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We’re here to help! Our current hours of operation are 8:00 a.m. to 5:00 p.m. Monday through Friday, CST.

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Our call volume is typically highest from 10:00 a.m. to 2:00 p.m., which may help you plan the best time to contact our office. Having your 8-digit contract number and Purchaser or Beneficiary name ready will also help us better assist you with your account.

Every call is important and we are committed to assisting you as quickly as possible.

Toll Free Phone Number: 1-800-445-GRAD (4723), OPTION 2

Out of Country Phone Number: (512) 936-0666

Correspondence Address

Texas Guaranteed Tuition Plan
P.O. Box 13407
Austin, TX 78711-3407

Mail Payments To

Texas Guaranteed Tuition Plan
P.O. Box 12018
Austin, TX 78711-2018
(For security purposes, do not include the SSN on your payment.)

Physical Address

Texas Guaranteed Tuition Plan
311 E. 14th Street
2nd Floor, Suite 200
Austin, TX 78701

Fax Number

(512) 475-0081

Customer Service E-mail:

NOTE: For security reasons, social security numbers should not be sent by e-mail, nor can we accept account changes or cancellations by e-mail with one exception: We will accept Change of Addresses submitted by the Purchaser or Joint Purchaser by e-mail. Please view our General FAQs and forms available for download. You can direct any account change questions regarding an existing account to 1-800-445-4723, Option 2.

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  • Account information
  • Cancellation Status
  • Payment information (including automatic payments)
  • Distribution information, including enrollment verification letters
  • Transaction history
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  • Update mailing address, e-mail address or phone number

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