Union County, TN Property Taxes (2026)

Union County owners pay a median of $720 a year on a median home value of $186,300, an effective rate of 0.39%. That's the 86th-highest rate of 95 Tennessee counties with Census data, below the Tennessee county median of 0.50%.

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

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Effective tax rate

0.39%

86th highest of 95 in TN

Median annual bill

$720

~$60/month

Median home value

$186,300

Tennessee county median

0.50%

Effective rate

What a protest could save you in Union County

Enter the market value from your appraisal notice. We apply Union County's 0.39% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$727
Savings at 10–15% off
$73–$109
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Union County vs. Tennessee vs. U.S. property tax rates

Union County0.39%
Tennessee county median0.50%
U.S. county median0.84%

Key stat: Union County's effective property tax rate is 0.39%, vs. 0.50% for the median Tennessee county and 0.84% for the median U.S. county. It ranks 86th of 95 in Tennessee. 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 Property Assessor. Compare it to recent sales of similar homes nearby.

  2. 2

    File your appeal before the deadline

    The Union County deadline is June 1 – July (reappraisal years). 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 Property Assessor.

  5. 5

    Get your decision

    If you win, your assessed value and bill go down. On a $720 bill, 10–15% off is $72–$108 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

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Property tax exemptions in Tennessee

Tennessee homeowners may qualify for exemptions that reduce taxable value. Check with the Union County Property 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, Tennessee?
The median effective property tax rate in Union County is 0.39%: a median annual bill of $720 on a median home value of $186,300. That's the 86th-highest rate of 95 Tennessee 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 $720 a year, about $60 a month, compared with a Tennessee county median of $865.
What is the deadline to appeal property taxes in Union County?
The deadline to appeal in Union County is June 1 – July (reappraisal years). Missing it means waiting until the next assessment cycle.
Is Union County a high property tax area?
Union County's 0.39% effective rate is below the Tennessee county median of 0.50% and below the U.S. county median of 0.84%. That's the 86th-highest rate of 95 Tennessee 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

Claiborne County

Rate: 0.49%

Median bill: $728

Grainger County

Rate: 0.51%

Median bill: $871

Campbell County

Rate: 0.38%

Median bill: $651

Knox County

Rate: 0.48%

Median bill: $1,332

Anderson County

Rate: 0.62%

Median bill: $1,333

Jefferson County

Rate: 0.47%

Median bill: $990

Hamblen County

Rate: 0.46%

Median bill: $863

Hancock County

Rate: 0.45%

Median bill: $533

← All 95 Tennessee counties

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