Can a U.S. Citizen Marry an Illegal Immigrant?

Yes, a US citizen can marry an undocumented immigrant, and the marriage is fully valid. No state asks about immigration status when issuing a marriage license, and where you hold the ceremony does not change that. What marriage does not do is give your spouse legal status on its own. It makes your spouse eligible for a green card through you, but whether that path is short and safe or long and risky depends almost entirely on how your spouse originally entered the United States.

Marriage Makes Your Spouse an Immediate Relative

Once you’re married, your spouse becomes your “immediate relative” under federal immigration law. Immediate relatives of US citizens are not subject to the annual visa caps that create multi-year backlogs for other family categories.¹ A visa number is always available, so the timeline is a function of government processing, not queue position.

Every case starts with Form I-130, Petition for Alien Relative, filed with US Citizenship and Immigration Services. The I-130 establishes that you have a qualifying relationship.² You submit a certified marriage certificate, proof that any earlier marriages ended legally, and passport-style photos of both spouses taken within the past 30 days.³ The filing fee is $675 on paper or $625 online.⁴

The I-130 by itself does not grant status. It’s a family-relationship petition. What comes after it is where entry method starts to matter.

How Your Spouse Entered the Country Decides Everything

There are two paths to a green card through marriage, and your spouse can only walk one of them. The question that decides which one is simple: did your spouse enter the United States through a port of entry where an immigration officer inspected them, or did they cross the border without being inspected?

An expired tourist visa still counts as a lawful entry. So does a student visa, a work visa, or any entry where a Customs and Border Protection officer waved your spouse through. Someone who overstayed by ten years still entered “with inspection.” What matters is that first crossing.

Entered With Inspection: Adjustment of Status

If your spouse was inspected and admitted or paroled into the country, they can apply to become a permanent resident without leaving the United States. This is called adjustment of status, and it uses Form I-485, which can be filed alongside the I-130 or after it.⁵

Federal law requires that an adjustment applicant was “inspected and admitted or paroled.”⁶ Immediate relatives of US citizens are also exempt from certain bars that would otherwise apply, including bars for having overstayed a visa or worked without authorization. That is why this route is generally the clean one. Your spouse stays in the country, applies for a work permit while waiting, and eventually attends a green card interview at a USCIS field office. The I-485 filing fee is $1,440 for applicants over 14.⁴

Entered Without Inspection: Consular Processing and the Bar Problem

If your spouse crossed the border without being inspected, they generally cannot adjust status inside the country.⁶ They must leave the United States and attend an immigrant visa interview at a US embassy or consulate abroad. This is consular processing, and it comes with a serious catch.

Under federal law, anyone unlawfully present in the country for more than 180 days who then leaves faces a re-entry bar. Between 180 days and one year of unlawful presence triggers a three-year bar. More than one year triggers a ten-year bar.⁷ The bars only activate on departure. That means the act of flying home for the consular interview can itself lock your spouse out of the United States for years.

A narrow exception exists under Section 245(i) for people who were the beneficiary of an immigrant petition or labor certification filed on or before April 30, 2001. For petitions filed after January 14, 1998, the person also had to be physically present in the country on December 21, 2000. Those who qualify can adjust status inside the United States despite entering without inspection, with an added $1,000 fee.⁸ Very few people still qualify.

The Provisional Waiver Can Bridge the Gap

Because the unlawful presence bars can separate couples for a decade, USCIS created the provisional unlawful presence waiver, Form I-601A. Your spouse applies for the waiver while still in the United States. If it’s approved before they leave for the consular interview, the bar is waived in advance, so the trip abroad becomes weeks rather than years.

To qualify for the provisional waiver, your spouse must:

Be physically present in the United States when filing and when giving biometrics
Be at least 17 years old
Have an approved I-130 and a pending case with the Department of State
Show that being denied re-entry would cause extreme hardship to you (the citizen spouse) or a qualifying parent who is a citizen or lawful permanent resident
Have no ground of inadmissibility other than unlawful presence

Your spouse is not eligible if they are in active removal proceedings or have a final removal order.⁹

“Extreme hardship” is the hard part. USCIS decides it based on the totality of circumstances, weighing family ties in the United States, responsibility for children or elderly relatives, financial impact, medical conditions, conditions in the country your spouse would return to, and how integrated your family is in American life.¹⁰ The hardship must fall on you or another qualifying relative, not on your undocumented spouse. Ordinary sadness about separation is not enough. You need concrete, documented consequences.

Proving the Marriage Is Real

USCIS treats spousal petitions with a skeptical eye. Your marriage must be “bona fide,” meaning you both entered it intending to build a life together and not to obtain immigration benefits.¹¹ The government will reject a marriage it decides was entered into solely for a green card.

Submit as much evidence of your shared life as you can pull together. Joint bank statements, a lease or mortgage in both names, utility bills, insurance policies covering both spouses, photos across time and events, and sworn statements from people who know you as a couple all help.² Volume and variety both matter. A thin file with a certificate and a handful of photos invites questions; years of overlapping financial and household records answer them.

At the green card interview, the officer questions you together to confirm the marriage is real. Expect questions about how you met, your daily routine, your home, and your plans. Bring updated evidence showing the relationship is ongoing.

Marriage fraud is a federal crime carrying up to five years in prison, a fine of up to $250,000, or both.¹² The immigrant spouse would also be permanently barred from future immigration benefits.

You Have to Meet the Income Requirement

You must sign Form I-864, the Affidavit of Support, promising to keep your spouse financially supported above the federal poverty line. It’s a legally binding contract, and you must be at least 18 to sign it.¹¹

For 2026, a sponsor in the 48 contiguous states must show household income of at least $27,050 for a household of two. The floor is $33,813 in Alaska and $31,113 in Hawaii. Active-duty military petitioning for a spouse only needs to meet 100% of the poverty guideline instead of 125%.¹³ Each additional dependent raises the threshold.

If your income doesn’t reach the number, a joint sponsor can step in. A joint sponsor is any US citizen or lawful permanent resident, at least 18, living in the United States, who independently meets the threshold. They do not have to be related to you. You can have up to two joint sponsors, but each must qualify on their own income; you can’t combine incomes across sponsors.¹⁴

A Conditional Card If You Marry Recently

If your spouse’s green card is approved within two years of your wedding date, it’s a conditional card good for two years. If more than two years have passed by approval, it’s a standard ten-year card.

During the 90-day window before a conditional card expires, you and your spouse jointly file Form I-751 to remove the conditions.¹⁵ Miss the deadline and permanent resident status is automatically lost.¹⁶ If the marriage ends in divorce before conditions are removed, or the citizen spouse won’t join the filing, the conditional resident can file the I-751 alone with a request for a waiver of joint filing. Domestic abuse by the petitioning spouse is also a recognized basis for filing individually.

A Denial Can Lead to Removal Proceedings

This is the risk nobody should overlook. If an application is denied and your spouse is not lawfully present, USCIS will issue a Notice to Appear, the charging document that starts removal proceedings before an immigration judge.¹⁷ Filing an I-130 by itself gives no protection from removal. A pending I-485 offers procedural protection while it’s being processed, but that protection ends the moment it’s denied.

That is why the first filing has to be right. Weak bona fide evidence, unresolved inadmissibility issues, or an application filed for someone who wasn’t eligible in the first place can turn a marriage-based case into a deportation case.

What Happened to Keeping Families Together

In 2024, the Biden administration announced a parole-in-place program called Keeping Families Together, which would have let certain undocumented spouses of US citizens who entered without inspection adjust status without leaving the country. A federal court in Texas vacated the program in November 2024, and USCIS stopped accepting applications immediately.¹⁸ As of 2026, the program is not available. Spouses who entered without inspection remain in the consular processing and unlawful presence framework described above.

1
Office of the Law Revision Counsel. 8 USC 1151 – Worldwide Level of Immigration
2
U.S. Citizenship and Immigration Services. I-130, Petition for Alien Relative
3
U.S. Citizenship and Immigration Services. Instructions for Form I-130, Petition for Alien Relative
4
U.S. Citizenship and Immigration Services. G-1055 Fee Schedule
5
U.S. Citizenship and Immigration Services. Adjustment of Status
6
Office of the Law Revision Counsel. 8 USC 1255 – Adjustment of Status of Nonimmigrant to That of Person Admitted for Permanent Residence
7
Office of the Law Revision Counsel. 8 USC 1182 – Inadmissible Aliens
8
eCFR. Part 245 – Adjustment of Status to That of Person Admitted for Permanent Residence
9
U.S. Citizenship and Immigration Services. Provisional Unlawful Presence Waivers
10
U.S. Citizenship and Immigration Services. USCIS Policy Manual – Extreme Hardship Considerations and Factors
11
U.S. Citizenship and Immigration Services. USCIS Policy Manual, Volume 6, Part B, Chapter 6 – Spouses
12
Office of the Law Revision Counsel. 8 USC 1325 – Improper Entry by Alien
13
U.S. Citizenship and Immigration Services. I-864P, HHS Poverty Guidelines for Affidavit of Support
14
U.S. Citizenship and Immigration Services. Instructions for Form I-864, Affidavit of Support Under Section 213A of the INA
15
U.S. Citizenship and Immigration Services. Instructions for Form I-751, Petition to Remove Conditions on Residence
16
eCFR. Part 216 – Conditional Basis of Lawful Permanent Residence Status
17
U.S. Citizenship and Immigration Services. Issuance of Notices to Appear in Cases Involving Inadmissible and Deportable Aliens
18
U.S. Citizenship and Immigration Services. Keeping Families Together