Darke County Auditor Property Search: Records, Maps & Tax

by
Darke County, Ohio · Parcel, value, map, sales, tax and deed guidance

Find a Parcel, Map, Value or Tax Record

Search Darke County property records by owner name, parcel number or street address, then use the complete parcel page to review land, buildings, appraised value, assessed value, sales, tax credits, special assessments and the current amount due.

This guide explains what to enter, how to use advanced search filters, why a parcel may not appear, how the official map and sales tools work, and when to contact the Auditor, Treasurer, Engineer, Recorder or Board of Revision.

Read the quick answer Follow exact search steps Fix a failed search
Confirm the parcel before relying on the information. Match the parcel number and property location—not only a same-name owner. The Auditor website states that online information is supplied for reference and can contain technical or typographical errors.

Quick answer: use Advanced Search first

Open Darke County’s official Advanced Search, use one owner, parcel or address field for the first search, open the matching parcel, and save its full parcel number. The same parcel page can then lead you to maps, sales, tax details and the Tax Payment Cart.

1 Search with one clue Surname, parcel number or simplified address.
2 Verify the parcel Match location, owner and parcel number.
3 Read the full record Review value, tax, sales and improvements.
4 Use the action office Treasurer, Recorder, Engineer or BOR.

Ten fast Darke County property facts

Owner format Last name, then first name
Exact identifier Full county parcel number
Advanced filters Sales, district, land and building criteria
Map tool Official parcel-location viewer
Tax estimator 2025 taxes payable in 2026
Payment cart Add a parcel from its Tax section
Auditor Carol Ginn
Auditor phone 937-547-7310
Real Estate 937-547-7308
Office 504 S. Broadway, Greenville

After preparing one clean search term, open the official Advanced Search. Select the owner, parcel or address method, enter the minimum information needed and compare all plausible results before opening a parcel.

Open official Advanced Search Open Auditor and Treasurer portal

Choose the property question you need to solve

The guide is arranged by user task rather than as a directory of county links.

Office-routing guide

Which Darke County office handles your task?

The Auditor and Treasurer share the property portal, but other offices control deeds, legal descriptions, transfers and formal valuation complaints.

Correct office or official tool for each property task
What you need
Use
What it provides
Important limit
Owner, address, parcel or property value
Auditor Advanced Search
Parcel, appraisal, land, building, sale and tax information.
Not legal proof of ownership.
Property location or neighbouring parcels
Official Map
Visual parcel and road context.
Not a boundary survey.
Recent sales or comparable evidence
Sales Report, Sales List or Advanced Search
Date ranges, valid-sale filters, prices and CSV exports.
Not every recorded transfer is a market sale.
Tax estimate
2025 Tax Estimator
Estimate by appraised value, tax district, property type and reductions.
Not the final payment balance.
Tax payment, receipt or delinquency
Treasurer / Payment Cart
Tax collection, parcel payment and balance help.
The Auditor cannot confirm payment posting.
Deed, mortgage, lien or easement
Recorder / AVA
Recorded land-document indexes and images.
Public search is not a title opinion.
Tax map, legal description, lot split or annexation
Engineer / Map Office
Tax-map maintenance and boundary-description review.
A licensed survey may still be required.
Challenge property value
Board of Revision
DTE 1 complaint, inspection, settlement and hearing process.
Cannot change a tax rate merely because the bill increased.
Fastest workflow: Identify the property in Advanced Search, copy the full parcel number, save the printable record and use that number for every later call, form, map or deed search.
Buyer, appraiser and appeal research

Use Darke County advanced filters correctly

Advanced Search is useful when you do not know one exact parcel or when you need a group of comparable sales, properties or land records.

Advanced-search filters and their practical use
Filter
What it searches
Useful for
Mistake to avoid
Sale Date From / To
Transfers inside a chosen date range.
Recent market research and BOR evidence.
Using sales far from the relevant valuation date.
Sale Price From / To
Transfers between selected prices.
Separating typical home sales from very low or high transfers.
Treating a low-price family transfer as a market sale.
Buyer / Seller Name
Transactions involving a named party.
Recent buyer, seller, estate, investor or company activity.
Entering an overly long legal entity name.
Valid Sale
Sales marked valid, invalid or either.
Start with valid sales for market comparisons.
Assuming every deed transfer is arm’s length.
Tax District
The parcel’s taxing-district code.
Comparing properties with similar taxing authorities.
Comparing bills from different districts without noticing.
Township / School District / Neighborhood
Official county location groupings.
Narrow local property and sale research.
Relying only on the mailing-city name.
Land Property Class
Residential, agricultural, commercial or other classifications.
Separating homes, farms, vacant land and business property.
Mixing unlike property uses.
Acreage From / To
Parcels within an acreage range.
Farm, rural-home and vacant-land comparisons.
Ignoring building and homesite differences.
Year Built / Living Area
Residential building age and size.
Finding physically similar homes.
Using size alone without condition and location.
Bedrooms / Baths
Residential feature ranges.
Narrowing common home types.
Assuming the public feature count is always current.
Best comparable-search order: Set a recent date range, select Valid Sale, choose a similar location or tax district, then narrow acreage, year built and living area.
Search troubleshooting

No Darke County property result found?

Follow these fixes before assuming the parcel is missing or paying a third-party records website.

Owner name returned nothing Search only the surname or one distinctive word from the trust, estate, LLC or farm name.
Address returned nothing Keep the house number and street name but remove direction and street type.
Parcel number failed Recheck every character and search by owner or address to locate a current number.
The property recently sold Search the seller or former owner and then verify the deed through the Recorder.
The parcel was split or combined Search the owner and surrounding map area, then call Real Estate or the Engineer.
The rural address is unclear Use a road name, owner name or parcel number and verify the parcel on the map.
The mailing address is outside Darke County The owner’s mailing address can differ from the property location; compare the legal and map information.
The map lacks a clear boundary Contact the Map Office or Engineer with the parcel, address, legal description and township-section references.

Prepare this information before calling

Full property address or road
Current and former owner names
Current or old parcel number
Approximate transfer date
Township, school district or nearby intersection
Screenshot of the failed result
Useful Real Estate call script “I am trying to identify the property at [address or road]. The current or former owner may be [name], and I have [parcel number or deed reference]. Can you confirm whether the parcel was transferred, divided, combined or renumbered?”
Call Real Estate: 937-547-7308 Call Auditor: 937-547-7310
Parcel-page decoder

Understand the Darke County property record

A parcel page can contain several years of valuation and tax information. Select the correct tax year before comparing numbers.

Property-record fields and the correct next action
Field
What it means
What to check next
Parcel number
The county identifier for the parcel.
Use it for payment, maps, Recorder research and forms.
Owner
The owner name currently displayed in the Auditor record.
Use the recorded deed when legal ownership proof is needed.
Address
The property or situs address associated with the parcel.
Compare the map when the address is rural or incomplete.
Legal description
An abbreviated parcel-description reference.
Use the deed or approved legal description for legal work.
School district / Tax district
The taxing-authority combination attached to the parcel.
Use the tax district in the Tax Estimator.
Acreage
The land area carried in the parcel record.
Check the deed or survey when exact acreage matters.
Appraised land and improvements
The Auditor’s estimated market values for land and buildings.
Verify land use, building facts, age, condition and outbuildings.
Assessed value
Generally 35% of appraised value under Ohio property-tax rules.
Use it to understand taxable valuation, not market price.
CAUV
Agricultural-use valuation when the land qualifies.
Check renewal and recoupment before changing use.
Most recent sales
Recorded transfer date, parties, price and validity indicator.
Open the Recorder record for the legal instrument.
Taxable value
Value used in the parcel’s tax calculation.
Compare it with credits, reductions, rate and assessments.
Tax rate / Effective tax rate
Full and adjusted rate information for the parcel’s district.
Do not compare rates from different taxing districts.
Special assessments
Charges separate from ordinary property-tax levies.
Identify the assessment before filing a value complaint.
Inflation Cap Credit
A current parcel-specific credit line that may appear under HB 186.
Verify whether it appears on the selected parcel and tax year.

Check physical property details before disputing value

Land details
  • Acreage and land type
  • Primary and secondary site areas
  • Farm or CAUV classification
  • Road frontage and shape
  • Special-use or commercial land
Improvement details
  • Building type and card number
  • Dimensions and area
  • Year built
  • Condition and grade
  • Garage, barn, paving, fence and additions
Print-page tip: The portal provides printable parcel views that place the sketch, owner, address, legal description, values, taxes, recent sales, land and improvements together. Save this version when preparing a correction or complaint.

Why appraised value and taxes change differently

Darke County explains that the Auditor establishes market value through a six-year reappraisal cycle and a third-year update. The final bill also reflects the 35% assessed value, taxing-district rates, state reduction factors, credits, levies and special assessments.

Read official property-tax guidance Open valuation and tax FAQs
Parcel map and legal-description help

Use Darke County property maps correctly

Micro steps for the official Map

Find the parcel number first Copy it from Advanced Search rather than relying on an uncertain mailing address.
Open the official Map Use the parcel, owner or address search available in the viewer.
Zoom to the property Verify roads, neighbouring parcels and the selected parcel number.
Compare map and parcel page Confirm the parcel number, address, acreage and owner display agree.
Save a reference image if needed Use it to explain the location to county staff—not as a survey.
Contact the Engineer or Map Office for legal-description work Prepare the parcel number, deed, township, range, section and survey information.
The online map helps with
  • Finding a rural tract
  • Viewing adjacent parcels
  • Checking road location
  • Confirming a parcel number
  • Explaining a location to county staff
The map does not prove
  • Exact boundary corners
  • Legal ownership
  • Fence placement
  • Buildable area
  • Whether an encroachment exists
Boundary warning: Do not build, fence, excavate or resolve a dispute from an online parcel line alone. Use the recorded deed, approved legal description, subdivision plat and a licensed survey when exact boundaries matter.

When the online map does not answer the question

Darke County’s map guidance says staff can help with requested map areas when users provide parcel numbers, addresses, legal descriptions or township-range-section references. For tax-map maintenance, deed descriptions, lot splits and annexation questions, contact the Engineer at 937-547-7375.

Open official property Map Call Map requests: 937-547-2519 Call Engineer: 937-547-7375
Market and appeal research

Find Darke County sales and comparable properties

Darke County provides three useful paths: Advanced Search for precise filters, Sales Report for price-range summaries and Sales List for weekly valid-sale records.

Use the Sales Report for a market overview

Select a relevant date range Use dates near the valuation date or recent purchase period.
Review the summary The report displays sale count, parcel count, average, median, minimum, maximum and price ranges.
Open matching parcels Move from a price range to the actual properties behind the numbers.
Export CSV when comparing several sales Preserve the date range and parcel list used.

Use Sales List for individual valid transfers

The weekly Sales List shows parcel, date, prior owner, new owner, address, acreage and amount for records classified as valid sales.

Choose meaningful comparable properties

Similar township or market area
Similar tax and school district
Similar property class
Similar acreage and homesite
Similar building size and age
Similar condition and improvements
Recent arm’s-length sale
No unusual buyer or seller pressure
Do not use every transfer as a comparable. Sheriff’s sales, bank sales, short sales, family transfers, gifts, partial interests and other pressured or non-market transactions may not be accepted as arm’s-length evidence.
Farm comparison tip: Compare tillable acreage, homesite area, soil and agricultural use, barns, grain or livestock improvements and CAUV status—not only total acres and sale price.
Open Sales Report Open weekly Sales Lists Use advanced sales filters
2026 tax payment and credit help

Check Darke County taxes and pay the correct parcel

Current published deadline August 14, 2026
Second-half 2025 real-estate tax bills

Confirm the parcel balance, any credit, delinquency and payment posting before the deadline.

HB 186 credit: The official portal says the property-tax credit is in effect. Some 2025 tax tables payable in 2026 display an “Inflation Cap Credit” line. Check the selected parcel rather than assuming every property receives the same credit.

How to read the tax table

Tax fields that can change the amount due
Tax line
What it tells you
Action
Charge / Effective Tax
Tax before and after applicable reduction-factor calculations.
Do not compare only the full tax rate.
Reduction
Statutory reduction-factor adjustment.
Review it before assuming tax changed at the same percentage as value.
Non-Business Credit
A residential/agricultural credit where applicable.
Check property class when the credit is absent.
Owner Occupancy Credit
The 2.5% reduction on a qualifying principal residence and homesite.
Use DTE 105C if missing and eligible.
Homestead
Reduction for an approved eligible homeowner.
Confirm application status with the Auditor.
Inflation Cap Credit
Parcel-specific HB 186 credit where applicable.
Compare first- and second-half values on the current tax year.
CAUV Recoupment
Charge after qualifying agricultural land is converted or removed.
Contact Real Estate before changing agricultural use.
Special Assessments
Separate ditch, utility, improvement or other charges.
Identify the assessment before challenging market value.
Net Paid / Net Due
Payments posted and the remaining balance.
Confirm posting with the Treasurer when recently paid.

Micro steps for the 2025 Tax Estimator

Find the appraised value Copy the 100% appraised total from the selected parcel.
Find the exact tax district The estimator contains many township, municipality and school-district combinations.
Select property type Choose Residential/Agricultural or Commercial/Industrial correctly.
Select applicable reductions Indicate owner occupancy, Homestead or disabled-veteran Homestead only when approved or genuinely expected.
Compute and save the assumptions Record the value, district, type and reductions used.
Compare with the live parcel bill The tool estimates tax year 2025 payable in 2026; it does not replace the Treasurer’s balance.

Micro steps for online payment

Search and open the correct parcel Verify parcel number, owner and address before starting payment.
Open the Tax section Select tax year 2025 and review Net Due, delinquency and special assessments.
Add the parcel to the Payment Cart The empty cart page instructs users to add parcels from the Tax section of the parcel page.
Review every parcel in the cart Buyers and rural owners may have more than one adjacent parcel.
Continue to the authorized processor Review the payment amount and any displayed processing fee before authorizing.
Save confirmation and recheck posting Keep the date, amount, parcel, method and confirmation number.

Use the Delinquency Report carefully

The public Delinquency Report can display parcel, taxpayer, amount, certified year and vacant status, with CSV export. A listed balance can change after payment, correction, bankruptcy or agreement, so verify the live parcel and call the Treasurer before relying on it for a purchase or legal decision.

Treasurer call script “I am calling about parcel [parcel number] at [address]. I need to confirm the current second-half balance, whether an HB 186 credit appears, whether any payment has posted, and the approved payment options before August 14, 2026.”
Open 2025 Tax Estimator Open Tax Payment Cart Open Delinquency Report Call Treasurer: 937-547-7365
Recorded land documents

Find deeds, mortgages, liens and easements

Use the Auditor parcel page to collect the owner, prior owner, sale date and parcel number. Use the Recorder for the actual recorded document.

Search the Recorder in the correct order

Copy parcel and transfer clues Save the current owner, previous owner, sale date, parcel number and abbreviated legal description.
Open the official AVA land-record search Use the link provided by the Darke County Recorder.
Search current and former names Try individuals, spouses, trusts, estates, companies and name variations.
Search both sides of the transaction Grantor generally transfers the interest; grantee generally receives it.
Narrow by document type and date Look for deed, mortgage, release, lien, easement, power of attorney or another instrument.
Compare legal-description clues Verify township, section, subdivision, lot or parcel references.
Request an official copy when required Ask whether the receiving court, lender or agency needs a certified copy.
Recorder

Hillary Holzapfel

937-547-7390

Office
504 South Broadway
Darke County Courthouse
Greenville, OH 45331
Hours and email

Monday–Friday, 8:00 a.m.–4:00 p.m.

hillaryh@co.darke.oh.us

Online coverage: Darke County states that land records in the official search begin in May 1996, with historical indexing expanded further back. Contact the Recorder when an older deed or mortgage does not appear.
Free fraud-alert option: The Recorder also offers Property Fraud Alert. Register the owner-name variations shown in recorded documents so the service can alert you when a new document is indexed under those names.
Title warning: An owner-name or Recorder search is not a complete title examination. Use qualified title or legal help for purchases, probate, ownership disputes, unreleased liens, easements or complex multi-parcel transactions.
Open official AVA land-record search Review Recorder office details
Board of Revision action plan

Challenge an incorrect Darke County property value

File a complaint when evidence supports a different market value. The Board cannot change a tax rate, CAUV formula, percentage tax increase or bill amount simply because the total feels high.

Review the record before filing

Parcel number and taxing district
Land acreage and classification
Building area, age and condition
Garages, barns and other improvements
Recent valid purchase
Comparable arm’s-length sales
Damage, demolition or major defects
Income and expenses for income-producing property

File DTE Form 1 correctly

Contact Real Estate before filing Darke County recommends a general discussion to reduce incomplete or invalid complaints.
Use the current DTE 1 Identify every parcel, current value, requested value and the factual reason for the request.
File between January 1 and March 31 Deliver the complaint to the Darke County Auditor at the Courthouse.
Attach the evidence with the complaint Include recent sale documents, appraisal, repair estimates, photographs, comparable sales or income statements.
Include the residential questionnaire when applicable The county asks for updated property information with residential complaints.
Use separate complaints when required Multiple parcels generally must be contiguous or one economic unit, in the same taxing district and under identical ownership.
Keep proof of timely filing An incomplete or flawed complaint may be dismissed.
No county filing fee: Darke County states that there is no fee or other charge to file a Board of Revision complaint with the County Auditor.

Evidence the Board says it can consider

Useful valuation evidence
Situation
Useful evidence
Weak approach to avoid
Recent purchase
Closing statement, purchase contract and sale-condition documents.
Submitting only a website estimate.
Incorrect physical facts
Measurements, plans, permits, demolition records and photos.
Saying “the record is wrong” without naming the field.
Damage or poor condition
Dated photographs and itemized professional repair estimates.
General maintenance complaints.
Comparable-sales case
Recent similar arm’s-length sales.
Selecting only the lowest nearby values.
Income-producing property
Income, expense and occupancy records.
Comparing only residential properties.
Outcome risk: The Board can increase, decrease or make no change to the value. The burden of proof normally rests with the person filing the complaint.

What happens after filing?

  1. The Board or its representative normally visits and inspects the parcel.
  2. Staff compare physical features with the Auditor record and submitted evidence.
  3. The Board may send a certified settlement offer for an increase, decrease or no change.
  4. The property owner can accept or request a hearing.
  5. If a hearing is scheduled, written notice is sent in advance.
  6. A final written value decision follows the hearing.
  7. A further appeal may be available through the Ohio Board of Tax Appeals or local Common Pleas Court.
BOR preparation script “I am reviewing parcel [parcel number] for tax year [year]. I believe the value is incorrect because [sale, record error, condition, appraisal or comparable evidence]. Can you confirm the current DTE 1, filing deadline, questionnaire and evidence-submission rules?”
Open BOR forms and rules Call Real Estate: 937-547-7308
Credits, exemptions and agricultural land

Check owner occupancy, Homestead and CAUV

Common Darke County property-relief programs
Program
Purpose
Key requirement
Form or action
Owner Occupancy Credit
2.5% reduction for a qualifying principal residence.
Owner and spouse may receive it on only one home; generally covers the dwelling and up to one acre.
DTE 105C.
Homestead Exemption
Tax reduction for qualifying senior, disabled, veteran or surviving-spouse homeowners.
Ownership, principal residence, category and current income rules may apply.
DTE 105A, DTE 105I or related forms.
CAUV
Values qualifying agricultural land according to current agricultural use.
Generally at least 10 acres, or $2,500 average annual gross agricultural income for a smaller tract.
DTE 109 and annual renewal.
Damaged Property
Requests valuation deduction after qualifying destruction or damage.
Document the date, cause and extent of damage.
DTE 26.

Owner Occupancy Credit

A qualifying homeowner must own and occupy the property as the principal residence on January 1 of the filing year. The public tax table may show a separate Owner Occupancy Credit line after approval.

Homestead Exemption

Identify the correct applicant category Senior, permanently and totally disabled, qualifying disabled veteran or eligible surviving spouse.
Confirm the current income threshold Do not rely on an old saved application or historical threshold.
Use the correct DTE form The official forms page includes applications, continuing forms, disability certificates and addenda.
Prepare identity, residence and eligibility evidence The Auditor may request appropriate proof.
Check the next tax bill Approved reductions should appear as a separate line in the property tax table.

CAUV eligibility and recoupment

Qualification routes
  • At least 10 acres devoted exclusively to agricultural use
  • Or a smaller tract with at least $2,500 average yearly gross agricultural income
  • Or qualifying federal conservation-program land
  • Qualifying agricultural use during the three prior calendar years
Responsibilities
  • Use DTE 109 for initial application
  • Complete the required annual renewal
  • Use DTE 102 during an applicable transfer
  • Report a change from agricultural use
  • Plan for possible three-year recoupment
CAUV conversion warning: Darke County states that land converted from agricultural use is subject to a recoupment charge equal to the tax savings on the converted land during the three preceding years.

Useful property forms

Darke County form finder
Form
Use
Preparation reminder
DTE 1
Real-property value complaint.
File January 1–March 31 with evidence.
DTE 100 / 100EX
Conveyance-fee or exemption statement.
Use the version matching the transaction.
DTE 101
Conveyance of Homestead property.
Use during an applicable ownership transfer.
DTE 102
Conveyance of CAUV property.
Review recoupment and continued use.
DTE 105A
Homestead application.
Check current eligibility and income requirements.
DTE 105C
Owner Occupancy Credit.
One qualifying principal residence.
DTE 109
Initial CAUV application.
Document acreage, use or agricultural income.
DTE 26
Destroyed or damaged property deduction.
Include dated evidence of damage.

After identifying the correct program and form, use the official Downloadable Forms page. Read the form instructions and call Real Estate before submitting an incomplete application.

Open official forms Read Homestead and CAUV guidance Call Real Estate: 937-547-7308
Deed transfer and parcel changes

Follow the Darke County conveyance order

The official county guidance gives a specific order for real-property transfers: Map Office review, Auditor conveyance processing and Recorder recording.

Prepare the deed and legal description Include correct grantor, grantee, prior-recording and tax-mailing information.
Take the deed to the Darke County Map Office The legal description and parcel configuration are reviewed before transfer.
Take the approved document to the Auditor Submit the correct DTE 100 or DTE 100EX and any Homestead or CAUV conveyance statement.
Pay the conveyance and transfer charges Darke County publishes $3 per $1,000 of consideration plus $0.50 per parcel.
Take the stamped deed to the Recorder Pay the current recording fee and complete legal recording.
Recheck the property portal later Confirm that owner and transfer information updates on every involved parcel.

Use the Conveyance Fee Calculator

Enter the parcel count and sale price. The calculator includes the parcel transfer fee, but it does not replace Map Office, Auditor or Recorder review.

Multi-parcel warning: Verify every parcel number before closing or paying taxes. A house, access strip, barn lot or adjoining acreage may be carried as a separate parcel.
Conveyance call script “I am preparing a deed transfer involving [number] parcels and a sale price of [amount]. The property includes [split, combination, Homestead, CAUV or exemption issue]. Can you confirm the required Map Office review, DTE forms and fees?”
Open Conveyance Fee Calculator Call conveyance help: 937-547-7307 Call Recorder: 937-547-7390
Contacts, hours and visit planning

Contact the correct Darke County property office

Darke County property office contacts
Office
Use it for
Contact
Location and hours
Auditor
Property search, values, calculations, forms and general Auditor questions.
937-547-7310
Real Estate: 937-547-7308
Fax: 937-547-2500
carolaginn@gmail.com
504 S. Broadway, Courthouse 1st Floor, Greenville, OH 45331
Monday–Friday, 8:00 a.m.–4:00 p.m.
Treasurer
Tax bills, payment, posting, delinquency, balance and receipt questions.
937-547-7365
Fax: 937-547-7342
darkecountytreas@gmail.com
504 S. Broadway, Courthouse 1st Floor, Greenville, OH 45331
Monday–Friday, 8:00 a.m.–4:00 p.m.
Recorder
Deeds, mortgages, liens, easements, releases and recorded documents.
937-547-7390
hillaryh@co.darke.oh.us
504 S. Broadway, Courthouse, Greenville, OH 45331
Monday–Friday, 8:00 a.m.–4:00 p.m.
Engineer
Tax maps, deed descriptions, land transfers, lot splits and annexations.
937-547-7375
engineerdarke@gmail.com
504 S. Broadway, Suite 9, Greenville, OH 45331
Monday–Friday, 8:00 a.m.–4:00 p.m.
Map requests
Parcel-area maps and reference-image requests.
937-547-2519
Prepare parcel numbers, addresses, legal descriptions or township-range-section references.

Bring or include these details

Full parcel number
Property address or road
Owner name
Relevant tax year
Deed or recording reference
Form or application name
Screenshot or printout
One-sentence description of the problem
Universal property call script “I am contacting you about parcel [parcel number] at [address]. I need help with [search, value, tax payment, deed, map, exemption or transfer]. The public record currently shows [brief fact]. Which official tool, form or office should I use next?”
County-border check

Could the parcel be in a neighbouring county?

Mailing addresses, school districts and roads near county boundaries can cause failed searches. Confirm the actual county when a property near eastern Darke County does not appear.

Miami County

Useful for parcels near Bradford, Covington-area routes or Darke County’s eastern boundary.

Open Miami County property-search guide
Montgomery County

Useful for parcels southeast of Darke County or properties with Dayton-area mailing or market connections.

Open Montgomery County property-search guide
Important record limits

What the online property portal cannot prove

Useful for
  • Parcel identification
  • Owner and address research
  • Value, building and tax review
  • Sales and map comparison
  • Finding the correct office or form
Get additional verification for
  • Legal title
  • Exact property boundaries
  • Unreleased liens
  • Construction or zoning approval
  • Purchase, lending or court decisions
Responsible-use warning: Do not identify, contact or publish conclusions about a person from an owner-name match alone. Confirm the parcel and use public property information lawfully.
Ten practical answers

Darke County property search FAQs

How do I search Darke County property records?

Use the official Darke County Advanced Search. Search by owner name in Last First format, parcel number, or address. Start with fewer fields, open the matching parcel and verify its parcel number and location.

Can I search Darke County property by owner name?

Yes. Enter the surname first. For a trust, estate, farm or company, begin with one distinctive word and add more only when the results are too broad.

Why does my Darke County address search return no result?

Try only the house number and street name. Remove the direction, street type, punctuation and unit information. For a rural property, use the owner name, parcel number or official map.

What is the difference between appraised and assessed value in Darke County?

Appraised value is the Auditor’s estimate of market value. Ohio assessed or taxable value is generally 35 percent of appraised value and is used with the parcel’s tax rate, reductions, credits and special assessments.

When is the second-half Darke County property-tax payment due in 2026?

The official Darke County property portal lists August 14, 2026 as the due date for second-half 2025 real-estate tax bills.

How do I pay Darke County property taxes online?

Search and open the parcel, go to its Tax section, add the parcel to the Tax Payment Cart, review the parcel and amount, continue to the authorized payment processor and save the confirmation.

Are Darke County online parcel-map lines legal boundaries?

No. The map is useful for parcel location and research but does not replace a deed, approved legal description, subdivision plat or boundary survey.

How do I find a Darke County deed or mortgage?

Use the Darke County Recorder’s official AVA land-record search. The county states that searchable land records begin in May 1996, with expanded historical indexing also available.

How do I challenge a Darke County property value?

Contact the Real Estate Department, review the parcel facts, gather evidence and file DTE Form 1 between January 1 and March 31. There is no county filing fee, but an incomplete complaint may be dismissed.

Who should I contact about a Darke County tax-payment problem?

Contact the Darke County Treasurer at 937-547-7365 for payment, balance, delinquency and receipt questions. Contact the Auditor Real Estate Department at 937-547-7308 for value, parcel and tax-calculation questions.

Information checked July 30, 2026: Property-search fields, map, sales tools, 2025 tax estimator, August 14 deadline, HB 186 notice, payment-cart process, forms, Board of Revision procedures, CAUV rules, conveyance fees, office contacts and Recorder coverage were checked against Darke County’s official property portal and county office pages.
Independent guide: CountyAuditors.org is not the Darke County Auditor, Treasurer, Recorder, Engineer, Map Office or Board of Revision. Confirm live balances, filing deadlines, legal descriptions, recorded documents, boundaries and payment instructions with the responsible public office.
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.

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.

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.

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.

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).

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.

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.

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.

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.

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.

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.

Leave a Comment