Your application fees are not the only costs associated with your green card application. Your green card application requires you to submit multiple supplemental documents about your life including: Copies of official documents proving your spouse’s citizenship or their lawful permanent resident status; A copy of your government-issued ID with photo; A copy of your marriage certificate; Copies of the legal terminations of any prior marriages for you and your spouse (if applicable); Financial statements; Two identical passport-style photos in color of you and your spouse (separately); Birth certificates for any children you had with your spouse; Any other documents that prove you have an ongoing marital union; Certified police and court records regarding all your criminal charges, arrests, or convictions (regardless of the final disposition); Inspection and admission or inspection and parole documentation; Proof that you have continuously maintained lawful status since you arrived in the U.S.; and Proof your spouse has continuously maintained lawful status since they arrived in the U.S. If you do not already have these documents, you might have to request them from government agencies and other institutions. Your requests for copies of these documents may come with fees. Also, your application for a green card may require you or your spouse to travel, and you should prepare for those costs early.