Make the check payable to: U.S. Department of Homeland Security. Do not abbreviate this.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. See how much you need to pay for a passport, and what types of payment to use. You can also use our fee calculator to figure out the cost of your passport. • Documents must be sent via certified mail with tracking and without return receipt. Go to Sample STEM OPT I-765 for help completing the I-765. • Documents must be sent via certified mail with tracking and without return receipt.