Marriage to a U.S. citizen can create an important family-based immigration option. It does not, by itself, issue a green card, erase an immigration violation, or guarantee approval.
Marriage creates eligibility; a case still must be filed
Usually, the U.S. citizen files Form I-130 to prove the qualifying relationship. If the spouse is eligible to apply inside the United States, the couple may file Adjustment of statusThe process of applying for a green card from within the United States, rather than through a consulate abroad. Filed on Form I-485.See it in the glossary, often with Form I-485Application to Register Permanent Residence or Adjust Status, the form used to apply for a green card from inside the United States.See it in the glossary. If the spouse is abroad, the case generally proceeds through the National Visa Center and a U.S. embassy or consulate. USCIS describes the immediate-relative category in its green card guidance.
Eligibility is not the same as admissibility
The applicant must still satisfy the legal requirements for permanent residence. Issues such as certain criminal conduct, fraud or misrepresentation, prior removals, health-related grounds, Unlawful presenceTime spent in the United States without admission or after an authorized stay has ended, which can count toward a reentry bar. Under INA 212(a)(9)(B), more than 180 days but less than a year, followed by departure, can lead to a 3-year bar, and one year or more can lead to a 10-year bar, if the person seeks admission again within that period. Some periods, such as time spent under age 18, do not count.See it in the glossary, or other InadmissibilityA finding that a person is not eligible for a visa, admission or a green card under the grounds listed in INA 212(a). The grounds cover health, crimes, security, public charge, misrepresentation, unlawful presence, prior removal and others. Some grounds can be waived.See it in the glossary grounds can require additional evidence or a waiver. A marriage-based case also requires proof that the marriage is real, not entered into solely for an immigration benefit.
Where the spouse lives changes the process
A spouse already in the United States may qualify for adjustment only if the statutory requirements are met. A spouse abroad normally uses Consular processingApplying for an immigrant visa at a U.S. embassy or consulate abroad, as an alternative to adjustment of status inside the United States.See it in the glossary. The forms, interview location, medical examination, and travel risks differ between those routes. Filing a petition does not itself give permission to work or remain in the United States.
Conditional residence may apply
If the marriage is less than two years old when permanent residence is granted, USCIS may issue a two-year conditional green card. The couple generally must later file to remove conditions under USCIS’s conditional-residence rules. Missing that filing window can put residence at risk.
Citizenship comes later
Marriage to a citizen can support a shorter naturalization timeline for some permanent residents, but the applicant must first become a lawful permanent resident and meet residence, physical-presence, good-moral-character, and other requirements. USCIS explains the separate naturalization process.