In order to add money to Terp Express, you must first have a Terp Express account. If you do not have a Terp Express account, you can create one by visiting the Terp Express website and clicking on the Create Account link. Once you have created an account, you can add money to it by logging in and clicking on the Add Money link. You will then be prompted to enter your payment information. Once you have entered your payment information, you will be able to add money to your account.