2026 Williamson County tax bills are out and due by Feb. 28, 2027. Brentwood's combined rate is $1.49 per $100 assessed. Trustee: 615-790-5709.
Last checked Oct. 17, 2026. Rates and dates come from the Williamson County Trustee, the Property Assessor and the city’s property taxes page.
The 2026 Williamson County property tax bills went out in early October. If you own a home in Brentwood, one bill from the County Trustee covers both your city of Brentwood and Williamson County taxes. You can pay any time until Feb. 28, 2027 without interest.
Who to call
- Bills, payments, tax relief and tax freeze: Williamson County Trustee, 615-790-5709, Info.trustee@williamsoncounty-tn.gov, 8 a.m. to 4:30 p.m. weekdays
- Your appraised value, appeals, mailing address: Property Assessor, 615-790-5708
- Look up or pay a bill: search and pay property taxes
- Office: Williamson County Administrative Complex, 1320 W. Main St., Suite 203, Franklin
When are taxes due?
According to the Trustee’s frequently asked questions and the city’s property taxes page:
- Bills are mailed in early October to the owner on record on Jan. 1. If yours has not arrived by the end of October, call the Trustee.
- Taxes can be paid from the first Monday in October (Oct. 5 this year) through Feb. 28 of the following year. Partial payments are accepted.
- On March 1, interest of 1.5% is added, and another 1.5% on the first of every month after that.
- If you sold the house during the year, forward the bill to the new owner.
- If your mortgage company pays your taxes, the bill you get is for your records.
How to pay
The Trustee’s payment options:
- Online: at the Trustee’s payment site. Processing fees apply to electronic payments.
- By mail: Williamson County Trustee, 1320 W. Main St., Suite 203, Franklin, TN 37064.
- Drop box (checks only): outside the west entrance of the Administrative Complex.
- In person: cash, check or card, second floor of the Administrative Complex, west entrance.
Brentwood City Hall does not take property tax payments; the city sends everyone to the Trustee.
The 2026 rate in Brentwood
Rates are set each year by the Brentwood City Commission and the Williamson County Commission, not by the Assessor. The Trustee’s 2026 rates and calculator lists, per $100 of assessed value:
| Rate | |
|---|---|
| City of Brentwood | $0.19 |
| Williamson County | $1.30 |
| Total for a Brentwood address | $1.49 |
Brentwood has no special school district tax. Every Brentwood public school is in Williamson County Schools, which the county rate pays for. The city’s own page says most of the county’s property tax funds the school system; see our schools guide.
The city’s property taxes page still shows its older figure of $0.29 per $100, from tax year 2022. The Trustee’s table is the current one.
How the bill is figured
Tennessee taxes a share of the appraised value, the Assessor’s FAQ explains:
- Take the appraised value and multiply it by 25% for a home (40% for commercial and industrial property, 30% for business personal property). That is the assessed value.
- Divide the assessed value by 100 and multiply by the rate.
Example: a home appraised at $1,031,300, the Census Bureau’s 2020-2024 median home value for Brentwood, has an assessed value of $257,825. At $1.49 that is about $3,842 for 2026, of which about $490 goes to the city. Your own bill depends on your appraisal; the Trustee’s calculator does the math.
Rates across Williamson County
Only Thompson’s Station and the unincorporated county pay less. Nolensville, about six miles east, pays $1.64; Franklin, about seven miles south, pays $1.566 outside the Franklin Special School District and $2.2433 inside it.
How to appeal your value
The Assessor values every property and mails an assessment change notice in May to owners whose value changed, according to the county’s tax rolls and appeals page.
- Call the Assessor first at 615-790-5708. Many disagreements are settled at this step.
- Protect your appeal rights. The County Board of Equalization meets every June. Call the Assessor’s office the first week of June to book a hearing.
- If you are still not satisfied, take the appeal to the State Board of Equalization.
Only the owner on the roll, or an authorized agent, can file. The 2026 board has finished meeting, so the next chance to appeal is June 2027.
Tax relief and the tax freeze
The Trustee runs four relief programs for qualifying owners: state tax relief for low-income older and disabled homeowners, state relief for disabled veterans and their surviving spouses, the county’s relief for older homeowners and the county tax freeze. Income limits are in the county’s tax relief brochure. Appointments are required: call 615-790-5709.
Related guides: Brentwood home prices, moving to Brentwood and who to call at City Hall.
Frequently asked questions
When are Williamson County property taxes due?
Bills are mailed in early October and can be paid without interest through Feb. 28 of the next year. Interest of 1.5% is added on March 1 and on the first of each month after that.
What is the property tax rate in Brentwood, Tennessee?
For 2026 the combined rate is $1.49 per $100 of assessed value: $0.19 for the city of Brentwood and $1.30 for Williamson County.
How do I calculate my Brentwood property tax?
Multiply a home’s appraised value by 25% to get the assessed value, divide by 100 and multiply by $1.49. A $1 million home owes about $3,725 for 2026.
Who collects Brentwood city property taxes?
The Williamson County Trustee collects Brentwood city and Williamson County taxes on one bill. Call 615-790-5709.
How do I appeal my property value in Williamson County?
Call the Property Assessor at 615-790-5708 first. To keep your appeal rights, call the first week of June for a hearing with the County Board of Equalization, which meets in June.
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