Out-the-door price in Wisconsin

How Wisconsin works

• Wisconsin charges 5% state tax plus a 0.5% county tax in most counties, based on where you keep the car — your home, not the dealership. Milwaukee County is 0.9%, and the City of Milwaukee adds 2% on top, for 7.9% in all. Waukesha and Winnebago counties have no county tax.
• If your ZIP code straddles a county line or the City of Milwaukee's limits, you'll be offered more than one rate to choose from.
• Your trade-in reduces the taxable amount. Manufacturer rebates do not — Wisconsin taxes the price before the rebate, so you pay tax on money you never keep. A discount the dealer gives you does reduce it.
• The doc fee (Wisconsin calls it a service fee) has no dollar cap, only a requirement that it be reasonable and disclosed before the sale. It is taxed. A dealer that leaves it out of an advertised price has to say so clearly in the ad.
• Extended warranties and service contracts are taxed in Wisconsin. GAP coverage is not, as long as it is listed separately. This calculator taxes all finance-office products together, so if yours is mostly GAP the tax shown runs slightly high.
• Wisconsin dealers are required to handle your title and registration, so those fees are in the total: $214.50 for the title, $85 for a year of registration and $12 for new plates. Electric cars pay $175 more a year, and hybrids, including plug-ins, $75.
• Many counties and cities add an annual wheel tax of $10 to $50, and some places charge both — in the City of Milwaukee it comes to $71 a year. City wheel taxes follow city limits, which ZIP codes don't, so treat that line as an estimate.
• If you are transferring plates from a car you are replacing, you skip the registration fee, the plate fee and the wheel tax.

Rules last verified Oct 2, 2026. Our methodology.

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