Welcome to the Hot Springs County, Wyoming County Treasurer Department
Property tax collection, motor vehicle registration, license plates, and related Treasurer services for Hot Springs County.
Property Taxes
Property taxes in Wyoming run approximately nine months in arrears. Taxes are assessed as of January 1. In accordance with state statute, the name of the owner as of that date must appear on the tax bill, even if the property is sold before the bill is issued.
Tax bills are generally mailed during the first week of September each year and are sent directly to taxpayers. Mortgage companies are provided tax information upon request.
Tax Payment Questions
Contact the County Treasurer’s Office with questions about tax payments or tax bills.
Property Information Questions
Questions about property value, veterans’ exemptions, ownership, or address corrections should be directed to the County Assessor.
Online Property Tax Payment Notice
The Treasurer’s Office is currently streamlining the online payment system. If you are unable to add your taxes to the online payment cart, please use the pay-by-phone system.
After entering the jurisdiction code, enter the six-digit parcel number or Local ID. On the tax bill, this is the first six digits shown in blue at the upper-right of the statement.
Permanent Plates for Light Trailers
Permanent registration options for trailers weighing less than 1,000 pounds.
Beginning July 1, 2023, owners of light trailers weighing less than 1,000 pounds may purchase a permanent trailer plate.
Trailers Under Six Years Old
A one-time permanent registration fee of $350 applies.
Older Trailers
Fees include a $50 administration charge, five times the county registration fee due at six years of service, and five times the state registration fee.
If the trailer is sold, the permanent plate expires and must be removed. Permanent plates cannot be transferred to a new owner.
Is Your License Plate Expired?
If your plate resembles the one shown below, the plate is expired. Please visit the Treasurer’s Office to renew your registration.

Specialty License Plates
Alternative Wyoming license plate designs are available through the Treasurer’s Office and WYDOT.
View All Wyoming Specialty Plates
Treasurer Documents and Resources
Access Treasurer forms, documents, property-tax tools, motor vehicle resources, and related state information.
Important Documents
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Vehicle Sales Tax Exemption for Tribal Members
The vehicle sales tax exemption for a tribal member applies only when the sale occurs on the Wind River Indian Reservation.
The Treasurer’s Office requires evidence that the seller delivered the property to a location on the Wind River Indian Reservation. Acceptable evidence includes a shipping document from the common carrier or an Affidavit of Delivery .
The Wyoming Department of Revenue requests that the Affidavit of Delivery be placed on company letterhead and signed by the purchaser. This requirement also applies to person-to-person sales.
Requirements to License a Vehicle
- Wyoming title
- Proof of insurance for motorized vehicles
- Proof that the vehicle was previously registered to you in another state, or proof that sales tax was paid
- For a new purchase, payment of sales tax based on the rate in effect at your Wyoming residence
How Motor Vehicle County Fees Are Calculated
County registration fees are based on the vehicle’s original manufacturer’s suggested retail price, including the year, make, model, and trim package.
The calculated valuation is multiplied by 3% to determine the county fee. This is an ad valorem tax charged in place of property tax.
State Registration Fees
Passenger vehicles have a flat state fee of $30. State fees for trucks, trailers, motor homes, and campers are based on weight.
Six-Year Valuation Schedule
60% · 50% · 40% · 30% · 20% · 15%
Contact the Treasurer’s Office for help estimating registration fees, especially before moving a vehicle into Wyoming.