Online Banking Conversion

Welcome to Firstmark Credit Union!

We are excited to announce that the systems conversion completed successfully on December 1, 2013. You now have access to all services offered by Firstmark Credit Union.

How to register for Online Banking?

To register for online banking, please call our Member Contact Center at 210-442-0100.

Login Instructions
Getting Started with Online Banking is Easy and Secure.

Because your security is our first priority, we ask that you call 210-442-0100 to request a username and login password.

  1. Enter Your Username & Password
  2. Select Your eStamp
    To protect your account, first you will be asked to choose an eStamp. You may choose from one of the six images presented or use the arrow at the bottom right to see more options. After you select an image, you can personalize it with a caption. You should see your eStamp every time you login to your account. If you do not see your eStamp, close your browser completely. Return to the website by keying and access your account.
  3. Establish Your Security Questions  
    Security questions provide an additional layer of security. Security questions will be asked if you or someone else tries to access your account from a computer that is normally not used to access your account. You’ll need to re-enter your password and answer at least three questions.
  4. That’s it … Select Continue to Access Your Account!

What browsers work with Online Banking?

To use Online Banking you need to have the latest browser that uses 128-bit encryption. Internet Explorer 7 and higher, Firefox and Safari. Please download one of the three supported browsers listed below.

How to register for mobile banking if you do not have online banking?

If you have never logged into Online Banking, click the "Register" link under Account Access on the left-hand column of our website. Follow the on-screen instructions.

How to register for mobile banking?

  • Click on the "Options" tab
  • Then click on "Mobile Settings"
  • Check "Enable web access for your mobile device
  • Enter your mobile phone number
  • Choose your wireless provider. NOTE: if you are a Cingular user that merged into AT&T, please select Cingular as your carrier.
  • Select the accounts you want to access from your mobile phone
  • Click the "Submit" button and a text message will be sent to your phone:

You can access mobile banking by browsing on your phone to

How do I set-up email alerts?

  • Click on the "Options" tab
  • Click on the "Alerts"
  • Choose the type of alert you would like to set-up such as: "Events, Balance or Personal."
  • Now choose what will prompt an alert. Some alerts will allow you to enter a dollar amount such as the "Balance" alert below:

How do I reset my password?

  • Click on the "Options" tab
  • Under "Modify Login Information," enter your current password then your new password. Passwords must be between 4 and 10 characters
How do I set-up Interbank Transfers?
  • To enable this function, please call the Member Contact Center at (210) 442-0100 or (800) 683-1211. Once enabled, follow the instructions below.

  • Click on the "Online Banking" tab
  • Click on "Interbank Transfers"
  • Click on "Add Account"
  • Fill out the Enrollment Entry
    • Account Name - This is the nickname you will see within Online Banking to transfer to or from
    • Financial Instituion Name - The full name of the institution you wish to transfer to or from
    • Routing Number - This is the nine digit number of the other financial institution
    • Account Number - The account number of the other financial institution
  • Click "Submit"
  • You will receive a micro payment of less than a dollar within three business days. This micro payment will be used to verify your Interbank Transfer. Enter the amount of the micro payment to verify the account. NOTE: do not use dollar signs or decimals when entering the amount. (i.e. if the amount is $.74 then you would enter 74)
How do I send secure messages to the credit union?
  • Click the "Contact Us" from the upper right-hand corner of the screen
  • Click "New"
  • Submit your message