Applying for a green card through marriage to a U.S. citizen typically incurs several expenses. As of the last training cut-off, these include a $1,140 filing fee for the I-485 form (adjustment of status), a $535 fee for form I-130 (petition for alien relative), and an $85 biometric services fee. Please note that these amounts can change, and there may also be additional costs for medical examinations, translation services, and legal fees.