U.S. Citizenship Through Marriage

N-400 Eligibility for a Permanent Resident Married to a U.S. Citizen

If 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.

citizenship requirements for 3 year LPR

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.

Example N-400 Cover Letter for Applicants with Pending I-751
Download Letter

Alternative Paths to Citizenship

5-Year Permanent Resident

If you've been a permanent resident for at least five years, you may be eligible to naturalize now.
Learn about theGeneral Provision
U.S. armed forces basis for naturalization

U.S. Armed Forces

If you've served at least one year in the U.S. military, you may be eligible to naturalize now.
Learn about theMilitary Provision

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.

Successful naturalization filing on the basis of marriage to a US citizen

Maria’s Successful Filing with a Pending I-751

Maria received her green card through marriage and filed Form I-751 to remove conditions. After three years of permanent residence, she filed Form N-400 while the I-751 was still pending. She included a clear cover letter and brought her husband to the interview. USCIS approved both cases during the same appointment.
Unsuccessful naturalization filing on the basis of marriage to a US citizen

Ahmed Filed Too Early Without Meeting the 3-Year Rule

Ahmed applied for citizenship 2 years and 10 months after getting his green card. He assumed the 90-day early filing rule applied, but didn’t realize the clock starts only after three years of marriage to a U.S. citizen, not just holding a green card. His application was denied, and he lost the filing fee.
Delayed N-400 decision because of weak evidence of marital union

Julia Lacked Proof of Marital Union

Although Julia had been married for over three years, she and her U.S. citizen spouse kept finances separate and had few shared documents. USCIS questioned the legitimacy of the marriage and requested more evidence. She had to scramble to collect supporting documents and delay her application for months.
Unsuccessful application for citizenship through marriage

Carlos Faced Issues After a Separation

Carlos was still legally married but had been living apart from his U.S. citizen spouse due to relationship problems. He applied under the 3-year rule, but USCIS found that they weren’t living in “marital union.” He was denied citizenship through marriage and told he could reapply under the 5-year rule once eligible.

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.

Citizenship Through Naturalization

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
No signup required.

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
There’s no obligation to purchase.

Our software will guide you through the N-400 application using simple step-by-step instructions.

STEP
3
Download, Print and File
Pay only $199 + USCIS fees.

Once you're completely satisfied, you’ll be able to print your N-400 and customized filing instructions.

CitizenPath Naturalization Package to file Form N-400 (Application for Naturalization)
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