Search Union County Parcel, Tax and Deed Records Without Opening the Wrong Office
Union County property search is easier when you start with the correct record type. Beacon is for parcel records, values, tax history, sketches, sales and tax estimates; GIS is for parcel maps; Recorder is for deeds; Treasurer is for payments.
This guide gives a practical lookup path, official links, local insider tips, due-date checks, appeal clues, and no-result fixes for homeowners, buyers, agents, investors and rural landowners.
Fast answer: open Union County’s official Property Search Tools, then use Beacon Property Search for owner, address, parcel ID, value, tax history, building sketches, sales, comparables and tax-estimator tools.
2026 tax check: Union County’s Treasurer lists first-half taxes due February 18, 2026 and second-half taxes due July 15, 2026. If you need payment status, penalties, lost bill help or delinquent payment details, use the Treasurer, not the Auditor.
Use the Correct Union County Property Tool
Do not treat every property question as an Auditor question. The fastest answer depends on whether you need parcel data, tax payment, a recorded deed, survey documents, or a value appeal.
Need |
Use |
Click / do this |
Official link |
|---|---|---|---|
Owner, address, parcel, value, sketch, sales, tax history |
Beacon Property Search |
Search → select Parcel ID → open Report, Tax History, Map, Sales or Comparables. |
|
Boundary view, aerials, map layers, neighboring parcels |
GIS Mapping |
Use GIS for visual research, not final legal boundary proof. |
|
Deed, mortgage, recorded legal document |
Recorder Official Records |
Search recorded documents if ownership or deed history matters. |
|
Tax payment, due date, penalty, missing bill, delinquency |
Union County Treasurer |
Use Payment Information or Pay Taxes Online. |
|
Survey records, subdivision plats, tax maps |
Engineer / Property & Survey |
Search survey documents and subdivision plats before relying on map lines. |
|
Challenge market value |
Board of Revision |
Gather comparable sales and property evidence before filing. |
Micro Step-by-Step: Search a Union County Parcel in Beacon
Start from the official county page
Go to Property Search Tools, then choose Beacon Property Search. This avoids outdated or third-party lookup pages.
Type the simplest search first
Use parcel ID if you have it. If not, use house number + street name, or owner last name only. Avoid punctuation, suffixes, apartment notes and extra words at first.
Select the Parcel ID
Beacon Help says results appear after search. Click the Parcel ID to open the detailed property record.
Open Report first
The Report screen is where you confirm owner, mailing address, property class, values, building details, sketches and printable property card information.
Then check Tax History
Use Tax History for tax-year/liability review. For actual payment, penalty or delinquency questions, move to the Treasurer.
Use Sales or Comparables for value questions
Before calling about a high value or filing BOR, look at nearby sales, appraised values, property condition, building data and school district/levy context.
What to Type in Beacon If You Search by Parcel, Address or Owner
Parcel ID
- Best option for exact matching.
- Copy from a tax bill, deed, GIS result or prior parcel card.
- Use this number when calling Auditor, Treasurer or Recorder.
- If land was split or combined, old parcel numbers may not work.
Address
- Start with house number + street name only.
- Remove Road, Street, Drive, Court and punctuation first.
- For new subdivisions near Marysville or Dublin growth areas, try GIS if address search fails.
- Try fewer words before assuming the property is missing.
Owner name
- Use last name only before full name.
- For LLC/trust ownership, search one unique business word.
- If the sale was recent, check Recorder records if Beacon still shows the old owner.
- For estate ownership, try surname only and then parcel/address search.
Union County Insider Tips That Save Time
These are the practical checks that help real users, not just official links.
Old owner still showing?
Do not assume Beacon is wrong. A recorded deed and Auditor parcel display may not update at the same moment. Check Recorder Official Records first, then call the Auditor if the mismatch remains.
Tax bill looks higher than expected?
Check school district, levy changes, owner-occupied credit, Homestead status, CAUV status, special assessments and whether you are comparing tax year vs payable year correctly.
Buying land or a rural parcel?
GIS is helpful, but survey records, plats, legal descriptions and CAUV status matter more for boundary, acreage and use questions.
Appealing value?
Do not start with “my taxes are high.” Start with market evidence: comparable sales, property condition, incorrect square footage, wrong building data, or a recent sale.
New-build subdivision?
Use address, parcel ID and subdivision plat tools together. New streets and lots may be easier to verify by plat or GIS before they behave cleanly in name/address search.
Payment issue?
Call Treasurer at 937-645-3035. Call Auditor at 937-645-3003 for valuation, Homestead, rollbacks, CAUV, GIS mapping or special-assessment questions.
What the Union County Beacon Parcel Record Helps You Check
Record item |
Why it matters |
Best next step |
|---|---|---|
Parcel ID |
Cleanest identifier for Auditor, Treasurer, GIS, Recorder and BOR questions. |
Copy it before calling any office. |
Owner / mailing address |
Shows taxable owner and where notices may be mailed. |
If ownership looks old, search the Recorder deed records. |
Appraised value |
Value is the base for assessed value and tax calculation. |
Use sales and building data before BOR. |
Building sketch |
Can reveal square footage, additions or structure-data issues. |
Call Auditor if the property card has incorrect features. |
Tax History |
Helps view tax liability history after a parcel is selected. |
Use Treasurer for payment status or delinquency help. |
Sales and Comparables |
Useful for buyers, agents, lenders and valuation evidence. |
Export or save comparable evidence before contacting BOR. |
Union County 2026 Property Tax Dates and Payment Help
First half due
February 18, 2026 is the last day to pay first-half taxes without penalty.
First half penalties
5% penalty starts February 19, 2026. 10% penalty starts February 28, 2026.
Second half due
July 15, 2026 is the last day to pay second-half taxes without penalty.
Treasurer help
Call 937-645-3035 or email treasurer@unioncountyohio.gov for payment questions.
Union County GIS: Use It for Maps, Not Legal Boundary Proof
Use GIS for
Parcel boundaries, aerial photography, political boundaries, land context and neighboring-parcel research.
Use survey tools for
Survey records, subdivision plats, lot splits, legal-description research and land-development questions.
Do not use GIS for
Fence disputes, final lot-line proof, easement opinions, title opinions or replacing a licensed surveyor.
Deeds, Survey Records and Subdivision Plats
Need |
Use |
How to search |
Official link |
|---|---|---|---|
Deed, mortgage or recorded legal document |
Recorder Official Records |
Search recorded documents when ownership, deed history or mortgage records matter. |
|
Survey document |
Engineer Survey Record |
Use survey record tools for boundary and survey history questions. |
|
Subdivision plat |
Subdivision Plat Search |
Use plat records for subdivision lots, lot lines and development history. |
|
Older tax maps |
Plat / Tax Map collections |
Useful for historical map context and land research. |
Transfers, Conveyance Fee and Parcel-Split Planning
Conveyance fee
Union County lists the conveyance fee as $4 per thousand. Check Auditor/Engineer/Recorder requirements before submitting transfer documents.
Auditor forms
Use official Auditor forms for conveyance-related, CAUV, owner-occupancy, Homestead and real-estate program documents.
Split/plat context
For land splits and new subdivisions, use Engineer survey/plat resources and Recorder documents, not just the Beacon display.
Union County Board of Revision: Value Appeal Help
Start with evidence
Use Beacon sales, comparables, photos, property-condition evidence, building sketch errors and recent appraisals before filing.
BOR can change value
The Board of Revision may reduce, increase or make no change to a property value after review.
Call before filing
The BOR page says the Auditor’s Office is available to discuss property owner concerns at 937-645-3003.
Homestead, Owner-Occupancy Rollback and CAUV
Owner Occupancy / 2½% rollback
Use the Homestead and Property Tax Rollbacks page for owner-occupancy credit information and forms. Call the Auditor for program questions.
Open rollback pageHomestead
Senior citizens and permanently disabled owners may qualify, but income/means-test rules can apply. Check forms before assuming a credit is active.
Open Homestead pageCAUV
Qualified agricultural properties may be valued by production rates instead of market value. Union County lists either 10+ acres or minimum income requirements, a $25 application fee, and yearly renewal.
Open CAUV pageOfficial Valuation Video Resource
Union County has an official “Your Home, Your Value Video” page explaining the county home valuation process. A verified YouTube embed with safe upload-date and thumbnail metadata was not found, so this article links to the county’s official video page and does not add risky VideoObject schema.
If Union County Property Search Shows No Result
Problem |
Likely reason |
Fix |
|---|---|---|
Owner name fails |
LLC, trust, estate, spelling, middle initial or recent transfer. |
Use last name only, one business word, address or parcel ID. |
Address fails |
Street suffix, new development, rural address, punctuation or mailing/address mismatch. |
Use house number + main street name, then try GIS or subdivision plat search. |
Old owner appears |
Recorder and Auditor records may update on different timelines. |
Search Recorder records for the deed, then call Auditor if the parcel record still looks wrong. |
Boundary looks wrong |
GIS is visual reference, not legal survey proof. |
Use survey records, plats, legal descriptions or a licensed surveyor. |
Tax amount is confusing |
Tax year/payable year, school district, credits, levies or special assessments may differ. |
Check Beacon Tax History, Treasurer payment page and “Where to Get Answers.” |
Union County Auditor Office Google Map
Use this map for in-person help at 233 West Sixth Street, 2nd Floor, Marysville, Ohio. Bring your parcel ID, address, tax bill, deed reference, screenshots and any value evidence.
Auditor visit
Use for parcel, value, appraisal, Homestead, rollback, CAUV, GIS and special-assessment questions.
Treasurer visit
Use for payment, due dates, lost tax bills, delinquent taxes, receipts and tax bill questions.
Recorder visit
Use for deed, mortgage, recorded-document and ownership-chain questions.
Official Union County Links
Union County Auditor Property Search FAQ
What is the official Union County property search tool?
Use Union County’s official Property Search Tools page and open Beacon Property Search. Beacon is the main tool for owner, address, parcel, appraisal, tax history, building sketch, sales and comparable information.
How do I search Union County property by owner name?
Open Beacon and try the owner’s last name first. For LLC, trust, estate or company ownership, use one unique business word or search by parcel/address instead.
Can I search by parcel number?
Yes. Parcel ID is usually the most accurate way to search. Use it from a tax bill, deed, GIS result or prior property card.
Where do I find Union County tax history?
Open a parcel in Beacon and review Tax History. For payment status, due dates, penalties, lost bills or delinquency questions, contact the Treasurer.
What are Union County 2026 property tax due dates?
The Treasurer lists first-half taxes due February 18, 2026 and second-half taxes due July 15, 2026, with 5% and 10% penalty dates after each deadline.
What is the Union County Auditor phone number?
The Union County Auditor phone number is 937-645-3003. Use it for valuation, parcel, Homestead, rollback, CAUV, special-assessment and Auditor-side property questions.
What is the Union County Treasurer phone number?
The Union County Treasurer phone number is 937-645-3035. Use it for property tax payment, due-date, missing bill and delinquency questions.
Where do I search Union County deeds?
Use Union County Recorder Official Records for deeds, mortgages and recorded legal documents. If ownership recently changed, check Recorder records as well as Beacon.
Is Union County GIS the same as a survey?
No. GIS is useful for parcel map research, aerial views and boundaries, but it does not replace a recorded survey, plat, legal description or licensed surveyor.
How do I challenge my Union County property value?
Use Beacon to review the property report, sales and comparable properties first. Then check the Union County Board of Revision page and contact the Auditor before filing.
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.
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.
Annual Tax Bill Estimator
OHIOApplies Ohio's 35% assessment ratio plus your county's effective millage tier — the actual math your auditor uses.
Homestead Reduction Calculator
DTE 105A2026 Ohio Homestead: $29,000 general or $58,000 enhanced (100% disabled vet, KIA spouse). OAGI under $41,000 required for non-veteran applicants.
Owner-Occupancy & Non-Business Credits
DTE 105CEvery 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.
Conveyance Fee Calculator
ORC 322When 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.
CAUV Agricultural Savings
DTE 109Ohio's Current Agricultural Use Value cuts taxable value dramatically for farmland (10+ acres, or smaller with $2,500+ annual gross income).
Mill Rate Converter
Ohio tax rates appear three ways on auditor sites: mills, percent, or dollars per $1,000. Convert between them instantly.
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.
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.
BOR Appeal Savings
DTE 1A successful Board of Revision complaint typically cuts your value 10–20%. Filing is free and stays in effect until the next reappraisal.
BOR Deadline Countdown
MAR 31Ohio'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.
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:
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.