Individuals applying for U.S. Citizenship are assessed a $595 filing fee, as of 2015, and may be required to pay an additional $85 biometric fee where applicable, according to the U.S. Department of Homeland Security. Fees may be discounted for military applicants and individuals 75 years or older.
The filing fee for U.S. citizenship must be paid in full and submitted jointly with the Form N-400, the application for naturalization, according to the U.S. Department of Homeland Security. Fees are accepted only in the form of a cashier's check, personal check or money order, as of 2015. Filing fees and applications for naturalization should be submitted to lockbox facilities authorized by the U.S. Citizenship and Immigration Services.