does not reduce your property's market value but caps how much your assessed value can increase annually. You must file form DTE 105A with the Delaware County Auditor to receive this credit.

Q: How often are properties reassessed in Delaware County? A: Ohio requires county-wide property reappraisals every six years, with interim updates every three years. Delaware County follows this schedule, with the most recent county-wide reappraisal determining current assessed values. Property owners receive notification when their property is reassessed.

Q: How do I appeal my property assessment? A: File a complaint with the Delaware County Board of Revision by March 31st following the tax lien date (typically March 31st of the tax year). You must provide evidence that your property's assessed value exceeds its fair market value. Contact the Delaware County Auditor for specific appeal procedures and forms.

Q: What are the penalties for late property tax payments? A: Delaware County charges penalties and interest on late property tax payments. Interest accrues daily from the due date, and additional penalties may apply. Contact the Delaware County Treasurer for specific penalty rates and payment options.

Q: Can I pay my property taxes online? A: Yes, Delaware County offers online property tax payment through their official website. You can pay by electronic check or credit card, though credit card payments may include processing fees. Visit the Delaware County Treasurer's website for secure online payment options.

Q: Why do property tax rates vary within Delaware County? A: Tax rates vary because different areas are served by different combinations of taxing districts including school districts, municipalities, townships, fire districts, and library systems. Each district sets its own levy rate based on local needs and voter-approved tax issues, resulting in different total effective rates throughout the county.

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