A. Use Services Online to sign up for direct deposit, or to change the account or bank where your payment is sent. You will need your claim number and Personal Identification Number (PIN) to use the self-service website. You will be asked whether your account is a savings or checking account and to provide your account number and the routing number for your financial institution (this is found next to your account number on the bottom of your check). You should contact your financial institution for assistance in getting the routing number if you are not sure. When you make a change, the government will mail you confirmation of the change. You can also call or write to sign up for direct deposit or change your account or bank. See the following site: http://www.opm.gov/retirement-services/contact-retirement/. If you write, your letter should include your claim number. Or, you can submit a Standard Form 1199A, “Direct Deposit Sign-Up Form,” which is available at your bank. When you change the account you use for direct deposit, keep the old account open until a payment is posted to the new account. This will prevent having the payment returned if there is a problem with the new account.