Official fees
Wisconsin car sales tax chart
State rate
5%
applies statewide
County rate
0.5%
adopted by nearly every county except Waukesha & Winnebago
Milwaukee County rate
0.9%
raised from 0.5% Jan 1, 2024
City of Milwaukee rate
2%
stacks with county tax, city residents only
Dealer sale base
price − trade-in
Private sale base
full agreed price
no trade-in credit
Genuine gift / qualifying family transfer
Exempt
Figures verified July 2026 against official sources (listed below). Always confirm the final amount with the Wisconsin DMV (WisDOT) - counties can add small local fees.
- State rate
- 5%
- Local add-ons
- Up to 2.9% (Milwaukee)
- Highest combined
- 7.9% - city of Milwaukee
- No county tax
- Waukesha & Winnebago
- Genuine gift
- Exempt, $0 consideration
Overview
What determines your rate isn't where you buy the car - it's where you'll customarily keep it. A Waukesha resident who buys from a Milwaukee dealer still pays Waukesha's rate, not Milwaukee's. This calculator applies the right combination for your address, plus Wisconsin's real trade-in and gift rules.
Same state, other costs
More Wisconsin vehicle costs
Common questions
Wisconsin car sales tax FAQ
- Which Wisconsin counties charge no vehicle sales tax add-on?
- Waukesha and Winnebago are the only two counties that haven't adopted the 0.5% county tax, so vehicles kept there are taxed at the flat 5% state rate - unless you're inside a taxing city, which for vehicles currently only applies to Milwaukee.
- Why is Milwaukee's rate so much higher?
- Milwaukee stacks three layers: the state's 5%, Milwaukee County's 0.9% (raised from 0.5% in January 2024), and a 2% city of Milwaukee sales tax that took effect the same month. That's 7.9% total for anyone who keeps their vehicle inside the city limits - county residents just outside the city pay 5.9%.
- Does my trade-in lower the tax I owe?
- At a dealership, yes - Wisconsin taxes the price minus your trade-in allowance when both happen in the same transaction. Sell your old car privately and buy a new one separately, though, and you get no credit; you're taxed on the full purchase price of the new vehicle.
- Is a private-party sale taxed differently than a dealer sale?
- The rate is identical, but private buyers pay the tax directly to WisDOT when they title the vehicle rather than at a dealer's counter, and there's no trade-in deduction. Wisconsin doesn't run a presumptive-value check the way some states do - tax is based on the price you report.
- Is gifting a car really tax-free in Wisconsin?
- Yes, when no money or other consideration changes hands. It's marked as a 'Gift' exemption on the title application. Family transfers - spouse, parent, child, step-relations, in-laws, grandparent/grandchild, sibling - are also exempt, though only when the vehicle already carries a current Wisconsin title.
- Do I owe Wisconsin tax on a car I bought out of state?
- Yes, as use tax at your local combined rate when you title it in Wisconsin, with a credit for any legitimate sales tax you already paid elsewhere. If the other state's rate was lower, you owe Wisconsin the difference.
Receipts
Official sources
Every number on this page comes from these documents - check them yourself.
