Marrying an undocumented immigrant in the United States is legal, but it does not resolve their immigration status or shield them from deportation. Before anything changes, the couple has to go through a formal USCIS process that can take months or even years, and it comes with financial duties most people do not expect.
This article covers what happens when you marry an undocumented person, whether the marriage is valid, how the green card process works, what USCIS reviews, how your spouse’s entry history shapes the case, and what marriage fraud means for both of you legally.
Can an Undocumented Immigrant Legally Get Married in the United States?
Yes. Marriage is a civil right in the United States, and immigration status has no effect on it. States issue marriage licenses, and no state asks for proof of immigration status. Most states accept a foreign passport as a valid photo ID, so no Social Security number or federal document is needed.
What federal law does control is a separate issue: whether the marriage creates a path to legal status. A marriage can be fully valid under state law while the immigration side remains complex. These two things are not the same, and mixing them up is a very common mistake.
Documents Needed to Obtain a Marriage License
Most states ask for:
- A photo ID (a foreign passport is fine in most states)
- A birth certificate in some states
- A divorce decree if either person was married before
Is the Marriage Legally Valid If One Spouse Is Undocumented?
Yes, fully. A marriage done under state law is valid and is recognized by both the federal government and USCIS. Immigration law does not void the marriage. It only looks at whether the couple can get a green card through it and that is where things get more complex.
What Happens If You Marry an Illegal Immigrant?
Many people ask, “if you get married to an illegal immigrant what happens?” The answer is that marriage opens a door, but it does not automatically grant legal status or stop deportation. The undocumented spouse does not get legal status on the wedding day. There is no automatic fix. A separate legal process has to happen first, and it takes time.
Marriage Does Not Automatically Grant Legal Status
USCIS is clear: marrying a U.S. citizen makes someone eligible to apply for a green card, it does not give them one. The U.S. citizen must file Form I-130 to start the process toward a green card through marriage. Filing this form does not change the spouse’s current status at all. It just opens the review process, which takes months at the very least.
After the I-130 is approved, what comes next depends on how the undocumented spouse entered the U.S. That one detail affects almost everything.
Marriage Does Not Automatically Stop Deportation
A pending I-130 does not pause removal proceedings. A marriage does not cancel a deportation order. A judge can treat a pending petition as a good sign, but nothing stops on its own because of the marriage. In 2025 and 2026, ICE has made arrests at USCIS offices during booked appointments, so deportation for green card holders and people still in the process both carry real risk. If your spouse is in removal proceedings, contact an experienced green card lawyer or immigration attorney immediately. Do not count on marriage alone to fix the situation.
When Marriage Can Lead to a Green Card
Spouses of U.S. citizens are in the “immediate relative” group, which is the top level in family immigration. There is no visa backlog for this group. Here is how the process looks when things go smoothly:
| Step | What Happens |
|---|---|
| 1. File Form I-130 | U.S. citizen petitions for their spouse |
| 2. USCIS approves petition | Case moves forward |
| 3. Apply for green card | Via Form I-485 in the U.S. or consular processing abroad |
| 4. Attend USCIS interview | Both spouses go together |
| 5. Get conditional green card | Valid 2 years if marriage is under 2 years old at approval |
| 6. File Form I-751 | Removes conditions, gives a permanent 10-year green card |
Whether step 3 can happen inside the U.S. depends on how the spouse entered the country.
The Real Consequences of Marrying an Illegal Immigrant
Marrying an undocumented person is not a crime. But the process that follows has real legal duties and costs that catch many couples off guard. Knowing what is coming before you file saves time, money, and stress.
USCIS Scrutiny, Interviews, and Evidence Requirements
Every marriage-based green card case gets reviewed by USCIS for fraud. Both spouses must attend an in-person interview at a USCIS office. Officers ask detailed personal questions, how the couple met, where they live, daily habits, shared finances to confirm the marriage is real.
If an officer has doubts, they can run a Stokes interview, where each spouse is questioned on their own and the answers are compared. USCIS can also show up at the couple’s home without notice. If the paperwork looks thin, USCIS sends a Request for Evidence (RFE). Not answering it well usually leads to denial.
Strong proof of a bona fide marriage includes:
- Joint bank accounts and shared bills
- A shared lease or mortgage in both names
- Photos together over several years, not just the wedding
- Texts, emails, or letters between the couple
- Statements from friends or family who know the couple
- Joint tax returns
More evidence means a smoother review. Weak paperwork leads to delays, more requests, or denial.
Financial Sponsorship Responsibilities
To sponsor a spouse for a green card, the U.S. citizen must sign Form I-864, the Affidavit of Support. This is a legal contract, not just a form. By signing it, you agree to support your spouse if they cannot support themselves. Your income must be at least 125% of the Federal Poverty line for your household about $40,187 per year for a family of four in 2025.
Here is what many people miss: this duty does not end when you divorce. It stays active until your spouse becomes a U.S. citizen or works 40 quarters (about 10 years). If they use public benefits at that time, the government can bill you. Your spouse can also take you to court for support.
Processing Delays and Legal Costs
- Clean green card cases at most USCIS offices take several months to over a year right now. Cases with prior violations, a criminal record, or a border crossing without a visa take much longer.
- Plan for costs early. Filing fees, a medical exam (Form I-693), attorney fees, and waiver costs in harder cases can run from $3,000 to $10,000 or more.
Does the Way the Immigrant Entered the U.S. Affect the Case?
Yes and this is the detail that shapes the whole case. How your spouse entered the country decides which green card path they can take. Many couples only find this out after filing the wrong forms. Entered on a visa and overstayed: Your spouse may be able to apply for a green card without leaving the U.S. through adjustment of status. The whole process stays here. This is generally the easier path.
Entered without inspection (EWI): This means crossing the border without going through a legal entry point. In most cases, they cannot adjust status inside the U.S. They would need to leave for consular processing at a U.S. embassy abroad. The problem is that leaving after time spent without legal status can trigger a reentry bar.
Here is how the bars work:
- Time Without Legal Status — What Happens If They Leave
- 180 days to 1 year — 3-year bar from coming back
- 1 year or more — 10-year bar from coming back
- Reentry after the 1-year bar — Possible permanent bar
There is a waiver option. Form I-601A can be filed inside the U.S. before the spouse leaves for their consulate interview. It requires showing that the separation would cause real hardship for the U.S. citizen. In 2025 and 2026, this process runs about 18 to 36 months.
One more thing: DACA does not fix an EWI entry. DACA gives work permits and protection from removal, but it is not lawful immigration status. If your spouse crossed the border without going through inspection, DACA does not change that. The same bars and waiver process still apply.
The Most Serious Risk Couples Should Understand
For couples who married for real reasons, the process is hard but it can be done. The real danger is when a marriage exists mainly to get an immigration benefit not because of a genuine relationship. That is marriage fraud, and it is a federal crime.
Under INA § 275(c), anyone who enters a marriage to get around immigration law can face up to 5 years in federal prison and a fine of up to $250,000. Both the U.S. citizen and the undocumented spouse face these charges. It does not matter if only one of them knew the marriage was fake.
Under INA § 204(c), an immigrant found to have used a fake marriage is permanently barred from getting a green card through any future marriage. There is no waiver. It is a lifetime ban. On top of that, more charges can stack up, visa fraud, false statements, or harboring someone each with its own prison time. Even genuine couples face USCIS review, so building strong evidence from day one is important for everyone.
When Should You Speak With an Immigration Attorney?
Some couples with clean, simple cases manage on their own. But for most people marrying an undocumented spouse, there is at least one issue that needs legal help. Going in without an immigration attorney and making a mistake can cost years or lead to a permanent denial.
- Talk to an attorney early if any of these apply:
- Your spouse crossed the border without going through an entry point
- Your spouse has a prior removal or deportation order
- Your spouse spent more than 180 days in the U.S. without legal status
- Your spouse has any criminal record, even a small one
- USCIS sent an RFE
- A USCIS interview is coming up
- You are thinking about divorce while the green card is still pending
- A past application was denied
- Getting it right the first time costs far less than fixing it later.
Frequently Asked Questions
Can my spouse still be deported after we get married?
Yes. A marriage does not stop a removal order or pause deportation proceedings. An attorney can file for a stay of removal to hold the case while the petition is reviewed.
Will USCIS investigate our marriage?
Yes. Every marriage-based application goes through fraud review. Both spouses attend an interview, and USCIS can escalate to a Stokes interview or an unannounced home visit if they have doubts.
What is the biggest mistake couples make after marriage?
Filing without checking how the spouse entered the U.S. Adjustment of status is only available to spouses who entered legally. Filing Form I-485 for a spouse who entered without inspection causes serious problems.
What if I married an illegal immigrant and needed a divorce?
Divorce typically ends a pending green card case. If your spouse has a conditional green card, they must file Form I-751 with a waiver. Your I-864 duties survive the divorce and stay active for roughly 10 years.
Can I go to jail for marrying an immigrant in order to get them citizenship?
Yes. Under INA § 275(c), marriage fraud carries up to 5 years in prison and a $250,000 fine for both spouses, even if only one knew the marriage was fake.
