Union County Auditor, OH: Property Search, Records (2026)

Union County Auditor Property Search: Owner, Address and Parcel Number

The county’s primary public property lookup is Beacon Property Search. It brings together parcel records, appraisal details, sales information, comparable sales tools and property reports.

For most visitors, the fastest approach is to find the parcel first, then use its record to investigate valuation, building details or property taxes.

How to search Union County property records

1. Open the county’s property search tools. Visit the official Property Search Tools page.
2. Select Beacon Property Search. This is the county-linked application for property, appraisal, parcel and comparable sales research.
3. Choose your search information. Use the parcel number when known. Otherwise, enter an owner name or property address using the options shown in Beacon.
4. Review matching properties. Check the physical address and parcel identifier. A name may return several properties, particularly for trusts, companies or common surnames.
5. Open the correct property. Review its appraisal, land, improvements, sales and tax-related information using the available sections and reports.
6. Save the parcel number. Keep it with the tax year and property address. You may need it for the Treasurer, GIS tools or later inquiries.

Which search method should you use?

Search by owner versus current legal ownership

A parcel search is useful for identifying the owner shown in the Auditor’s data, but a recently transferred property may require additional verification. If ownership matters for a purchase, estate, legal dispute or title examination, check the recorded deed with the County Recorder.

What Information Appears in Union County Property Records?

A Union County parcel record may contain much more than an owner name. Different tabs or reports can help answer questions about the land, buildings, values and taxes.

According to the county’s property search page, tax year 2025 liability payable in 2026 can be reviewed by locating the parcel and scrolling to Tax History. Always match the tax year to the payment year: Ohio property taxes are generally collected in arrears.

What if a property record has incorrect information?

Write down the parcel number, the field that seems incorrect and the correct information. For example, a building record may show an improvement that no longer exists or an incorrect characteristic. Gather photographs, permits or supporting documents and contact the Auditor rather than assuming that the data will correct itself.

A difference between a property’s purchase price and appraised value does not automatically mean either record is wrong. The assessment year, sale circumstances and relevant valuation rules all matter.

Union County GIS Maps, Parcel Boundaries and Aerial Photos

GIS mapping helps you find a property geographically. It can be particularly useful for vacant land, rural parcels, adjoining lots and addresses that are difficult to locate in the property search.

The county provides GIS maps, a parcel viewer, subdivision plat research and geographic data resources through its official property tools.

How to use the Union County parcel map

1. Open the GIS resource. Start from the county’s Property Search Tools page and select GIS Map.
2. Find the search box. Use the map’s available owner, address or parcel search option.
3. Begin with a short search. The county recommends starting with limited information, such as a surname or house number, and narrowing the results afterward.
4. Select the matching parcel. The map should move to the selected property. Check nearby roads and parcel information to make sure it is the correct location.
5. Open appraisal information. In the county’s GIS guidance, the selected parcel provides an Appraisal Info link for additional property details.
6. Review available map layers. Explore aerial photography, addresses or other layers shown in the mapping tool.

The county’s Auditor GIS FAQ also explains how to compare aerial photography from different years using layers and transparency controls.

Union County Ohio Property Taxes: Bills, Tax History and Payments

The Auditor and Treasurer handle different parts of the property tax process. The Auditor maintains valuation and tax-related assessment information. The Union County Treasurer handles tax collection, payments and delinquent balances.

How to find your tax information

1. Locate the property. Open Beacon through the official county page.
2. Open Tax History. Review the available tax years and amounts. Check whether the record refers to the tax year or the year payment is due.
3. Confirm your current balance. For amounts due and payment status, use the Treasurer’s official payment page.
4. Review payment details. Check the parcel, balance, payment period and convenience fee before submitting.
5. Save confirmation. Keep your transaction reference and allow for processing before checking whether the account has updated.

How is an Ohio property tax bill calculated?

The general process begins with the Auditor’s market valuation. Ohio generally assesses real estate at 35% of market value, then applies the applicable tax district rates, legally required reductions, credits and any special assessments.

For illustration, a property with a market value of $250,000 has a general assessed value of $87,500 (35% of $250,000). This is not the amount of tax owed. The actual bill depends on effective rates, levies, credits, exemptions, adjustments and assessments.

A school district, township or municipality can affect the rate applicable to a parcel. Comparing two homes with similar values but different tax districts may therefore give misleading results.

Property tax payment questions

Property Appraisal, Revaluation and Comparable Sales

Union County’s Auditor establishes property values for taxation. Under Ohio’s general valuation cycle, real property undergoes a full reappraisal every six years, with a valuation update at the three-year midpoint.

The market-value figure in Beacon should be read alongside its tax year. Property conditions, sale dates and changes in the local market may influence valuation.

How to review whether your property value makes sense

1. Find your parcel. Record the total market value, land value and available improvement information.
2. Check physical characteristics. Review building size, age, additions, condition and land characteristics for obvious discrepancies.
3. Use comparable sales. Beacon provides comparable sales features. Focus on properties reasonably similar in location, size, age, condition and use.
4. Account for differences. A renovated home, larger lot or different location may sell for a different amount even when nearby.
5. Organize your evidence. If you believe the assessment is materially inaccurate, record the value you think is correct and why.

A recent sale can be important evidence, but not every transaction is a reliable measure of open-market value. Sales between related parties or unusual transactions require careful interpretation.

Union County Board of Revision: How to Challenge Property Value

If you believe the Auditor has assigned an incorrect taxable value, the Union County Board of Revision provides a formal complaint procedure. This process examines property valuation, not general dissatisfaction with the amount of a tax bill.

Board of Revision filing deadline

Under the county’s published instructions, a valuation complaint for the current tax year generally must be received after January 1 and on or before March 31 of the following calendar year.

For a complaint concerning tax year 2026, that ordinarily means a filing period in early 2027 ending March 31, 2027. Confirm the applicable filing instructions and any legislative changes with the Board before submitting.

How to prepare and file a valuation complaint

1. Confirm the value and tax year. Use Beacon to locate the parcel, verify the current valuation and identify the year being challenged.
2. Choose a supported value. Determine the amount you believe accurately reflects the property.
3. Collect evidence. Useful documents may include a professional appraisal, relevant comparable sales, purchase records, photographs or repair estimates.
4. Download DTE Form 1. Find the Board of Revision complaint and procedure documents on the county’s official Auditor FAQ.
5. Complete the required information. Include the correct parcel, owner, valuation year and requested value. Follow the county’s current signing and notarization instructions.
6. Submit the complaint. The county describes email, fax and mail filing options for notarized applications with supporting materials. Ensure it is received before the deadline.
7. Prepare for a hearing. Organize your evidence and review the Board’s hearing rules if your complaint is scheduled.

What happens after the Board makes a decision?

The county explains that decisions are subject to a period for appeal before record adjustments are processed. A successful reduction may lead to an adjustment, refund or credit depending on the circumstances. Processing is not immediate, and the Board may require additional time.

Union County Homestead Exemption and Owner-Occupancy Tax Credit

Ohio offers several forms of residential property tax relief. Union County’s Auditor administers applications and maintains relevant exemption and rollback records.

Homestead Exemption

The Homestead Exemption reduces the taxable value of an eligible primary residence for qualifying homeowners. Age, disability, residency, ownership and income requirements can apply. Some protected eligibility categories, including qualifying disabled veterans, have distinct rules.

For the standard age-based route, homeowners generally must meet Ohio’s applicable age and income conditions. The applicable income limits and exemption amounts can change by tax year, so use the current application instructions rather than assuming an older published threshold still applies.

How to apply for the Homestead Exemption

1. Review eligibility. Read the county’s Homestead and Property Tax Rollbacks page.
2. Choose the correct form. DTE 105A is the standard application for qualifying seniors, disabled homeowners and certain surviving spouses.
3. Gather supporting information. Prepare the property address, parcel number, ownership details, primary-residence information and any required income or disability documentation.
4. Complete the application. Use the instructions accompanying the official form. Additional documentation may be needed for your eligibility category.
5. Submit it to the Auditor. Confirm the current filing deadline and acceptable submission method with the office.
6. Check the resulting tax record. After approval and processing, review the relevant exemption or credit information for the correct tax year.

Which tax relief form applies?

Download the corresponding forms from the Union County Auditor Forms page.

What is the 2.5% owner-occupancy credit?

The commonly described 2.5% rollback is a property tax credit for qualifying owner-occupied residential property. It is not a 2.5% discount on the property’s market value and does not apply equally to every tax levy.

The Auditor states that an owner may receive this credit on only one eligible residence and that an application is required. Rental properties generally do not qualify for the owner-occupancy reduction.

Union County CAUV: Agricultural Property Tax Valuation

For agricultural property owners, the Current Agricultural Use Valuation program (CAUV) can be an important part of land taxation. Instead of valuing qualifying agricultural land according to potential development value, the program uses agricultural-use valuation rules.

Who may qualify for CAUV?

Ohio’s CAUV program applies to land meeting the statutory agricultural-use requirements. The details depend on factors such as land use, acreage, qualifying agricultural production and, where applicable, agricultural income.

Eligibility is not automatic simply because land is vacant, rural or large. The actual use of the property matters.

CAUV application process

1. Review the current requirements. Open the Auditor’s CAUV guidance.
2. Check the parcel and acreage. Identify the property and document the agricultural use of the land.
3. Obtain DTE Form 109. This is the county-listed initial application for Current Agricultural Use Valuation.
4. Prepare the supporting information. Include the relevant acreage, land-use information and any required production or income documentation.
5. File within the applicable period. The published county instructions generally describe initial filing after the first Monday in January and before the first Monday in March, subject to specified exceptions during revaluation or update years.
6. Respond to renewals. The county directs owners seeking a renewal application to CAUV@unioncountyohio.gov.

A separate application is generally required for each qualifying farm unit, and the program has ownership and land-use rules. Read the full current instructions before filing.

Additional agricultural programs

Union County’s Auditor Forms page also includes resources for agricultural districts, the Ohio Forest Tax Law program and agricultural security areas. These are separate programs with different requirements; CAUV enrollment does not automatically establish eligibility for them.

Union County Deeds, Property Transfers and Conveyance Fees

The Auditor’s parcel records and the Recorder’s official documents answer different questions. If you need the deed, mortgage or recorded transfer document itself, use the County Recorder’s official records resources.

How to research a deed

1. Find the property in Beacon. Record its parcel number, owner and any available sale information.
2. Open county property information. Visit Union County Property Information and choose Official Record.
3. Search the Recorder records. Use the available party-name, document or recording reference fields.
4. Inspect the matching instrument. Compare names, legal description, recording date and other identifiers.
5. Request copies when necessary. Contact the Recorder if an image, older document or certified copy is unavailable online.

Real estate conveyance fees

The official Union County Auditor Forms page lists a conveyance fee of $4 per $1,000 of consideration and a $0.50 parcel fee, with exceptions for specified parcel identifiers.

For a straightforward illustration, a $200,000 taxable conveyance would produce a $800 conveyance fee before applicable parcel fees and any other charges. This example assumes the whole stated amount is subject to the standard fee and does not determine whether a particular transfer is exempt.

Common transfer-related forms include:

• DTE 100: Real Property Conveyance Fee Statement of Value and Receipt.
• DTE 100EX: Statement of Reason for Exemption from Real Property Conveyance Fee.
• DTE 101: Statement of Conveyance of Homestead Property.
• DTE 102: Statement of Conveyance of CAUV Property.

Union County also publishes conveyance standards governing the submission of real estate transfers. For deed and conveyance processing questions, the county lists 937-645-3077. Review the official standards and forms before preparing a transfer.

Union County Auditor Forms and Applications

The Auditor’s forms directory is organized by property tax programs, conveyances, agricultural classifications and other functions. Choosing the right form before visiting the office can prevent unnecessary trips.

View all Union County Auditor forms and downloadable PDFs.

Some PDF documents are fillable, while others are intended for printing and signing. Check the form revision date, filing instructions and required attachments before submitting.

Destroyed or damaged property

If a building has been damaged by fire, severe weather or another qualifying event, DTE 26 may be relevant to a property value deduction request. The county provides separate documentation for certain damaged manufactured homes.

Take clear photographs, identify the parcel and record the damage date. Contact the Auditor promptly to confirm eligibility and the filing deadline relevant to the damage year.

Union County Dog Licenses: Registration, Renewal and Replacement

The Union County Auditor also administers dog licensing. A current tag helps animal-control personnel identify an owner if a dog is found away from home.

According to the county’s published guidance, the regular renewal season runs from December 1 through January 31. Dogs newly acquired must be licensed within the applicable legal period, and puppies must be licensed by three months of age.

How to purchase or renew a dog license

1. Open the county’s dog licensing information. Visit Licensing Your Dog.
2. Choose online or in-person registration. The county links to the Union County online dog license service. In-person options are also identified on the county page.
3. Provide owner and dog details. Have the required name, address and dog information available.
4. Choose the appropriate license. Review the options and current charges before payment.
5. Complete registration. Save the receipt and follow the instructions concerning your dog tag.

The county currently describes an $18 late penalty for licenses purchased after the January renewal deadline, subject to the applicable rules. Confirm the current base fee and total before checkout.

The official Dog Registration FAQ states that replacing a lost tag costs $5 and transferring an existing license to another owner costs $5. Licenses cannot be transferred between different dogs.

Union County Auditor Office: Address, Phone, Hours and Directions

Which office should you contact?

Before visiting, have your parcel number, property address and a clear description of your question ready. For forms or filing matters, ask whether an appointment or particular documentation is needed. Holiday hours may differ from the regular schedule.

Frequently Asked Questions About the Union County Auditor

Get the Right Union County Property Information

The easiest way to start is to search your parcel in Beacon and keep its complete identifier. From that record, you can review values, taxes, building information and sales, then decide whether you need the Auditor, Treasurer, Recorder or Board of Revision.

If you are applying for a tax credit, researching agricultural land or challenging a valuation, prepare the supporting documents before submitting anything. A little preparation can save a return trip or an avoidable filing delay.

For property research beyond Union County, our guides to the Franklin County Auditor and Delaware County Auditor explain their separate public search systems and procedures.

This independent guide is not operated by the Union County government. Official county systems control current records, filing requirements, payment amounts and service availability. Information reviewed October 2026.