Canyon County


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The Assessor acts as a vendor for the Idaho State Transportation Department and provides a more convenient location for Canyon County residents to handle vehicle registrations.  This local auto license office tends to be very busy around the beginning and end of each month.  To avoid long lines, renew your registration online.  More information on vehicle registration, fees and requirements can be found at

Attention Idaho Boat Owners:

The U.S. Coast Guard is making changes to the vessel registration process that will impact the registration and renewal process for all vessels and owners in the United States, including Idaho.  Click here for more information. 

Identification Requirements

Effective July 1, 2009, legal identification is required to title and register vehicles per 49-401B.  Please be prepared to provide your Idaho driver license or identification card, or your social security number, as well as the full legal name and physical address for all owners listed on the vehicle.  In the case of a business, the business name and EIN will be required.  View the Personal Information Matrix  for a full list of requirements.  By bringing this information to the motor vehicle office, you will be prepared and your transactions can be processed more quickly and easily.

Identification is required for online renewal as well.  Simply type your Idaho driver license or identification card number,  social security number,  or EIN and the record will automatically validate the information.  In the event that your identification can not be validated, it will be necessary to complete the transaction in person.  

Why is this required?

The Idaho Transportation Department (ITD) Division of Motor Vehicles (DMV) is working towards a "One Person-One Record" system where all of a person's (or business entity's)title, registration and driver records will be associated with that person (or business) in one master record.  This system will help DMV comply with a state law that will require identification of all of a person's registrations.  

How does this benefit me?

More Convenience:When DMV's "One Person-One Record" system is operational and you move to an new address, you will only have to report the address change one time to update all of your driver and vehicle records. (Remember - you are required by law to notify the DMV within 30 days of changing your address.)  The current system requires you to update each record separately.  If you forget to update a record, you may not receive your renewal notice.

Less Stress or Confusion: When legal or administrative action is taken against someone with the same or similar name as yours, it is less likely you will be contacted with bad news by mistake.

Which address should I provide if I have several?

Provide the address that you consider your home - the place that you plan to return and remain.  Do not provide your workplace, vacation, or part time residence address.

If I am just renewing a registration, do I need to comply with all the name, number and address requirements?

Yes, when renewing an existing registration please provide your identification along with your physical address.

What if I have a grantor trust, a single member LLC, or a sole proprietorship that does not have an EIN?

After we have received and recorded documentation of your business status or trust, the system will generate a customer number for that entity.  This number should be kept for use in future title and registration transactions.

6107 Graye Lane
Caldwell, ID  83607


Phone: (208) 455-6020
Fax: (208) 455-6019


Office Hours:
Monday - Friday
8 am - 5 pm
Excluding Holidays


Auto License Online


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1115 Albany St. Caldwell, Idaho 83605 | Phone: (208) 454-7300