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I-129F

Form I-129F: Petition for Alien Fiancé(e)

Filed by a U.S. citizen to bring a fiancé(e) to the U.S. on a K-1 visa for marriage within 90 days of arrival.

I-130

Form I-130: Petition for Alien Relative

The starting point for most family-based immigration — filed by a U.S. citizen or permanent resident to establish a qualifying relationship with a relative.

I-131

Form I-131: Application for Travel Document

Used to request advance parole (permission to travel and return while a green card application is pending) or a re-entry permit for existing permanent residents.

I-485

Form I-485: Application to Register Permanent Residence (Adjustment of Status)

The application to become a permanent resident (get a green card) from inside the United States, without leaving the country.

I-751

Form I-751: Petition to Remove Conditions on Residence

Filed by conditional permanent residents (typically from a marriage under 2 years old at green card approval) to convert to a full 10-year green card.

I-765

Form I-765: Application for Employment Authorization

The application for a work permit (EAD) — often filed alongside a pending green card application or another status that allows work authorization.

N-400

Form N-400: Application for Naturalization

The application to become a U.S. citizen — filed after meeting the required period as a permanent resident.

These guides are general information, not legal advice, and don't cover every possible situation. For anything complex or unusual about your case, a licensed immigration attorney can give you advice specific to your situation.