Williamson County, TN Property Tax Appeals: June Board
Researched from official Williamson County sources · Updated October 2026
You already have the deadline and the forms. The part you can't look up is whether your own assessment would actually hold up — this checks it against real comparable sales and shows you the dollar gap, in about two minutes.
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Williamson County, Tennessee homeowners who disagree with their value appeal to the County Board of Equalization, which meets every year in the month of June. The Assessor's page says to call the office the first week of June to schedule an appeal. An informal review with the Assessor is available any time, but the county says you still need to preserve your appeal rights by timely making your appointment with the Board.
Rules for the rest of Tennessee are in our Tennessee property tax appeal guide.
2026 deadline and where to file
Status as of October 10, 2026.
- County Board of Equalization: meets every year in June. Call the Assessor's office the first week of June to schedule.
- Preliminary rolls: the assessment roll with tentative assessments is available for public inspection in May.
- Notices: owners whose property changed in value are notified by mail.
- Informal review: contact the Assessor's office any time you have a question about your value. Settling there does not remove the need to book the Board.
- Who can file: only the taxpayer or entity named on the assessment roll, or a duly authorized agent, or the owner.
- State Board of Equalization: on or before August 1 of the tax year or within 45 days of the date the local board action was sent, whichever is later.
The 2026 Board window has passed. The next opportunity is June 2027.
Before you read another page of forms and filing rules, find out if there's actually a gap between your assessment and what comparable homes sold for. Two minutes, and you'll know whether the rest of this guide is worth your time.
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How assessments work in Williamson County
Each year the Williamson County Assessor creates an assessment roll of all county property, owners and values. The roll is made public in May. The County Board of Equalization, five members who live in various parts of the county and are appointed by the County Commission to two-year terms, hears owners' appeals, orders changes it finds warranted and makes the roll final for the year. The Assessor continues to prorate new construction until September 1, and then the rolls go to the County Trustee.
The Tennessee Comptroller says a disputed assessment generally must first be appealed to the county board or it becomes final.
Exemptions and their deadlines
- State property tax relief: Tennessee reimburses part or all of the property taxes paid by low-income elderly and disabled homeowners, disabled veteran homeowners and their surviving spouses. It is a payment from the state, not an exemption: you still get your bill and must pay it. Relief applies only to your primary residence, and a spouse's income is required for eligibility. You apply through your county trustee.
- Voucher: once approved, you present the relief voucher to the collecting official before the deadline date along with any balance due.
The state's tax relief page lists the program rules. Ask your county trustee for the current income limits and filing date.
How to appeal, step by step
- Pull your appraisal and record. Use the Williamson County Property Assessor's site to save your appraised value and property record, and compare with similar homes.
- Call the Assessor of Property. Contact the Assessor to review your valuation. Many disagreements settle here, but you still must book the Board.
- Schedule the Board of Equalization hearing. Call the Assessor's office in the first week of June to make your Board of Equalization appointment.
- Bring evidence of market value. Recent sales of similar homes, an appraisal, photos and repair estimates. The Board hears your complaint and can change a disputed assessment.
- Read the Board's notice. The county board sends notice of its decision. You may accept it or appeal.
- State Board of Equalization. File through the State Board's online filing service on or before August 1 of the tax year or within 45 days of the date the local board's notice was sent, whichever is later. A filing fee applies.
What property taxes cost in Williamson County
The U.S. Census Bureau's American Community Survey (2020-2024 five-year estimates) puts the median real estate tax paid by Williamson County homeowners at $3,004 a year, against a median home value of $751,900. That is an effective rate of about 0.40% of home value (median tax divided by median value). It is a countywide figure: your own rate depends on your city, school district and special districts, so read the rate on your actual bill. About 72,671 homes in the county are owner-occupied. Source: Census Reporter, tables B25103 and B25077.
Check your value before you file
Start with the free Grove Hopper over-assessment check: enter your address and we compare your assessment to the data and tell you whether an appeal looks worth your time. If it does, we prepare your appeal documents. You review, sign and file them yourself with the Williamson County Board of Equalization. We do not file for you or represent you, and we are not attorneys, accountants or a tax firm.
Contacts
- Williamson County Property Assessor: see williamsoncounty-tn.gov/appeals for the current office contact details
- State Board of Equalization: comptroller.tn.gov/boards/state-board-of-equalization
Williamson County appeal FAQs
When does the Williamson County Board of Equalization meet?
Every year in the month of June. The Assessor says to call the office the first week of June to schedule an appeal.
Can I settle my value with the Assessor and skip the Board?
You can often settle there, but the county says you still need to preserve your appeal rights by timely making your appointment with the County Board of Equalization.
Who can file a Williamson County property tax appeal?
The taxpayer or entity whose name and address shows on the assessment roll, a duly authorized agent, or the property owner.
What if I disagree with the Williamson County Board?
You may appeal to the State Board of Equalization, on or before August 1 of the tax year or within 45 days of the date the local board action was sent, whichever is later.
Is Tennessee property tax relief an exemption?
No. It is a state reimbursement for low-income elderly and disabled homeowners, disabled veteran homeowners and surviving spouses. You still receive and pay your bill, and you apply through the county trustee.
Does Grove Hopper file my Williamson County appeal?
No. Grove Hopper is a research tool. We check your property against the data and prepare your appeal documents. You review, sign and submit the appeal to the Williamson County Board of Equalization yourself. We are not attorneys, accountants or a tax firm.
You already have the deadline and the forms. The part you can't look up is whether your own assessment would actually hold up — this checks it against real comparable sales and shows you the dollar gap, in about two minutes.
Free · no account · we never sell your address
This guide is researched from public sources and updated periodically; deadlines and procedures can change — always confirm with the county before filing. Grove Hopper is a research tool, not a law firm or tax advisor.