Car sales tax in Waukesha County, Wisconsin: 5%

The rate in Waukesha County

Vehicle sales tax in Waukesha County is 5%, covering all 32 ZIP codes in the county.
That is below the 5.5% most Wisconsin counties charge — about $175.00 less tax on a $35,000 car than the typical county in the state.
1 other county in Wisconsin charge the same rate, out of 72.

What a $35,000 car actually costs in Waukesha County

Sales tax (5% — Waukesha, Waukesha County) — $1,763.95
Doc fee (typical) — $279.00
Title fee — $214.50
Registration (annual) — $85.00
New plate fee — $12.00
Out the door — $37,354.45 on a $35,000 used car, before any down payment or financing.

Cities and towns in Waukesha County

Waukesha, Brookfield, Menomonee Falls, New Berlin, Big Bend, Butler, Colgate (Waukesha County part), Delafield, Dousman, Eagle, Elm Grove, Genesee Depot, Hartland, Lannon, Merton, Mukwonago, Muskego, Nashotah, North Lake, North Prairie, Oconomowoc, Okauchee, Pewaukee, Sussex, Wales — all at 5%.

ZIP codes in Waukesha County

53005, 53007, 53008, 53017, 53018, 53029, 53045, 53046, 53051, 53052, 53056, 53058, 53064, 53066, 53069, 53072, 53089, 53103, 53118, 53119, 53122, 53127, 53146, 53149, 53150, 53151, 53153, 53183, 53186, 53187, 53188, 53189.
Any of these resolves to Waukesha County in the calculator at 5%.

Waukesha County against nearby counties

Crawford County is 5.5% — $175.00 MORE tax on a $35,000 car than Waukesha County.
Dane County is 5.5% — $175.00 MORE tax on a $35,000 car than Waukesha County.

Run your own numbers

Vehicle price

$

The negotiated (or advertised) selling price, before fees and tax.

Your ZIP code

Tax and registration follow where YOU register — not the dealership.

Condition

New Used CPO

Fuel

EV/PHEV surcharges apply in many states.

More options — trade-in, rebates, doc fee, add-ons

Trade-in value

$

Reduces your taxable amount only in states that allow it.

Trade-in loan payoff

$

Display-only in the equity math — doesn't affect tax.

Manufacturer rebate

$

Taxed in some states, a tax-free discount in others.

Dealer discount

$

Off-invoice discount from the dealer — different from a rebate for tax.

Dealer doc fee (if quoted)

$

Leave blank to use your state's cap or the typical amount.

Dealer add-ons total

$

Nitrogen, VIN etch, protection packages… labeled negotiable in the output.

F&I products total (VSC, GAP…)

$

Excluded from tax in some states when itemized separately.

Model year

MSRP / vehicle value

$

Needed in states with value-based registration (AZ VLT, NV GST).

Financing the purchase I have a plate to transfer (matters in Florida — skips the $225 initial registration)

Truck / commercial (California weight fees)

Vehicle type

Pickups always use the unladen-weight schedule (VC §9400) — never CVRA.

Curb (unladen) weight, lbs

On the door-jamb sticker. Blank = typical half-ton bracket ($80).

Axles

Declared GVW/CGW, lbs

As declared on the REG 4008. CVRA vehicles skip the TIF.

Used vehicle details (California)

Plate expiration (month)

Expired or expiring within 120 days of purchase → renewal fees ride along with the deal. Blank = assume they're due (safe estimate).

No current California plates (out-of-state car — full first registration + smog test due)

My price already includes…

Some dealers now fold fees into the advertised price (FTC pressure; California's total-price law). Check what yours covers so nothing gets counted twice.

Doc fee Emissions / smog testing charge (used vehicles)

Common questions

What is the car sales tax rate in Waukesha County?

5% on a vehicle purchase, combining the Wisconsin state rate with the local rate.

How much is tax and fees on a $35,000 car in Waukesha County?

About $2,354.45 on top of the price, bringing it to roughly $37,354.45 out the door. The breakdown is above.

Car sales tax in Waukesha County, Wisconsin: 5%

The rate in Waukesha County

What a $35,000 car actually costs in Waukesha County

Cities and towns in Waukesha County

ZIP codes in Waukesha County

Waukesha County against nearby counties

Run your own numbers

Common questions

What is the car sales tax rate in Waukesha County?

How much is tax and fees on a $35,000 car in Waukesha County?

Elsewhere in Wisconsin

Winnebago County

Crawford County

Dane County

Dunn County

Eau Claire County

Full Wisconsin out-the-door guide

How Wisconsin sales tax works