What is the Ohio property tax assessment ratio?

Ohio law sets taxable value at 35% of market (true) value statewide, under Ohio Revised Code §5713.03. Your county auditor must use this ratio when calculating your tax bill.

How much is the Ohio Homestead Reduction in 2026?

For tax year 2026, the general Homestead Reduction shields $29,000 of market value for qualifying owners age 65+, totally disabled, or surviving spouses age 59+ with Ohio Adjusted Gross Income under $41,000. The enhanced amount for 100% disabled veterans and surviving spouses of public-safety officers killed in the line of duty is $58,000 with no income limit. File DTE Form 105A with your county auditor.

When is the Ohio Board of Revision deadline?

Ohio's statutory Board of Revision (BOR) complaint deadline is March 31 for the prior tax year, per ORC §5715.19. Complaints are filed using DTE Form 1 with your county auditor at no cost. Late filings are rejected except in very narrow clerical-error circumstances.

How much is the Ohio real property conveyance fee?

Ohio's conveyance fee has two parts: a mandatory $1.00 per $1,000 state fee (ORC §319.54(F)(3)) and a permissive county levy of up to $3.00 per $1,000 (ORC §322.02). Most Ohio counties charge the full $4.00 per $1,000. A separate $0.50 transfer fee applies per parcel. Filed using DTE Form 100 at the auditor's office at closing.

Who qualifies for Ohio's CAUV agricultural tax break?

Ohio's Current Agricultural Use Value (CAUV) program lets actively farmed land be taxed on its agricultural value rather than its market value. Eligibility requires 10+ acres devoted exclusively to commercial agriculture, or smaller parcels with $2,500+ in gross annual income from agriculture. Apply using DTE Form 109 and renew annually with DTE 109A. Removing land from CAUV triggers recoupment of three years of saved taxes under ORC §5713.34.

Miami County Auditor Property Search (Ohio) Parcel Lookup, Tax Records, GIS Map & Owner Search

Q: How to search property records in Miami County Ohio?

Visit the official Auditor website and search by owner name, parcel number, or address.

Looking to access Miami County property records in Ohio? The official Miami County Auditor Property Search system allows you to find verified data such as ownership details, parcel numbers, tax records, and property valuation.

This guide is written to help real users complete tasks step-by-step. Whether you want to check ownership, verify tax dues, or explore land boundaries using GIS maps, everything is explained clearly with practical insights.

All links below are official government sources only. No third-party platforms are used.

Quick Access – Miami County Auditor Property Tools

🔎 Property Search (Auditor Official Portal) 💳 Pay Property Tax (Treasurer Office) 🗺️ GIS Parcel Map Viewer 📄 Miami County Official Website

How to Use Miami County Auditor Property Search (Step-by-Step)

Open the official Auditor website: Visit Property Search Portal
Click on Property Search or Real Estate Search
Enter search details:
- Owner Name (start with last name)
- Parcel Number (most accurate)
- Property Address (keep simple)
Click search and review results
Select your property to open full details

Real Tip: If address search fails, remove “Street”, “Road”, or “Avenue” and try again.

Advanced Insight: Parcel number search is best when verifying property before purchase or legal use.

Miami County Auditor Office Details

Office Name	Miami County Auditor
Address	201 West Main Street, Troy, OH 45373 (Verify from official website)
Phone	(937) 440-5925 (Verify from official website)
Website	https://www.miamicountyauditor.org/

Miami County Auditor Office Location Map

What You Can Find in Miami County Property Records

Property owner name and mailing address
Parcel ID and legal description
Market and assessed value
Property tax details and payment history
Land size, structure details, and property type

Real Insight: Always check both land value and building value separately when analysing property.

Miami County Property Records Search by Name

This method is useful when you don’t know parcel number.

Enter last name first
Use partial name for broader results
Filter results if needed

Tip: Try different spelling variations for better accuracy.

Miami County Parcel Lookup by Parcel Number

Parcel lookup gives the most accurate result.

Enter full parcel number
Avoid spaces if system does not accept them

Expert Tip: Always use parcel number for legal verification and tax payments.

Miami County Property Tax Records and Payment

👉 Pay Property Tax Online

Enter parcel number
Check due amount
Verify penalties if late
Complete payment

Tip: Always save your payment receipt for records.

Miami County GIS Map Property Search

👉 Open GIS Map

Zoom into location
Click on parcel
View ownership and land details

Real Insight: GIS maps are useful to verify boundaries and nearby land usage.

Miami County Property Value and Assessment

Property values are calculated based on market trends and comparable sales.

Insight: Higher assessed value means higher tax liability.

Miami County Homestead Exemption Guide

👉 Apply via Auditor website: Apply Here

Tip: Check eligibility before applying to avoid rejection.

Common Problems and Solutions

No result: Try partial search
Wrong property: Use parcel ID
Payment issue: Contact Treasurer office

Search Accuracy Tips

Use parcel number for exact match
Keep address simple
Check spelling carefully

Official Government Resources

Frequently Asked Questions

How to search property records in Miami County Ohio?

Use the official Auditor website and search by name, parcel number, or address.

How to find parcel number?

Check tax bill, deed, or GIS map.

How to check property owner?

Search using owner name or parcel number.

How to pay property tax?

Use Treasurer website and pay online.

What is property assessment?

It is value used for tax calculation.

How to use GIS map?

Click parcel on map to view details.

Why property not showing?

Try different search format.

How to apply for homestead exemption?

Apply through Auditor website.

Can I search property by address?

Yes, use simple format.

Who maintains property records?

The County Auditor office.

Khushboo Bobade

Khushboo Bobade is the editor and digital publisher of CountyAuditors.org. She oversees the research and editorial process for the website, ensuring that information about county auditor offices, property records, and government resources is accurate, verified, and easy for visitors to understand.

Ohio Auditor Tools · Tax Year 2026

10 Ohio Property Tax Calculators & Auditor Tools

Built specifically for Ohio's 35% assessment ratio, current DTE forms, and 2026 Homestead, Owner-Occupancy, CAUV, Conveyance Fee, and Board of Revision rules. Every number reflects verified Ohio Department of Taxation amounts.

Homestead: $29,000 Enhanced Vet: $58,000 OAGI limit: $41,000 Assessment: 35% of market BOR filing: Free · DTE 1

Annual Tax Bill Estimator

OHIO

Applies Ohio's 35% assessment ratio plus your county's effective millage tier — the actual math your auditor uses.

County tier

Your effective rate (%)

Market (appraised) value ($)

Pick a county tier and enter your market value.

Homestead Reduction Calculator

DTE 105A

2026 Ohio Homestead: $29,000 general or $58,000 enhanced (100% disabled vet, KIA spouse). OAGI under $41,000 required for non-veteran applicants.

Exemption type

Home market value ($)

County effective rate (%)

Pick your situation and enter your home value.

Owner-Occupancy & Non-Business Credits

DTE 105C

Every Ohio owner-occupied home qualifies for the 2.5% Owner-Occupancy Credit plus the automatic 10% Non-Business Credit. Most owners don't realize these stack.

Current annual property tax ($)

Enter your annual tax to see both credit amounts.

Conveyance Fee Calculator

ORC 322

When you sell or transfer Ohio property, the auditor collects $1 state + up to $3 county per $1,000, plus $0.50 per parcel. Counties choose their rate.

Sale / consideration price ($)

County fee rate

Number of parcels

Enter sale price and pick your county rate.

CAUV Agricultural Savings

DTE 109

Ohio's Current Agricultural Use Value cuts taxable value dramatically for farmland (10+ acres, or smaller with $2,500+ annual gross income).

Market value of farmland ($)

CAUV value (from auditor) ($)

County effective rate (%)

Enter both market and CAUV values to see savings.

Mill Rate Converter

Ohio tax rates appear three ways on auditor sites: mills, percent, or dollars per $1,000. Convert between them instantly.

Convert from

Value

Enter a rate to see all three forms.

Parcel Number Cleaner

Ohio's 88 counties each format parcels differently — Franklin uses 010-123456-00, Cuyahoga uses 001-23-456, Hamilton uses 100-0001-0001-00. Auto-detects.

Parcel / APN / PIN

Paste any Ohio county parcel to format it.

35% Ratio Sanity Check

Ohio law sets taxable value at 35% of market value. If yours is significantly higher, you're a strong BOR appeal candidate.

Taxable value (from tax bill) ($)

Likely market value ($)

Enter both values to compare against Ohio's 35% target.

BOR Appeal Savings

DTE 1

A successful Board of Revision complaint typically cuts your value 10–20%. Filing is free and stays in effect until the next reappraisal.

Current annual tax ($)

Likely value reduction

Enter your tax bill and reduction estimate.

BOR Deadline Countdown

MAR 31

Ohio's statutory Board of Revision filing deadline is March 31 for the prior tax year. Miss it and you wait until next year — no extensions.

Filing deadline (default March 31)

Set your deadline to start the countdown.

Verify with the official Ohio source

These calculators use the verified 2026 Ohio Department of Taxation amounts and statutory rules. For your exact bill, exemption status, and county-specific deadlines, always confirm with your county auditor and the Ohio Revised Code:

Ohio Dept. of Taxation — Real Property DTE Forms (105A, 105C, 1, 109) ORC 5715 — Board of Revision ORC 5713 — Taxable Real Property ORC 322.02 — Conveyance Fee ORC 319.54(F)(3) — State Fee ORC 5713.30 — CAUV tax.ohio.gov — Main Portal

Estimates use Ohio's 35% statutory assessment ratio and effective tax rate tiers averaged across major Ohio counties. Your actual bill depends on local school levies, voted millage, inside vs. outside millage splits, House Bill 920 reduction factors (HB 920), and special assessments. The 2026 Homestead general amount ($29,000) and enhanced amount ($58,000) reflect HB 187 inflation indexing — your county auditor's office may show slightly different transitional figures. Nothing here is legal or tax advice. CountyAuditors.org is an independent informational directory, not affiliated with any county government.