Document checklist · N-400

Copy of your Green Card, front and back

Where to find it: The physical card; copy both sides onto one sheet if you can.

USCIS fee payment, or Form I-912 if you request a fee waiver

Where to find it: The current amount is on the uscis.gov fee calculator. By mail you pay by card (G-1450) or bank account (G-1650); paid to USCIS separately.

Clear copies of each document, not originals

Where to find it: A copy shop, or your phone camera in good light with the whole document in the frame.

Two identical, recent passport-style photos (2x2 inches)

Only if you live outside the U.S. (military members and certain spouses)

Where to find it: Pharmacies and photo counters shoot them to USCIS size; pencil your name and A-Number on the back.

Proof of your spouse's citizenship, marriage certificate, and proof of 3 years living together

Only if you apply after 3 years as the spouse of a citizen

Where to find it: Your spouse's birth certificate or passport; joint accounts, lease, children's birth certificates, insurance, and 3 years of IRS transcripts.

Proof that each earlier marriage ended

Only if you or your spouse were married before

Where to find it: Divorce decree, annulment, or death certificate issued by the civil authority.

Legal document for a name change

Only if your name changed through marriage, divorce, or a court order

Where to find it: Marriage certificate, divorce decree, adoption decree, or court order, registered with the civil authority.