Registration To Renew your Registration, you can visit your local Williamson County Tax Office or do so On-line.	Title Neglecting to handle paperwork when you buy or sell a vehicle could result in fines or penalties for someone else's mistake.  For more information click here.	Forms To view a list of forms that you may need when registering, titling, buying, selling or importing your vehicle, click here.
Dealers  Dealers must file with the county appraisal district a Dealer’s Motor Vehicle Inventory Declaration form listing the total value of the inventory sold in the prior year. For more information, click here.	New Residents For requirements, fees, locations and other information click here.	Military   Click below to review the Military Packet to see what steps to take as a member of the Military, click here.

Title and New Resident transfers are processed Mon - Fri 8:00 a.m. to 4:30 p.m. All transactions require original signed documents. Faxed, scanned or emailed copies are not acceptable and signatures must be in ink. Information is based on actual owner transactions. 

 Many people wait until the end of the month to get their motor vehicle tags renewed, causing longer lines at the Williamson County Tax Assessor/Collector’s four offices.  Below are tips to help you avoid standing in those lines.

• Online renewals may be processed through the Texas Department of Motor Vehicles registration renewal link and are assessed a $3 convenience fee.  Allow a week for your documents to be processed.

• Mail-in your registration renewal and payment by the 15th of the month in order to have your vehicle registration processed and returned by mail before month end.

• Current or unexpired vehicle registration renewals can be done at AAA on Research Blvd and at all Williamson County HEB Business Centers (except in Taylor). 

• Avoid the first and last week of the month, as well as lunch time if you go in person to the Tax Assessor/Collector’s Office.

• If you are going to the tax office to pay property taxes, remember drop boxes are found inside at every location. We also encourage residents to pay property taxes by mail and honor United States Postal Service post marks. Receipts will be provided upon request.