A filing fee is required for many immigration forms. If you do not submit the correct fee, we will reject your form.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 may download and print forms for free from the All Forms page. Please be sure to carefully read and follow the form filing instructions. Filling Out a Money Order to Pay the Form I-765 Filing Fee. Below is information on filling out sections of a money order. The 'Pay to the order of' line should say 'US Department of Homeland Security' and the memo should say something like 'I-751 application and biometrics'. Explore current and historic federal campaign finance data on the new fec.gov.