Estate planning at Stellar Bank
How to protect 5 Stellar Bank accounts — manage beneficiaries in-branch, fund a trust in-branch, and file death claims
Brand change
Stellar Bank merged into Prosperity Bank effective July 1, 2026. Branches continue to operate under the Stellar Bank name and the 713-499-1800 customer service line until operational integration scheduled for March 2027. Effective July 2026.
Stellar Bank is now part of Prosperity Bank. The procedures below reflect Stellar Bank's accounts during the transition. View the Prosperity Bank estate planning page.
Stellar Bank
Subsidiary of Prosperity Bancshares, Inc. (successor to Stellar Bancorp, Inc.)
stellar.bank→Customer Service
Phone713-499-1800
Mailing Address
Stellar Bank, P.O. Box 41314, Houston, TX 77241-1314
Bank By Phone / Debit Card Activation
Cancel Lost/Stolen Debit or ATM Card
Customer Complaints
Prosperity Bank (successor, effective 2026-07-01)
WebsiteLearn more→
Customer Service
Phone713-499-1800
Mailing Address
Stellar Bank, P.O. Box 41314, Houston, TX 77241-1314
Bank By Phone / Debit Card Activation
Cancel Lost/Stolen Debit or ATM Card
Customer Complaints
Prosperity Bank (successor, effective 2026-07-01)
WebsiteLearn more→
Customer Service
Phone713-499-1800
Mailing Address
Stellar Bank, P.O. Box 41314, Houston, TX 77241-1314
Prosperity Bank estate/deceased services (successor)
WebsiteNotify online→
Verified Jul 2026
How your Stellar Bank accounts transfer at death depends on how each one is titled and whether a beneficiary is on file. Of those, 5 can name a trust as beneficiary or be retitled into a trust. Getting these details right keeps assets out of probate and ensures they reach the intended recipients.
Stellar Bank handles beneficiary designations in branch and by phone. Accounts can also be retitled into a trust to keep them out of probate entirely.
There are two sides to estate planning at Stellar Bank: setting things up while you're alive, and the process survivors follow after a death.
Preparing your estate
Beneficiaries and trust funding
How to update beneficiaries in-branch, fund a trust in-branch, and review 5 account types at Stellar Bank.
View details →When someone dies
Death claim process
4-step process, 4 required documents, and contact information for survivors.
View details →Stellar Bank operates in select states, so estate planning procedures may vary by location. Confirm availability in your state before initiating trust funding or account changes.
Frequently asked questions
Stellar Bank is the combined bank formed from Allegiance Bank and CommunityBank of Texas, now operating under the single Stellar Bank name. Accounts originally opened under the predecessor names are serviced by Stellar Bank; use the Stellar Bank customer service line, 713-499-1800, for estate matters.
Stellar Bank operates only in Texas, so Texas small-estate procedures (such as the small estate affidavit) apply when the estate qualifies and no probate is opened. Confirm Texas's current requirements before relying on a small-estate affidavit in place of Letters Testamentary or Letters of Administration.
Sources
Data sourced from Stellar Bank primary sources (7 pages reviewed). How we research.
Stellar Bank
Subsidiary of Prosperity Bancshares, Inc. (successor to Stellar Bancorp, Inc.)
stellar.bank→Customer Service
Phone713-499-1800
Mailing Address
Stellar Bank, P.O. Box 41314, Houston, TX 77241-1314
Bank By Phone / Debit Card Activation
Cancel Lost/Stolen Debit or ATM Card
Customer Complaints
Prosperity Bank (successor, effective 2026-07-01)
WebsiteLearn more→
Customer Service
Phone713-499-1800
Mailing Address
Stellar Bank, P.O. Box 41314, Houston, TX 77241-1314
Bank By Phone / Debit Card Activation
Cancel Lost/Stolen Debit or ATM Card
Customer Complaints
Prosperity Bank (successor, effective 2026-07-01)
WebsiteLearn more→
Customer Service
Phone713-499-1800
Mailing Address
Stellar Bank, P.O. Box 41314, Houston, TX 77241-1314
Prosperity Bank estate/deceased services (successor)
WebsiteNotify online→
Verified Jul 2026
Estate planning articles
Learn how to protect your Stellar Bank accounts and other assets with trusts, beneficiary designations, and estate planning documents.
