U.S. Citizenship Through Marriage
N-400 Eligibility for a Permanent Resident Married to a U.S. CitizenIf you're a green card holder married to a U.S. citizen, you may qualify for U.S. citizenship sooner than most immigrants. Citizenship through marriage allows green card holders to naturalize as U.S. citizens after just three years, instead of the usual five. To qualify, you must be married to a U.S. citizen and meet specific requirements.
These citizenship requirements include living in a real marital relationship for three years and meeting other naturalization criteria like good moral character and physical presence. This guide explains who qualifies and how to apply through this faster path.
Requirements for Citizenship through Marriage
Permanent residents who meet certain requirements may file Form N-400, Application for Naturalization, to request citizenship. An applicant for naturalization who wants to file under the reduced three-year provision must meet the following citizenship requirements:
Marital Union Requirement
To qualify for citizenship through marriage, you must have lived in a marital union with your U.S. citizen spouse for the entire three years before applying.
This means more than just being legally married. You must still be living together and maintaining a real relationship — emotionally, financially, and physically. Living in marital union means that you and your spouse:
- Live together at the same address
- Share responsibilities like bills, finances, and decisions
- Are in a continuing and committed relationship
Short-term separations due to work, school, or travel usually don’t hurt your case. But a separation, divorce, or evidence of a broken relationship likely will.
Under the Trump administration, USCIS has increased scrutiny of marriage-based applications. They expect strong evidence that your marriage is genuine and ongoing. Key documents include joint tax returns, financial records, and shared insurance. CitizenPath’s supporting documents checklist helps you gather the right evidence to meet these requirements.
Citizenship Through Marriage with a Pending I-751
If you received a two-year green card through marriage, you're a conditional permanent resident. Before that green card expires, you must file Form I-751, the petition for the removal of conditions.
Many people wonder: Can I apply for citizenship while my I-751 is still pending? Yes, you can. As long as you meet the naturalization requirements — including being married to a U.S. citizen for the past three years — you may file Form N-400 while your I-751 is still being processed.
Time as a Conditional Resident Counts
Your two years as a conditional resident count toward the three-year permanent residence requirement for citizenship through marriage. You do not have to wait for a 10-year green card to apply.
Expedited I-751 and Dual Interview for I-751/N-400
When filing Form N-400 with a pending I-751, include a cover letter explaining the I-751 is still pending and request that both forms be reviewed at the same interview. Use our example letter as a guide, but update it to fit your case.
Your U.S. citizen spouse should attend the interview. Because Form I-751 is a joint petition, USCIS generally requires both spouses to be present. In many cases, USCIS will review the I-751 during the same interview as the N-400. This often speeds up the I-751 decision so they can move forward with your naturalization application.
Alternative Paths to Citizenship
5-Year Permanent Resident

U.S. Armed Forces
Example Use Cases
These hypothetical examples highlight four common situations faced by permanent residents applying for U.S. citizenship through marriage to a U.S. citizen.

Maria’s Successful Filing with a Pending I-751

Ahmed Filed Too Early Without Meeting the 3-Year Rule
Julia Lacked Proof of Marital Union

Carlos Faced Issues After a Separation
Frequently Asked Questions about Marriage-Based Citizenship
Complete Guide to the U.S. Naturalization Process
Find information about eligibility, costs, timelines, and how to prepare for the citizenship test all in one place. Visit our hub for citizenship through the naturalization process.
CitizenPath Helps Make Naturalization Easy
How to apply for citizenship through marriage with the peace of mind you've done everything correctly
Our affordable, online service makes it easy to prepare Form N-400 online. You’ll answer simple questions at your own pace, and we’ll check for eligibility — including continuous residence, physical presence, and other key criteria — before you pay. You'll get a ready-to-file application and personalized filing instructions. There's even live customer support and a money-back guarantee that USCIS will approve the application. Learn more about the Naturalization Package >>
STEP 1 | Check Eligibility | |
We're going to ask you a few questions to make sure you're eligible and preparing the correct form. | ||
STEP 2 | Prepare Form N-400 | |
Our software will guide you through the N-400 application using simple step-by-step instructions. | ||
STEP 3 | Download, Print and File | |
Once you're completely satisfied, you’ll be able to print your N-400 and customized filing instructions. | ||




