Getting a Marriage-Based Green Card is one of the most popular paths to becoming a permanent resident of the United States. If you’re married to a U.S. citizen or green card holder, you're likely eligible—but the process can be confusing at first. This complete 2025 guide will walk you through every step of applying for a Marriage-Based Green Card, including what forms to file, what documents to include, how much it costs, and how to avoid delays.

When applying for a marriage-based green card through Adjustment of Status (AOS), USCIS requires proof that the petitioner spouse (a U.S. citizen or permanent resident) has sufficient and stable income to financially support the immigrant spouse. The primary financial document is Form I-864, Affidavit of Support, but one of the most effective supporting documents to strengthen your case is an Employment Verification Letter. This letter helps USCIS confirm the sponsor’s curre