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Tax Assessor Collector

Larry Gaddes is a sixth generation Texan that has served as Chief Deputy of the Williamson County Tax Assessor/Collector’s office for over 6 years.  He has earned his Certified Tax Administrator designation – the property tax profession’s highest certification held by only 19 other tax office professionals throughout the state.  In addition to his experience in the tax profession, Larry served 20 years in leadership roles throughout Central Texas with a respected local business.   

Larry is committed to finding efficient, effective solutions to the issues caused by the explosive growth of the County.  He is driven to continue providing the citizens of Williamson County the highest level of customer service, professionalism and technology and will draw on his balanced experience in both the public and private arenas. 

He earned his Bachelor of Business Administration with a Major in Management from Texas State University in San Marcos.  Larry is also an active member of the Tax Assessor/Collectors Association and Texas Association of Assessing Officers.  In addition, he enjoys serving as an instructor and presenter on property tax matters for both associations.

Larry and Heather, his wife of 15 years, live in Round Rock with their 2 sons.    He and Heather are active members of Rock Pointe church, coach their boy’s baseball teams and volunteer their time and resources at Round Rock ISD and other local organizations.




The Georgetown, Round Rock & Cedar Park Williamson County Tax Assessor/Collector's offices new lobby hours:

Monday 8:00am to 5:30pm

Tuesday thru Friday 8:00am to 4:30pm 

       The Taylor office located at 412 Vance St. Suite #1, is closed from 12:30 p.m.- 1:30 p.m.

98.7% Customer Service Satisfaction Rating
Here’s what our customers are saying about our staff:

RE: Sandy- Georgetown Office

"I am impressed by the service you provided. One does not usually encounter such level of professionalism in these sorts of circumstances and pleasant on top!!!"



RE: Sam- Cedar Park Office

"He has amazing customer service! He makes you smile, very charismatic, good job hiring him.”



RE: Anthony – Georgetown Office

"Anthony was very professional, respectful and made sure he answered any questions I had. Really appreciate the high level of service."



RE: Kristen & Randon– Round Rock Office

Kristen & Randon worked quickly on my title work and where very nice. Great customer service!”



RE: Dale- Georgetown Office

Dale was wonderful, professional & informative. It was a pleasure dealing with this difficult and stressful transaction.”



RE:Sandra- Information Services

Please know that it was a pleasure to work with Sandra. She went above and beyond to help me resolve an issue for my daughter and I sincerely appreciate her efforts. Not many people these days are willing to take the time to do anything extra that falls out of their immediate job description. Awesome customer service!”



Learn About Our Office!

To better understand the functions and responsibilities of your local Williamson County Tax Office, please view our informational video segment from "County Government Works."  We strive to do the best job we can in assisting our citizens.  We appreciate your business and look forward to seeing you all soon!  Enjoy!

Interesting Tax Assessor/Collector Office Facts 

Williamson County Tax Assessor/Collector Statistics

Constitutional Requirements

The Texas Constitution, Article 8, Section 14 - "There shall be elected by the qualified voters of each county, an Assessor and Collector of Taxes, who shall hold office for four years....." Larry Gaddes is the Williamson County Tax Assessor. The Tax Assessor-Collector is elected countywide by voters for a four year term and has specific duties outlined in the Texas Constitution and by statutes passed through Legislative action.
Motor Vehicle Division
Property Tax Division

Office Calendar and Tax Office Closings

Tax Office Calendar

Click here to see a calendar of upcoming office closures and important dates.

Regular Office Hours

Georgetown, Round Rock, Cedar Park
Monday 8:00 a.m.- 5:30 p.m.
Tuesday thru Friday 8:00 a.m- 4:30 p.m.

Monday thru Friday 8:00 a.m.- 5:00 p.m

Payment drop boxes located inside office lobbies.

 The Georgetown office is the only location with an outside night deposit drop box.

   Mailing address for correspondence and payments

Williamson County Tax Office
904 S. Main Street
Georgetown, TX 78626

Checks and money orders should be made payable to Larry Gaddes, CTA.
Payments made by check may be converted to an electronic funds transfer.
Failure to use correct mailing address will cause processing delays.

All Locations
Email us at...
Motor Vehicle Division
*Please provide your vehicle identification number in your email in order for us to more easily assist you*
Property Tax Division
Customer Service Feedback
Williamson County Courthouse
710 Main Street Georgetown, TX 78626
Main Telephone: (512)943-1100
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