Williamson County assessor warns 2025 reappraisal could push Franklin values ~55–65%; certified tax rate aims to hold revenue neutral

Williamson County Property Assessor Brad Coleman told the Franklin Budget & Finance Committee on March 20 that the county’s 2025 reappraisal is likely to raise assessed values across Franklin by roughly 55–65 percent and that the county will calculate a certified (revenue-neutral) tax rate before any jurisdiction sets a new rate.

Coleman said the appraisal effective date is Jan. 1, 2025, and that his office expects to mail value notices in May. He said the certified tax rate — the rate calculated to keep a jurisdiction’s total property tax revenue flat after a reappraisal — would be calculated by his office and certified by the state comptroller’s Division of Property Assessment before municipalities set their budgets and tax rates.

Why it matters: a large increase in assessed value does not automatically equal a proportional increase in taxes. Under Tennessee law Coleman cited, the certified tax rate is intended to prevent jurisdictions from raising additional revenue solely because values were updated. But individual taxpayers can pay…