Wyoming Title Transfer in a Private Sale

In a Wyoming private sale, the seller writes your name in the "Assignment of Ownership" box, signs the back of the title in front of a notary, clears any lien, and gives you a bill of sale. You then pay sales tax at your county treasurer within 65 days and take the title to your county clerk, which charged $15 for a new title in the county fee list I checked. An out-of-state title also needs a VIN inspection done by law enforcement. Expect to bounce between two county offices.

I read WYDOT's pages, the 2026 statutes and five county sites on the morning of October 17, 2026. Where they disagree, I say so.

Clerk for the title, treasurer for tax and plates

Wyoming splits the job between two county offices. The WYDOT titles, plates and registration page says titles and lien filings go through the county clerk in the county seat where you live, while plates and registration come from the county treasurer in that same county seat. So when a forum post says "go to the DMV," read that as the courthouse, and expect two windows.

The order matters. Crook County's clerk page cites W.S. 31-2-103(d): before a certificate of title is delivered to you, sales tax has to be paid and you have to show a receipt from the county treasurer. That makes the route treasurer, clerk, then treasurer again for plates.

The notary step sellers get wrong

Wyoming wants the seller's signature notarized. Under W.S. 31-2-104 in the certificate-of-title statutes, the owner signs an assignment and warranty of title, lists every lien, and does it before a notarial officer. The Albany County clerk adds two rules: the buyer's name goes in the "Assignment of Ownership" box before the seller signs, and every owner named on a Wyoming title must sign in front of the notary. For Wyoming titles issued on or after January 1, 2020, one notarized signature is enough when the owners are joined by "or" and not marked JTWROS.

Meet the seller at a bank or shipping store that has a notary, and don't take a title signed at home with the buyer line blank. An open, pre-signed title is how curbstoners flip cars without ever showing up in the chain of ownership, and you inherit the mess. Albany County's rule is simple: no title in hand, no deal, unless you can verify a lienholder holds it.

What to bring to the clerk

For a Wyoming-titled car, the Crook County clerk page lists the original title signed and notarized as above, a completed odometer disclosure on the title or a separate statement, and a lien release for any lien shown. The odometer piece isn't required for model year 2010 or older, which matches the federal exemption in 49 CFR 580.17. Crook County's fee list shows $15 for a title and $10 for a VIN inspection.

Out-of-state titles add a step. Albany and Crook both say that unless you bought from a Wyoming dealer, every out-of-state title needs a completed VIN inspection form, and Crook says law enforcement can do it. Our VIN verification for title transfer guide shows where the numbers sit on the car.

Sales tax at your county's rate, within 65 days

Wyoming's state sales and use tax is 4%, and counties can add local option taxes, so the rate follows where you live, not where the car was parked. The Park County treasurer lists 4% total, while the Teton County treasurer shows 7% (the state 4% plus a 1% general purpose and a 2% specific purpose tax). On a $9,000 private sale that's $360 in Park County and $630 in Teton.

The clock is 65 days from purchase. Park County says paying late brings a $25 penalty, then the greater of $25 or 10% of the tax from day 66, plus 1% interest a month. The counties don't agree on paperwork, though. Park says you can prepay tax without a title using a notarized bill of sale showing year, make, VIN and purchase date, while the Uinta County treasurer says no bill of sale is required for a purchase from an individual. Get a notarized one with the real price anyway; it's your only proof of what you paid. More on this in our used car sales tax rundown.

Driving it home and registering

A September 22, 2023 WYDOT memo to county clerks and treasurers says that under W.S. 31-2-201 you can drive a newly bought car unregistered for 45 days with a properly executed title, or 60 days on a conforming bill of sale when a bank or auction holds the title and promises it within 30 days. Park County adds that the 45 days apply inside Wyoming only, so keep the signed title with you.

Registration has two parts: a state fee, which Park County shows at $30 for cars since July 1, 2017, and a county fee figured from the car's factory cost and age. The clerk prints that factory cost on the Wyoming title, so a ten-year-old luxury SUV can cost more to plate than you'd guess.

Brands Wyoming finds on its own

WYDOT's titles page carries a warning in capital letters: Wyoming will brand a vehicle based on NMVTIS data even if the current title shows no brand. If a car was totaled elsewhere and later retitled clean, you can walk out of the clerk's office with a branded title you never bargained for. Check the VIN on NMVTIS before money changes hands, and read our Wyoming salvage and rebuilt title rules if anything shows up.

NMVTIS tracks titles and brands, not service visits or most crash repairs, so pull your own history report instead of trusting a PDF the seller emails you. See our CARFAX for private-party buyers guide. CarVins is a licensed CARFAX and AutoCheck reseller, not affiliated with CARFAX, AutoCheck or Experian. In mid October 2026 one report has been about $5.50 as a guest or $4.50 as a member, and both brands together near $6.75, against $39.99 to $44.99 retail; the checkout page has the final number.

Sources

• WYDOT: titles, plates and registration
• Crook County Clerk: vehicle titles
• Park County Treasurer: vehicle license
• WYDOT memo of Sept. 22, 2023 and Wyoming Statutes 31-2 (both linked above)