Filing a fee waiver request. Filing a number of different forms with the United States Citizenship and Immigration Services can be a costly endeavor due to the fact that the great majority of them require a fee. Immigration form fees are the primary source of funding for USCIS, but you can request a waiver if you cannot afford to pay the fee. If you are unable to afford the fees that are needed in order to file a number of immigration forms, then you can fill out the Request for Fee Waiver, the I-912.