In the Memo or "For" section, write "USCIS I-765" and your SEVIS ID number, found in the in the upper left-hand corner of your I-20. However, you can file many USCIS forms online.To fill out the money order, you will need to "Pay to" U.S. Department of Homeland Security. This article provides information on the different payment methods available for paying the filing fees, along with instructions for each method. You must present a photo ID, such as your passport, when purchasing a money order. Filling Out a Money Order to Pay the Form I-765 Filing Fee.