Union County
Property Tax Guide
Effective rate 0.58% — median annual bill $579. Pay online, search records, and contact the official Union County assessor.
Data Source
County Tax Assessor Database
Verification
PropertyTax.guide Editorial Team on 2026-05-08
Data Quality
Independently reviewed and fact-checked
Official Payment & Records
Use your official county or municipal tax office for payments, records, and assessments.
Before you pay or search records: an official portal link is not yet verified in our current database. Use the office section below and confirm the correct website or phone number before paying.
Union County Property Tax Rate
The current effective property tax rate in Union County is approximately 0.58%. This composite rate reflects levies from multiple taxing authorities: the county general fund, local school districts, city governments, and any special assessment districts.
Estimated Annual Tax by Home Value
| Home Value | Est. Annual Tax | Monthly |
|---|---|---|
| $150,000 | $869 | $72/mo |
| $250,000 | $1,448 | $121/mo |
| $350,000 | $2,027 | $169/mo |
| $500,000 | $2,895 | $241/mo |
| $750,000 | $4,343 | $362/mo |
Estimates based on 0.58% effective rate. Actual bills depend on your specific assessed value, exemptions, and local millage.
How to Pay Union County Property Tax Online
Use this payment workflow to prepare your bill lookup, verify the official payment path, and avoid submitting on the wrong website.
What you need before you start
- Parcel or account number: use the number shown on your bill if possible.
- Owner name or property address: keep one backup search method ready if the parcel lookup fails.
- Installment and balance due: confirm whether you are paying the current quarter or a delinquent amount before submitting.
County-specific facts currently available
Installment dates
January 15
Penalty / interest
3.00% first period, 7.00% after
How to pay online
A verified online payment portal is not available in our current database. Use the office section below to confirm the correct portal before paying.
Other payment methods
Mail, in-person, and phone options may exist, but they are not always handled by the same office or processor. Verify the correct address, posting rules, and accepted methods before sending money or visiting in person.
What happens after payment
Save the confirmation number, receipt, and timestamp. If the account does not update quickly, compare the receipt to your bill details before contacting the office.
If your payment fails
Re-check the parcel number, owner name, installment selected, and billing ZIP. If the issue continues, stop and call the office before trying again so you do not create duplicate charges.
Reality warning: Fees and payment methods can vary by processor and municipality. Confirm on the official payment page before submitting.
Search Union County Property Tax Records
Use this records workflow to verify assessed value, tax status, and ownership details before paying, appealing, or requesting an exemption.
Choose a search method
Start with parcel number if you have it. If not, try property address or owner name.
Enter parcel, owner, or address details
Use the exact street number, spelling, and parcel format shown on your bill or deed.
Confirm assessed value and tax status
Check the assessed value, current tax year, unpaid balance, and any delinquent flags before taking action.
Download, print, or save the result
Keep a copy of the record before paying, filing an appeal, or contacting the office.
What if no result is found?
- Spelling mismatch between the bill and the public record.
- Old owner name still attached to the parcel.
- Parcel split, merge, or recent reassignment.
- Municipality-specific record system that is separate from the county workflow.
Top Ways to Lower Your Union County Tax Bill
🏠 File the Homestead Exemption
If you own and occupy your home as your primary residence, you likely qualify. The homestead exemption removes a portion of assessed value from taxation — often saving $200–$1,000/yr.
👴 Senior & Disability Freeze
South Carolina offers senior citizen freezes and disability exemptions that cap or reduce your assessed value. Apply once, renew annually. Missing the deadline means losing a full year of savings.
🎖️ Veterans Exemption
Honorably discharged veterans and surviving spouses may qualify for significant reductions. Rates vary by disability rating and state law — apply through the Union County Assessor.
📊 Appeal Your Assessment
Compare your assessed value to recent sales of comparable homes. If yours is too high, file a formal protest. A successful appeal can permanently lower your annual bill.
Appealing Your Union County Assessment
If your property is over-assessed, you have a legal right to protest. Most South Carolina counties allow 30–90 days from the assessment notice to file. Present comparable sales data and factual errors in your property record for the strongest case.
Review Notice
Check square footage, bedroom count, and property class for errors.
Gather Comps
Find 3–5 similar homes that recently sold for less than your assessed value.
File Protest
Submit evidence to the county board before the annual appeal deadline.
Official Office Contact
Union County Building Department
County office record migrated from the permit/counties database and enriched with tax-oriented URLs where available.
Office Map
Map pin based on verified office address.
Need payment help? Call before paying if your parcel search fails. Always verify payment location and mailing address before visiting.
Tax Exemptions & Relief Programs — Union County
Many property owners qualify for tax exemptions that can significantly reduce their annual bill. Common programs include homestead exemptions, senior freeze, disability relief, and veteran benefits. Eligibility and benefit amounts vary by county and state law.
✓ Homestead Exemption
Removes a portion of home value from taxation for primary residences. Typical savings: $200–$800/year.
✓ Senior Citizen Freeze
Freezes assessed value for seniors 65+. Annual renewal required. Savings grow as home values rise.
✓ Veteran/Disability Exemptions
Honorably discharged veterans and disabled persons may qualify for full or partial exemptions.
✓ Agricultural/Preservation Credits
For farmland and properties in conservation. Requirements vary by county and state.
Union County Property Tax — FAQ
How do I look up my Union County property tax bill?
Where do I pay Union County property tax online?
What is the Union County property tax due date?
How do I contact the Union County tax office?
Can I appeal my Union County assessment?
What exemptions are available in Union County?
Research Disclaimer
PropertyTax.guide provides Union County property tax data for informational purposes only. Rates are derived from 2024 county-level data and represent averages. Your actual tax bill depends on your assessed value, applicable exemptions, and local millage rates. This site is not affiliated with any government agency. Always verify payment amounts and due dates with the county office contact details shown above before paying or visiting in person.