Buying in Williamson County, Tennessee means state sales/use at 7%, up to $44 single-article tax, plus the county’s 2.75% local option on only the first $1,600 of taxable price ($44 once you clear $1,600)—not 2.75% of the full sticker. On a $30,000 cash dealer purchase with no trade, that tax stack is $2,188.00; add title $14.00, plate $26.50, and wheel tax $25.75 for about $2,254.25 before a lien or EV fee. Confirm figures with the Williamson County Clerk in Franklin and TN Department of Revenue local sales tax.
How much is vehicle tax / registration in Williamson County?
Tennessee’s motor vehicle sales/use tax is 7% of the taxable price (price minus a same-time trade-in). A state single-article tax of 2.75% applies to the portion from $1,600.01 through $3,200 and caps at $44—so any taxable price of $3,200 or more carries the full $44. Williamson County then adds its local option of 2.75%, but only on the first $1,600, which is $44 whenever taxable price is at least $1,600.
On top of tax, Williamson County collects a CTAS-listed automobile wheel tax of $25.75 with registration, separate from the statewide passenger plate of $26.50 per year. Title is typically $14 (state $5.50 + clerk $8.50). A lien notation is $11 per lien. Battery-electric vehicles add $200 on renewals in the 2024–2026 window; hybrids/PHEVs add $100.
Tax follows the buyer’s locality—not merely the dealer’s lot. Cities such as Franklin, Brentwood, Spring Hill (part), Fairview, Nolensville, and Thompson’s Station may share the county local option or show a separate city row in the DOR file; when your address sits inside a city with its own local option, confirm the rate with the clerk or DOR local sales tax table before you close.
Example — $30,000 dealer cash, no trade (ICE)
Example — same purchase financed with one lien
Step-by-step formula
Use the taxable price after any qualifying same-time trade-in. Documentary fees charged on the deal usually stay in the sales base under Tennessee practice—follow what DOR and your clerk treat as taxable.
- Taxable base = purchase price − same-time trade-in (plus taxable doc fees if charged).
- State sales/use = taxable × 0.07.
- Single-article = 2.75% of the band $1,600.01–$3,200, capped at $44 (full $44 once taxable ≥ $3,200).
- Local option = min(taxable, 1600) × 0.0275 → $44 when taxable ≥ $1,600.
- Title = $14 typical; lien = $11 if financed.
- Plate = $26.50/year; wheel tax = $25.75 per CTAS 2026 (confirm at clerk).
- EV / hybrid = +$200 BEV or +$100 hybrid/PHEV when those renewal extras apply.
Step math — $1,200 taxable (below single-article band)
Step math — $30,000 with $5,000 trade-in (taxable $25,000)
Trade-in / dealer vs private
A same-time trade-in lowers the taxable base for state, single-article, and local measures. Once taxable price still sits at $1,600 or above, the local dollar amount stays at $44—trade-ins cut the 7% line first. Private-party purchases use the same rate stack. If the stated private price is under 75% of fair market value, Tennessee’s affidavit rules can change the taxable measure—ask the clerk before you understate the price.
Trade-in — $30,000 price, $5,000 dealer trade
Private party — $18,000 taxable (ICE)
Local option and wheel tax in Williamson County
Williamson County’s local option is 2.75% on the first $1,600 only (TN DOR TNR2026Q3 county row). That is not a Georgia-style title ad valorem tax, and it is not applied to the entire purchase price. On top of tax, Williamson County collects a CTAS-listed automobile wheel tax of $25.75 with registration, separate from the statewide passenger plate of $26.50 per year.
Places served include Franklin, Brentwood, Spring Hill (part), Fairview, Nolensville, and Thompson’s Station. If you live inside a municipality with its own local option row, use that address’s rate—not a guess based on the dealer’s city.
Local dollars at full local base
Registration-year stack (ICE renewal, no new sale)
Title and registration fees
Budget $14 for a typical title (state $5.50 + clerk $8.50), $26.50 for a standard passenger plate, and the county wheel line noted above. Financed deals add $11 per lien notation. Specialty plates, penalties, and office extras can raise the total—the clerk’s receipt controls.
Fee block — cash title, no lien
Fee block — BEV renewal extras
Complete worked example
Cash dealer purchase in Williamson County: $30,000 price, no trade, ICE, no lien. Tax situs is your residence locality.
Complete — $30,000 cash dealer purchase
Complete — same deal with $5,000 trade-in
Gifts, new residents, renewals
Gifts and inheritance are not automatically $0. Tennessee zeros the 7% / single-article / local stack only when the Department of Revenue exemption path and paperwork qualify. Title, registration, and wheel tax may still be due. Military members should follow the DOR Tax Manual for Military Members—do not assume a full wipe. New residents generally owe Tennessee use tax with credit for sales tax paid to another U.S. state on the state portion; local option is often still modeled per DOR/clerk instructions. Renewals skip sales tax and pay plate + wheel (+ EV extras if applicable).
Renewal only (ICE)
Qualifying exempt gift (when DOR path is affirmed)
FAQ
Is local tax 2.75% of my whole car price? No. Williamson County local option applies only to the first $1,600 of taxable price ($44 at full base).
Do I still pay the $44 single-article? Yes, once taxable price reaches $3,200. It is a state charge, separate from local option.
What about wheel tax? CTAS lists $25.75 for Williamson County automobiles in 2026; confirm at the clerk if a private act changes mid-year.
Dealer city or my home city? Buyer’s locality controls local option. Confirm city rows when you live inside a municipality.
Private sale under market value? Affidavit rules can apply if price is under 75% of FMV—ask the Williamson County Clerk.
If you are comparing deals across Franklin, Brentwood, Spring Hill (part), Fairview, Nolensville, and Thompson’s Station, keep the first-$1,600 local cap and the CTAS wheel figure in the same worksheet so registration week does not surprise you after the sales-tax line looks “done.” Specialty plates, mail fees, and late penalties are outside these core figures—bring your bill of sale, ID, insurance, and any trade or exemption paperwork the clerk lists.
Conclusion
Williamson County buyers should plan for Tennessee’s 7% and $44 single-article ceiling, the county’s 2.75% local option capped at the first $1,600, and the registration stack of plate plus wheel tax $25.75. Work the taxable price after trade-in, then add title and tag lines before you sign. Verify the final total with the Williamson County Clerk in Franklin and the Department of Revenue’s current local sales tax file.
This page estimates Williamson County vehicle tax and registration costs from published Tennessee Department of Revenue and CTAS figures. The Williamson County Clerk and the Department of Revenue set the amount you pay.