A joint sponsor is a second person who signs their own Form I-864 Affidavit of Support when the main sponsor’s income is not high enough for the sponsored immigrant’s green card. To qualify, the joint sponsor must be a U.S. citizen, U.S. national, or lawful permanent resident, at least 18 years old, living in the United States, and able to meet the income requirement on their own. The promise they sign is legally enforceable, and it can last for years.
The short version
A joint sponsor steps in when the petitioner’s income falls short, but the joint sponsor must meet the income test personally and takes on the same financial obligation as the petitioner. The petitioner still files their own Form I-864; a joint sponsor adds to it and never replaces it. The obligation does not end with a divorce or a change of heart.
Key Takeaways
- A joint sponsor must be a U.S. citizen, national, or permanent resident, age 18 or older, and domiciled in the United States, and must meet the income test in the federal regulations on their own.
- A joint sponsor does not have to be a relative, but they become jointly responsible for supporting the immigrant and for reimbursing certain public benefits.
- The promise ends only in limited situations, such as naturalization or 40 qualifying quarters of work, so think carefully before signing.
What Is a Joint Sponsor on Form I-864?
Most family-based green card cases require an Affidavit of Support on Form I-864. The law behind it is section 213A of the Immigration and Nationality Act, which requires the person who files the immigrant petition to promise that the immigrant will not become a public charge. If the petitioner’s household income and assets do not meet the required level, the regulations allow another person to sign a separate Form I-864 as a joint sponsor.
Think of it this way: the petitioner is the main sponsor, and the joint sponsor is a backup who shares the same promise. If you want the full picture of how the income test works for the petitioner, we explain it in our guide to green card income requirements for sponsors. For a broader look at the role itself, see what sponsorship means in immigration.
Who Qualifies to Be a Joint Sponsor?
The USCIS affidavit of support page and 8 CFR 213a.2 set the basic requirements. A joint sponsor must:
- Be a U.S. citizen, U.S. national, or lawful permanent resident.
- Be at least 18 years old.
- Be domiciled in the United States (generally, living here as a principal residence, or in a U.S. territory or possession).
- Be willing to sign a legally binding Form I-864 and accept the obligations that come with it.
- Meet the income requirement, which is 125 percent of the Federal Poverty Guidelines for the joint sponsor’s household size, based on the joint sponsor’s own income and assets.
Notice what is missing: a family relationship. A joint sponsor can be a friend, a coworker, a church member, or a relative who is not the petitioner. What matters is that the person is eligible, financially able, and fully understands the commitment.
How Does the Joint Sponsor Income Test Work?
The joint sponsor is evaluated separately. Their income is not added to the petitioner’s income to reach the required level; the joint sponsor has to clear the bar for their own household. The household size includes the joint sponsor, their dependents, any other people they have sponsored whose obligations are still active, and the immigrants being sponsored on this case.
The exact dollar amount changes each year when the Department of Health and Human Services updates the poverty numbers. Rather than quoting a figure that may be out of date by the time you read this, we point you to the source: the HHS poverty guidelines and USCIS’s Form I-864P, which USCIS uses to show the minimum income by household size. Always check the version in effect on the day the form is filed.
A joint sponsor typically supports the form with their most recent federal tax return and proof of their own status. The USCIS Form I-864 page notes that a joint sponsor must provide proof of U.S. citizenship, lawful permanent resident status, or U.S. national status. Our coverage of the public charge rule explains why officers look closely at this part of the file.
Can a Joint Sponsor Replace the Petitioner?
No. This is one of the most common misunderstandings. The person who files the immigrant petition must file their own Form I-864 even if their income is low or they have no income. A joint sponsor is an addition to the petitioner’s affidavit, not a substitute for it.
There is a narrow exception for a different role. If the petitioner dies after the petition is approved, a qualifying relative can ask to continue the case as a substitute sponsor under the statute. We walk through that situation in our article on what happens when a petitioner dies. A substitute sponsor is not the same thing as a joint sponsor.
What Is the Difference Between a Joint Sponsor and a Household Member?
Many families mix these up. A household member who adds their income to the petitioner’s does so on Form I-864A, a contract between the sponsor and the household member. The household member must live in the petitioner’s home (or be listed as a dependent) and generally must be related in the ways the form describes. A joint sponsor, by contrast, files a whole separate Form I-864, does not need to live with the petitioner, and is judged on their own household.
Choosing the wrong path can lead to a Request for Evidence or a denial. Which one fits your family depends on who lives where and who earns what, which is why we review those facts before anything is filed.
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What Exactly Is a Joint Sponsor Promising?
This is the part we want every prospective joint sponsor to read twice. By signing, you agree to the following, according to the USCIS description of the affidavit of support and the governing statute:
- Support at 125 percent of the poverty line. You agree to maintain the sponsored immigrant at an income of at least 125 percent of the Federal Poverty Guidelines, which in practice means you can be asked to make up the difference.
- Joint and several liability. You and the petitioner are each responsible for the full obligation. A government agency or the immigrant does not have to pursue the petitioner first.
- Reimbursement of public benefits. If the immigrant receives certain means-tested public benefits, the agency that paid them can seek reimbursement from the sponsors.
- Enforcement in court. The sponsored immigrant, and the government agencies involved, can bring a lawsuit to enforce the affidavit. A federal or state court can order payment.
- Address updates. Sponsors must tell USCIS when they move, using Form I-865, within the deadline stated in the statute.
Signing does not mean you must hand over money every month. It means that if the immigrant falls below the support threshold or receives qualifying benefits, you can be held to the promise. Many joint sponsors never pay a dollar, but the legal exposure is real, and it should be a conscious choice.
When Does a Joint Sponsor’s Obligation End?
Under the regulation and the statute, the obligation generally ends when the sponsored immigrant:
- Becomes a U.S. citizen.
- Has worked, or can be credited with, 40 qualifying quarters (about ten years) of work in the United States.
- Permanently leaves the United States after losing permanent resident status.
- Dies.
What does not end it is just as important. According to USCIS guidance, divorce does not terminate the obligation, and neither does a falling out between the sponsor and the immigrant. A joint sponsor who guaranteed a couple’s case stays on the hook even if the marriage ends. We have seen families overlook this, so we raise it early in every conversation.
How Do You Choose a Joint Sponsor?
If you are the petitioner and need a joint sponsor, start with these questions:
- Does this person clearly meet the status, age, and residence requirements?
- Is their income, based on their latest tax return, comfortably above the threshold for their own household size?
- Do they understand that the promise is binding for years and that it survives divorce?
- Will they be reachable and willing to provide tax documents and sign on time?
For marriage cases, our step-by-step marriage green card guide shows where the affidavit of support fits in the larger process. If you are the one being asked to serve as a joint sponsor, please ask the petitioner for the full case picture before you sign anything.
Frequently Asked Questions
Can a joint sponsor be someone who lives outside the United States?
Generally no. The regulations require a joint sponsor to be domiciled in the United States. If the person lives abroad, talk with an attorney about whether any exception applies before relying on them.
Can I use more than one joint sponsor?
The form instructions address situations with more than one sponsor, but each sponsor is judged on their own household and income. Whether that approach makes sense depends on your facts, so review it with an attorney instead of guessing.
Does a joint sponsor have to be related to the immigrant?
No. A joint sponsor can be a friend or any eligible person willing to sign. A relative is not required, although many families choose someone they trust deeply because of the legal responsibility involved.
Can a joint sponsor back out after the form is filed?
The affidavit is a legally enforceable contract, and a sponsor cannot simply withdraw because they changed their mind. The obligation ends only in the situations the law describes. If you have concerns before filing, raise them before the form is signed.
How We Can Help
Choosing the right sponsor, and preparing a Form I-864 that holds up, is where we spend much of our time with families. We look at who the petitioner is, who can step in as a joint sponsor, and what each person is promising, so there are no surprises later. Our founding attorney Denisse Ilabaca is Board Certified in Immigration and Nationality Law by The Florida Bar, a distinction held by fewer than two percent of Florida attorneys.
If you are not sure whether you need a joint sponsor, or whether someone is eligible to serve as one, call us at (407) 917-2087 or start a pre-evaluation on our contact page. We will review the facts to see whether we can help.
This article is for general information and is not legal advice. Reading it does not create an attorney-client relationship with Ilabaca Law, PLLC. Immigration law changes often, and every case depends on its own facts. Please speak with a licensed attorney about your situation.