How to fill out the MV-300A in Wyoming
A field-by-field walkthrough of the Wyoming MV-300A (Application for Certificate of Title and VIN/HIN Inspection Form) for licensed used car dealers — what goes in every section, who signs what, and the documents you attach. Verified against the official form as of September 2026.
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Filling out the WY MV-300A after a sale:
- What it is
- Wyoming's combined title application and VIN inspection form (WYDOT MV-300A)
- Who completes it
- The buyer is the applicant and signs; the dealer typically fills the vehicle, seller and lien boxes and forwards the packet
- Where to file it
- The county clerk issues the title; the county treasurer collects sales tax and registers the vehicle
- Processing time
- Issued by the county clerk; the title isn't delivered until sales/use tax is paid (due within 65 days)
- Cost
- $15 title fee; $10 VIN inspection if needed; 4% state + county sales/use tax paid to the treasurer
This guide is informational and does not replace the official Wyoming instructions. Always confirm the current form and procedure with Wyoming Department of Transportation (WYDOT) Motor Vehicle Services — titles issued by the county clerk before you file.
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What the MV-300A is and why it matters
MV-300A is Wyoming's Application for Certificate of Title and VIN/HIN Inspection Form — one page that does two jobs. The top half is the title application (vehicle description, branded-title questions, purchaser and seller, lien); the bottom half is the VIN inspection, which is required only when the prior title is from another state. It goes to the county clerk, who issues the title; the buyer then registers with the county treasurer.
The quirk that matters most: MV-300A has no price or tax lines at all. Wyoming sales tax is paid by the buyer to the county treasurer — not collected by the dealer — at 4% state plus any county option tax for the county where the buyer lives, and it's due within 65 days of purchase. The dealer's job is to hand over the Wyoming Sales/Use Tax Statement (Department of Revenue Form 107) with the price, trade-in and tax base, because the clerk won't deliver the title until the tax is paid. This guide walks the current (01/20) form box by box.
MV-300A is a WYDOT form, but WYDOT doesn't issue the title — Wyoming titles are issued by the county clerk, and registration and plates are handled separately by the county treasurer. The buyer is the named applicant and signs; on a dealer sale the dealership typically assembles the packet and forwards it to the clerk. Wyoming law has the seller deliver the notarized title assignment when the vehicle is delivered — or within 30 days of the sale if a lender is holding the title — and when a Wyoming dealer issues temporary permits, the buyer has 60 days from the transfer to register (W.S. 31-2-201(a)(ii)(A)). The current revision is MV-300A (01/20); an older 01/18 version with a built-in notary block still circulates, so make sure you're using the current one.
Documents to have before you start
Gather these before you complete the MV-300A. A missing attachment is the number-one reason the Wyoming Department of Transportation (WYDOT) Motor Vehicle Services — titles issued by the county clerk bounces a title application back.
- The properly assigned title (or MSO for a new unit) — Wyoming requires the seller's assignment on the title to be signed before a notary. If a dealer reassignment form is used, ask the county clerk whether it must be notarized too.
- Wyoming Sales/Use Tax Statement for Motor Vehicle Sales (Form 107) — Department of Revenue form the dealer completes: sales price, trade-in, dealer-assigned rebate, tax base and the estimated tax at the buyer's residence rate. Both seller and purchaser sign.
- Dealer's invoice / buyer's order — County treasurers accept a dealer invoice as proof of purchase for the sales tax, and the buyer drives on it with the temporary permit.
- Odometer disclosure — Federal odometer disclosure on the title assignment (or a separate statement) where the vehicle isn't exempt by age.
- VIN inspection (out-of-state prior title only) — Completed on the bottom half of MV-300A. Not required for an MSO/MCO or a Wyoming prior title.
- Lien paperwork, if financed — Lienholder name and address and the lien amount; the lien is filed with the county clerk (a separate lien filing fee applies — confirm the amount with the clerk).
MV-300A, section by section
Vehicle type and description (top of form)
Check the type — Motor Vehicle for a car or truck — then fill the two-row description grid. The VIN must match the assigned title (or MSO) and the VIN plate. The State and Prior Title No. identify the title you're surrendering; if that state isn't Wyoming, the VIN inspection at the bottom is required. The purchase date also starts the buyer's 65-day clock to pay sales tax. Leave Date Title Issued and the NMVTIS box to the county clerk.
| Field | Who fills it |
|---|---|
Motor Vehicle / Trailer / Snowmobile / Watercraft / Mobile Home Check Motor Vehicle for a car or truck. | You (dealer) |
Date Title Issued Completed by the county clerk. | At the counter |
Manufacturer, Year | You (dealer) |
Vehicle / Hull Identification No. Must match the title and VIN plate. | You (dealer) |
NMVTIS Wyoming checks NMVTIS and will brand a title based on it — leave for the clerk unless told otherwise. | At the counter |
Body Style | You (dealer) |
Factory Price / MSRP Base MSRP for the year/make/model/trim; confirm with the county treasurer if unsure. | You (dealer) |
State, Prior Title No. The state and number of the title being surrendered. | You (dealer) |
Odometer Must match the odometer disclosure. | You (dealer) |
Weight | You (dealer) |
Purchase Date Starts the 65-day sales-tax deadline. | You (dealer) |
Vessel Length Watercraft only — leave blank for a car or truck. | You (dealer) |
Branded title information
Two yes/no questions: has the vehicle ever had a branded title (and if so, which brand), and has it been declared a total loss by an insurer or sustained damage of 75% of actual cash value. The person answering prints their name and signs. Answer from the title history, not memory — Wyoming carries prior brands forward and will brand a title from NMVTIS data even if the title in hand looks clean.
| Field | Who fills it |
|---|---|
Currently have or ever had a branded title? (Yes/No) Check the title and a history report. | You (dealer) |
If Yes, what title brand? | You (dealer) |
Declared a total loss or sustained 75% damage of actual cash value? (Yes/No) | You (dealer) |
Printed Name of Person Completing this Section + Signature Whoever answers the brand questions signs here. | You (dealer) |
Purchaser / Seller information
The purchaser is who the title is issued to; the seller is the dealership. Enter the buyer's legal name and address — that address matters beyond the title, because Wyoming sales tax is figured at the rate for the county of the buyer's principal residence, not where the dealership sits. Check the Joint Tenants With Rights of Survivorship box only if two buyers want that form of ownership.
| Field | Who fills it |
|---|---|
Name of Purchaser(s) | Buyer |
Joint Tenants With Rights of Survivorship? Only for co-buyers who want JTWROS ownership. | Buyer |
Address, City, State, ZIP (purchaser) Principal residence — it sets the county tax rate. | Buyer |
Name of Seller The dealership's name. | You (dealer) |
Address, City, State, ZIP (seller) | You (dealer) |
WY State tax & title fee calculator
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Wyoming sales/use tax is 4% state plus any county option tax for the county of the buyer's principal residence — enter that county's rate (county rates differ and change; check the county treasurer or Department of Revenue). The tax isn't on MV-300A: the dealer completes the Sales/Use Tax Statement (Form 107) and the buyer pays the county treasurer within 65 days of purchase. The trade-in reduces the taxable price only if its title is already in the buyer's name; a manufacturer's rebate assigned to the dealer is also deducted. Documentary fees, freight and dealer prep are part of the taxable price; titling/licensing fees and extended warranties are not. Late payment: 10% of the tax (minimum $25) plus 1% interest per month. Title fee $15; add $10 for a VIN inspection on an out-of-state title and the clerk's lien filing fee if financed. Registration is figured separately by the county treasurer.
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Lien information
If the buyer financed, enter the lienholder's name and address and the lien amount so the lien is recorded. In Wyoming the lien is filed with the county clerk; the lien filing number and filing date come from that filing, so leave them to the clerk unless the lien has already been filed. If the title or MSO isn't available at the time of sale, WYDOT's Transitional Ownership Document (MV-141) is the separate form used to perfect the lien.
| Field | Who fills it |
|---|---|
Name of Lien Holder | You (dealer) |
Address, City, State, ZIP (lienholder) | You (dealer) |
Lien Filing #, Filing Date Assigned when the lien is filed with the county clerk. | At the counter |
Lien Amount Match the retail installment contract. | You (dealer) |
Oath and purchaser signature(s)
The purchaser swears or affirms under penalty of perjury that the application is true, that they own the vehicle and that it's subject only to the liens shown. Each purchaser signs on the two signature lines. The current 01/20 revision has no notary block on the form, but some county clerks still ask for the purchaser's signature to be notarized — check with the buyer's county clerk before the buyer leaves the store.
| Field | Who fills it |
|---|---|
Purchaser Signature(s) (two lines) Each co-purchaser signs. | Buyer |
"VIN" or "HIN" Inspection Form (bottom half)
Required only when the prior title is from a state other than Wyoming — not for an MSO/MCO. The inspector prints the VIN, year, make, model and trim, notes whether it was verified with NCIC, identifies themselves and their agency, and signs. A licensed Wyoming dealer may perform the inspection only on vehicles in its own inventory or possession, and the inspection must happen in Wyoming; otherwise it's done by law enforcement. The form cites a $10 fee per VIN inspected (W.S. 31-3-102(b)). An unauthorized inspection can void the title application.
| Field | Who fills it |
|---|---|
Print VIN or HIN here Read from the vehicle, not copied from the title. | You (dealer) |
Year, Make, Model, Trim | You (dealer) |
VIN / HIN Verified With NCIC? (Yes/No) Circle one. | You (dealer) |
Inspector name, Badge/Title/DLR Number A dealer inspector enters the dealer number. | You (dealer) |
Agency or Entity Name (circle type or Other Entity) | You (dealer) |
State where inspected A dealer inspection must occur in Wyoming. | You (dealer) |
Signature, Date, Phone | You (dealer) |
The MV-300A is one car's paperwork. A 20-second read on your lot, and the tax-and-fee math for the whole deal — built for dealers, no signup. Free calculators dealers actually use — no signup, no email.
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Common MV-300A mistakes that cause rejections
Wyoming's Form 107 is explicit: the trade-in's title must already be in the purchaser's name to reduce the tax. A leased vehicle only counts if the buyout was exercised, titled to the purchaser, and tax paid on the buyout. Check the trade's title before you put the allowance on the tax statement.
Wyoming's taxable sales price includes costs the dealer incurs before the retail sale — documentary fees, incoming freight, prep and handling, accessories. Put the doc fee in the Form 107 total sales price. Titling and licensing fees and extended warranties stay out.
The county option tax follows the buyer's principal residence, not the store's location. A buyer who lives one county over may owe a different rate. Use the purchaser's address from MV-300A to pick the rate on Form 107.
Any vehicle coming off a non-Wyoming title needs the bottom half of MV-300A completed. A licensed Wyoming dealer can do it for units in its own inventory, in Wyoming — do it before the packet goes to the clerk so it isn't bounced back.
Wyoming brands titles from NMVTIS data and carries prior brands forward, so a 'No' that contradicts the history stalls the title. And use the current MV-300A (01/20) from WYDOT — older copies with a different layout are still floating around.
Common questions
What form do I use to title a vehicle in Wyoming?+
WYDOT Form MV-300A, the Application for Certificate of Title and VIN/HIN Inspection Form. The current revision is MV-300A (01/20). It's filed with the county clerk, who issues Wyoming titles; the county treasurer handles sales tax and registration.
Who issues titles in Wyoming — WYDOT or the county?+
The county clerk issues the certificate of title and files liens. The county treasurer collects the sales/use tax and registers the vehicle. WYDOT publishes the forms and administers the system but doesn't issue titles over the counter.
How much is sales tax on a car in Wyoming?+
4% state sales/use tax plus any county option tax for the county where the buyer lives. The rate is set by the buyer's principal residence, not where the car was bought. The buyer pays it to the county treasurer, and it's due within 65 days of the purchase date.
Does a trade-in reduce Wyoming sales tax?+
Yes. The taxable price is the sales price less the trade-in allowance, but only if the trade-in's title is already in the purchaser's name. A manufacturer's rebate assigned to the dealer at the time of sale is also deducted. A cash down payment is not.
Is the doc fee taxable in Wyoming?+
Yes. Wyoming's Sales/Use Tax Statement says the total sales price includes costs incurred by the seller before the retail sale, including documentary fees, incoming freight, and preparation and handling. Titling and licensing fees and extended warranties are not included.
What happens if Wyoming vehicle sales tax is paid late?+
Tax is due within 65 days of purchase. After that, the penalty is 10% of the tax due with a $25 minimum, plus interest of 1% per month or fraction of a month. The county clerk won't deliver the title until the sales or use tax receipt is presented.
Can a Wyoming dealer do its own VIN inspection?+
Yes, for vehicles in the dealer's own inventory or possession, and the inspection must take place in Wyoming. It's required when the prior title is from another state (not for an MSO/MCO) and is recorded on the bottom half of MV-300A. The form cites a $10 inspection fee.
Is there software that fills out the MV-300A automatically?+
Yes. Dealer management software like DealerVLO fills the Wyoming MV-300A from the deal you already entered — the VIN-decoded vehicle, buyer, co-buyer, lienholder, and sale price are placed for you instead of hand-writing them. For most states that's the official DMV form itself; where a state issues its form only through its own dealer portal, you get a print-ready worksheet with every value already in place. It's $29/month flat with a 14-day free trial, and the same deal also generates your federal documents (Bill of Sale, FTC Buyers Guide, odometer disclosure) and any other state's title forms.
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