Union County, SC Property Taxes (2026)

Union County owners pay a median of $558 a year on a median home value of $100,000, an effective rate of 0.56%. That's the 19th-highest rate of 46 South Carolina counties with Census data, above the South Carolina county median of 0.53%.

Updated October 2026 · Data: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023)

Is your Union appraisal too high?

We compare your value to recent Union County sales and show you in about a minute whether a appeal is worth it.

  • Free check
  • No credit card

Effective tax rate

0.56%

19th highest of 46 in SC

Median annual bill

$558

~$47/month

Median home value

$100,000

South Carolina county median

0.53%

Effective rate

What a protest could save you in Union County

Enter the market value from your appraisal notice. We apply Union County's 0.56% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$560
Savings at 10–15% off
$56–$84
Check my actual assessment →

Union County vs. South Carolina vs. U.S. property tax rates

Union County0.56%
South Carolina county median0.53%
U.S. county median0.84%

Key stat: Union County's effective property tax rate is 0.56%, vs. 0.53% for the median South Carolina county and 0.84% for the median U.S. county. It ranks 19th of 46 in South Carolina. Effective rate = median tax bill ÷ median home value, so it already reflects typical exemptions. (Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023))

How to appeal your property taxes in Union County

  1. 1

    Review your assessment notice

    Check the assessed value from the Union County Assessor. Compare it to recent sales of similar homes nearby.

  2. 2

    File your appeal before the deadline

    The Union County deadline is 90 days after notice. Missing it means waiting until the next assessment year.

  3. 3

    Gather evidence

    Recent comparable sales, photos of condition issues, repair estimates or an independent appraisal.

  4. 4

    Present your case

    Submit evidence or attend a hearing with the County Assessor.

  5. 5

    Get your decision

    If you win, your assessed value and bill go down. On a $558 bill, 10–15% off is $56–$84 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

Check my assessment

Property tax exemptions in South Carolina

South Carolina homeowners may qualify for exemptions that reduce taxable value. Check with the Union County Assessor for amounts.

Homestead exemption

For your primary residence. Reduces the value used to calculate your bill.

Senior / over-65

Many states add an exemption or freeze for owners 65 and older.

Disability

For homeowners with qualifying disabilities, often similar to the over-65 benefit.

Veterans

Disabled veterans may get partial or full exemptions depending on rating.

Frequently Asked Questions

What is the property tax rate in Union County, South Carolina?
The median effective property tax rate in Union County is 0.56%: a median annual bill of $558 on a median home value of $100,000. That's the 19th-highest rate of 46 South Carolina counties with Census data. Your own rate depends on which city, school district and special districts you're in. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023).
How much are property taxes in Union County?
The median Union County property tax bill is $558 a year, about $47 a month, compared with a South Carolina county median of $852.
What is the deadline to appeal property taxes in Union County?
The deadline to appeal in Union County is 90 days after notice. Missing it means waiting until the next assessment cycle.
Is Union County a high property tax area?
Union County's 0.56% effective rate is above the South Carolina county median of 0.53% and below the U.S. county median of 0.84%. That's the 19th-highest rate of 46 South Carolina counties with Census data.
Can TaxDrop help lower my Union County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Cherokee County

Rate: 0.44%

Median bill: $590

Chester County

Rate: 0.59%

Median bill: $846

Laurens County

Rate: 0.44%

Median bill: $673

Spartanburg County

Rate: 0.56%

Median bill: $1,217

Newberry County

Rate: 0.69%

Median bill: $1,090

York County

Rate: 0.50%

Median bill: $1,602

Fairfield County

Rate: 0.53%

Median bill: $683

Greenville County

Rate: 0.53%

Median bill: $1,445

← All 46 South Carolina counties

Stop overpaying on property taxes

See in about a minute whether your Union value looks too high.

Check my assessment — free