Yes, principal only payments can be made for mortgages online.

Principal only payment may also be made by mail, at a branch, or by calling 903-657-8521 or 1-877-566-2621.

To make a principal only payment online:

  1. Login
  2. Go to "Move Money" > "Pay a Loan"
  3. Choose the "From" account, which is the account you wish to pay the loan from
  4. Choose the "To" account, which is the loan you wish to make a payment on
  5. Choose the payment type of "Principal Only Payment"
  6. If you would like this payment to recur, click the "Make this a recurring transfer" box
  7. Click the "Submit" button