Help prepare your teen for the future with our. Texas Teen Checking!If you're under 18 years of age or if you would like to open a joint account, please visit your nearest Frost financial center. You must be 18 years or older to open your own savings account with IBC Bank. Minors can enter into contracts with banks to open accounts without requiring parental or guardian approval. Teach your teens age 13-17 money management with a Power Youth Checking account. Enjoy no minimum balance, direct deposit requirement, or hidden fees. You will need your Social Security Number and, probably, some form of photo ID and a means of validating your address. How do I open an estate account? Just make an appointment at your local financial center and an associate will be happy to assist you.