Follow the steps below to continue on your journey to becoming part of the Celt Family!

If you have already activated your Celt Login ID, please skip this step.

  • View guide for first time access to Outlook and Office 365.
  • If this is your first time logging into a UST system you will need to visit Microsoft 365 to set your password and security questions before you will be able to access myStThom
    • First time username for incoming students will be the first portion of your UST issued email address - eg. aquinast@stthom.edu (email), username would be: aquinast
    • First time password for incoming students will be the first three letters of your first name + first three letters of your last name (uppercase) + your 7 digit UST Student ID number.

Once you have succesfully created your O365 login credentials you will then have access to: UST Webmail, MyStthom, and Blackboard.

For more information, please contact the IT Help Desk at ithelpdesk@stthom.edu or 713-525-6900.

  • If you do not know your UST issued username/email, please contact your Admissions Counselor or the Office of Undergraduate Admissions at admissions@stthom.edu or 713-525-3500.

Let us know you accept your admission to UST! In your myStThom account click on the “Admissions” tile and then choose “Accept.”

You can submit your Free Application for Federal Student Aid (FAFSA) starting October 1!  When completing your form use UST’s FAFSA code, 003654.

UST will start sending financial aid packages in late November.  Once you receive your packages, you are able to review and accept any awards online.  For more information or help completing the FAFSA, visit our financial aid page.

Questions can be directed to finaid@stthom.edu or 713-525-2170.

Submit your $200 enrollment deposit* to secure your place in the entering class. Please contact the Office of Undergraduate Admissions at admissions@stthom.edu or 713-525-3500 if you have any questions.

Pay your Deposit Online:

You can access our online payment system here. Please make sure you are accessing the payment system from a PC.

  1. Enter your Student ID, First Name and Last Name as it appears on your acceptance package or acceptance email.
  2. This will prompt a redirect to our payment page (pop ups will need to be allowed.)
  3. Complete the payment information.

*Please make sure you are NOT logged in to your UST account before accessing the enrollment deposit system.

Pay Your Deposit by Mail
You can mail in your payment to:

University of St. Thomas
Office of Undergraduate Admissions 
3800 Montrose Blvd.
Box #7
Houston, TX 77006

Please make sure to include UST ID number and first and last name as it appears on your acceptance package.

Pay Your Deposit on Campus
If you plan to visit our campus for a tour or event you can bring your enrollment deposit with you!  Deposits must be paid before arriving to your registration appointment.

Questions be directed to admissions@stthom.edu or 713-525-3500.

If you are younger than 22 evidence of vaccination must be submitted in one of the following three formats:

  • A UST immunization form*
  • An official immunization record from a state or local health authority*
  • An official record received from state officials, including a record from another state

Whatever you submit must include the month, day and year the vaccination was administered.


*Must be signed or stamped by a certified, licensed physician or his/her designee, or public health personnel.

  • Immunization records can be submitted through your MYSTTHOM, using the Immunization Form Upload tile located on your homepage.

More information is available at Office of Health Promotion & Wellness. Questions, concerns and records can be submitted to immunizations@stthom.edu or 713-525-3513.

NOTE: students will not be able to register for classes or sign up for housing until the appropriate records are on file.

Students interested in housing need to complete a Housing Interest FormThis form is not a contract.  Once you have submitted the form, the additional immunization documents required for on campus housing and paid your $300 housing deposit*, the Office of Residence Life will contact you to sign a contract.  Students can learn more on our housing page.

Students who will be older than 25 at the start of school need to contact the Office of Residence Life to discuss possible options.

Questions can be directed to residencelife@stthom.edu or 713-525-3836.

*We are in the process of switching to a new housing software which should become active this week. There will be a new link for the security deposit coming soon. In the meantime, you can still submit your housing agreement and your immunization records!

During Freshman Orientation you will meet with an academic advisor and register for classes as well learn about resources, make your first UST friends, and have the opportunity to join clubs and organizations. We require you to attend this two-day Orientation, but we make your time on campus fun and engaging.

Fall 2022 students should register for one of our upcoming Freshman Orientations*:

  • June 8th - June 9th
  • June 22nd - June 23rd
  • July 13th - July 14th
  • August 10th - August 11th

In order to receive the RSVP link you must pay your enrollment deposit.

If you have any questions, please contact your admissions counselor or Karen Bautista at bautisk@stthom.edu or 713-525-3506.

*Please note this is a two-day program where you will stay the night in the residence hall and all meals will be included free of charge. Families will be invited to join a portion of day two of orientation. More information will be provided.