A filing fee is required for many immigration forms. If you do not submit the correct fee, we will reject your form.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. These are generally very affordable and easy to fill out. Please complete the "Paid to the Order of" section with "US Department of Homeland Security". Cashier's checks may become void after a certain period of time. 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'. Submitted online, payment can also be made online.