A filing fee is required for many immigration forms. If you do not submit the correct fee, we will reject your form.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'. These are generally very affordable and easy to fill out. Which address should we write on the money order? Is it the same as the USCIS address where we will have to send the form? This article provides information on the different payment methods available for paying the filing fees, along with instructions for each method. Do not use the initials "USDHS" or "DHS. Online payments may include a service fee. Follow the instructions at taxexpress.utah.gov.