Affidavit of Support Guide · Updated July 2026
Joint Sponsors for a Marriage Green Card
The most common fix when the spouse doing the sponsoring does not earn enough on their own.
Summary
A joint sponsor is a second person who promises the U.S. government they will financially support the immigrating spouse if needed. This is the most common fix when the spouse doing the sponsoring does not earn enough on their own. The joint sponsor signs their own copy of one form (Form I-864, the Affidavit of Support), has to be a U.S. citizen or green card holder living in the U.S., and does not need to be related to either spouse.
At a glance
| What does a joint sponsor do? | Signs their own Form I-864 (Affidavit of Support) and agrees to back the immigrating spouse financially. |
| When do you need one? | When the spouse doing the sponsoring earns below 125% of the federal poverty line (about $27,050/year for a household of two in 2026). |
| Who can be one? | Any U.S. citizen, U.S. national, or green card holder who is at least 18, lives in the U.S., and meets the income line on their own. No family relationship required. |
| Can incomes be added together? | No. The joint sponsor has to meet the income line by themselves. It does not stack on top of the sponsoring spouse's income. |
| Does it cost anything? | The I-864 has no USCIS filing fee. Couples filing from inside the U.S. pay nothing extra; couples filing from abroad pay a one-time $120 review fee to the National Visa Center. |
| Is it a real legal commitment? | Yes. The obligation can last years, and a divorce does not end it. |
Income figures are current as of 2026 per the HHS Federal Poverty Guidelines (effective March 1, 2026). Verify the current threshold at uscis.gov/i-864p before filing.
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What a Joint Sponsor Is, in Plain English
Every marriage green card case needs someone to promise, in writing, that the immigrating spouse will not have to rely on public benefits. That promise is made on Form I-864, called the Affidavit of Support. The spouse who filed the petition to start the case (the U.S. citizen or green card holder, sometimes called the “petitioner”) is always the first person who has to sign it.
To sign it, that spouse has to show income at or above a set line: 125% of the federal poverty guidelines for their household size. When their income is below that line, they are allowed to bring in a second signer who does meet it. That second signer is the joint sponsor.
A joint sponsor is not the same as someone who “sponsors” the green card in the sense of starting the case. Only a qualifying family member can file the petition (Form I-130) that opens a marriage case. A joint sponsor does something narrower and purely financial: they sign a second Affidavit of Support to cover the income requirement. Because the role is only financial, the rules on who can fill it are much looser. A friend, a parent, a sibling, or a coworker can all be joint sponsors as long as they qualify.
Using a joint sponsor is the ordinary, expected path when the income falls short. USCIS builds the option directly into the Form I-864 instructions, and it resolves the large majority of income-shortfall cases without anyone having to earn more or wait.
Why Couples Need a Joint Sponsor: The Income Requirement
The income line is 125% of the U.S. Department of Health and Human Services (HHS) poverty guidelines for the sponsor's household size. HHS updates those numbers every year, and USCIS starts using the new figures on a set date each spring. The current figures took effect March 1, 2026.
Here is the 2026 income line for the 48 contiguous states and D.C.:
| Household size | Minimum yearly income (125%) |
|---|---|
| 2 | $27,050 |
| 3 | $34,150 |
| 4 | $41,250 |
| 5 | $48,350 |
| 6 | $55,450 |
| Each additional person | Add $7,100 |
Alaska and Hawaii have higher lines. A couple in Alaska needs $33,813 for a household of two; in Hawaii, $31,113. Always check the current figures on the USCIS poverty-guidelines page before filing, since they change every year.
Active-duty military exception
A sponsor on active duty in the U.S. Armed Forces or Coast Guard who is sponsoring their own spouse or child only has to meet 100% of the poverty line, not 125%. For a household of two in 2026, that is $21,640. This lower line applies to the active-duty petitioner only. It never applies to a joint sponsor.
How household size is counted
Household size decides which row of the table applies, and people get it wrong often enough that it is worth slowing down on. For the spouse doing the sponsoring, the household usually includes both spouses, any children, anyone claimed as a dependent on the most recent tax return, and anyone they are already obligated to support from an earlier Affidavit of Support. A couple with no children is a household of two, which is why $27,050 is the number most marriage cases start from.
Who Can Be a Joint Sponsor
The Form I-864 instructions list four requirements. A joint sponsor has to be all of the following:
- 1A U.S. citizen, U.S. national, or lawful permanent resident (green card holder)
- 2At least 18 years old
- 3Living in the United States (this is what "domiciled in the U.S." means: their main home is here)
- 4Able to show income at or above 125% of the poverty line for their own household size, counting the immigrating spouse in that total
That is the whole list. Notably, a joint sponsor does not have to be related to the immigrating spouse or to the spouse who filed the petition. A green card holder can be a joint sponsor; they do not have to be a citizen. A close friend, a neighbor, an aunt, an adult child, a coworker: any of them can serve, as long as they meet those four points.
How Much Income the Joint Sponsor Needs (and Why It Does Not Combine)
This is the single most misunderstood part of joint sponsorship, so it is worth being exact.
A joint sponsor has to meet the income line entirely on their own. Their income is not added to the sponsoring spouse's income. USCIS looks at the joint sponsor's income by itself and asks one question: is it at or above 125% of the poverty line for the joint sponsor's household size? Per the Form I-864 instructions, a joint sponsor “must be able to meet the income requirements… without combining resources with the petitioning sponsor.”
The joint sponsor's household size includes the people they already support plus the immigrating spouse they are agreeing to back. So a joint sponsor who lives alone with no dependents has a household of two once they add the immigrating spouse, and needs $27,050 (2026). A joint sponsor who is married with two children of their own has a household of five once the immigrating spouse is added, and needs $48,350. Forgetting to count the immigrating spouse in that total is a common reason a joint sponsor who looked qualified gets a request for more documents.
A joint sponsor who is close to the line but not over it has one option to boost their number: they can count income from someone in their own household (a spouse, an adult child, a parent, or another qualifying relative living with them) if that person signs a companion form, Form I-864A. That is different from combining with the petitioner, which is never allowed.
Joint Sponsor vs. Household Member: Two Different Roles
People mix up the joint sponsor with the “household member,” because both are ways to bring in extra income. They work differently.
| Joint sponsor | Household member | |
|---|---|---|
| Form they sign | Their own separate Form I-864 | Form I-864A (a companion to someone else's I-864) |
| Whose income counts | Only theirs, and it has to clear the line alone | Theirs combines with the sponsor they are helping |
| Relationship required | None | Yes: generally a relative or tax dependent of the sponsor |
| Where they live | Anywhere in the U.S. | Usually the same home as the sponsor they are helping |
| Legal responsibility | Full and independent | Shared with the sponsor they signed alongside |
The short version: if the person who wants to help lives with the couple (or with a joint sponsor) and just needs to add their income to reach the line, they are a household member and sign Form I-864A. If the person meets the line entirely on their own and often lives somewhere else, they are a joint sponsor and sign their own Form I-864.
What the Joint Sponsor Files, and the Documents They Provide
A joint sponsor fills out a full, separate Form I-864, the same form the petitioner fills out. There is no shorter version available to them. USCIS offers a simplified form (Form I-864EZ) but only to a petitioner who meets the income line on their own salary, so a joint sponsor can never use it. The Form I-864 itself has no USCIS filing fee.
Alongside the signed form, the joint sponsor provides:
- Their most recent federal tax return, or an IRS tax transcript for the most recent year. A plain photocopy or a plain transcript is fine; USCIS does not need it certified. (If they include a return rather than a transcript, they add every W-2 and 1099 that goes with it.)
- Proof of U.S. citizenship, U.S. national status, or green card status (for example, a passport bio page, a birth certificate, a naturalization certificate, or copies of both sides of the green card).
- Proof of current income is optional but recommended: recent pay stubs, or a letter from their employer stating the salary.
A self-employed joint sponsor reports the total income from their tax return and includes the full return with the business schedule (Schedule C). Self-employment and other less-typical income can draw follow-up questions from USCIS, so thorough documentation matters more in those cases.
Whatever the joint sponsor provides, the petitioner still files their own Form I-864 too. A joint sponsor is added on top of the petitioner's affidavit, never in place of it. Two affidavits go into the packet.
How the Joint Sponsor Step Works: Filing From Inside the U.S. vs. From Abroad
Where the joint sponsor's paperwork goes depends on which path the couple is on.
If the immigrating spouse is already in the United States and adjusting status (the path called adjustment of status, or AOS), the joint sponsor's Form I-864 and documents go into the main application packet mailed or uploaded to USCIS with the green card application (Form I-485). There is no separate fee for the affidavit on this path.
If the immigrating spouse is abroad and going through consular processing (the path for a spouse outside the U.S., leading to an interview at a U.S. embassy or consulate), the affidavits are handled by the National Visa Center before the interview. Here there is one added cost: a $120 Affidavit of Support review fee, charged once per case no matter how many affidavits are filed. That fee is separate from the immigrant visa application fee of $325 per person.
Either way, the joint sponsor usually does not have to attend the interview. That said, whether anyone beyond the couple is asked to appear is up to the officer, and for marriage cases in 2026 the couple themselves should plan on an in-person interview.
What the Joint Sponsor Is Actually Signing Up For
A joint sponsor should understand the commitment before they sign, because it is real and it is long.
By signing, the joint sponsor accepts joint and several liability with the petitioner. In plain terms: the joint sponsor and the petitioner are each fully on the hook. If the immigrating spouse later collects certain means-tested public benefits, the agency that paid them (or the immigrant) can seek repayment from either signer, and can go after the joint sponsor for the full amount.
The obligation lasts until one of these happens:
- The immigrating spouse becomes a U.S. citizen
- They are credited with 40 qualifying quarters of work in the U.S. (roughly 10 years; work by a spouse can count toward this)
- They permanently leave the U.S. or otherwise lose green card status
- Either the immigrant or the sponsor dies
Two things surprise people most
First, a divorce does not end the obligation. If the couple splits up, the joint sponsor (and the petitioner) stay financially responsible under the affidavit until one of the events above happens. Second, the responsibility comes with a housekeeping duty: after the green card is approved, a joint sponsor has to tell USCIS about any change of address within 30 days, using Form I-865. Skipping it can bring a fine ranging from $250 to $5,000.
Common Mistakes to Avoid
Trying to add the two incomes together
The joint sponsor has to clear the line alone. A petitioner earning $18,000 and a joint sponsor earning $12,000 do not combine to $30,000; the joint sponsor at $12,000 simply does not qualify.
Forgetting to count the immigrating spouse in the joint sponsor's household
The immigrant is part of the joint sponsor's household size for this calculation, which is what pushes many joint sponsors up a row on the income table.
Assuming a green card holder cannot serve
Lawful permanent residents can be joint sponsors. The "must be a U.S. citizen" claim on some sites is too narrow.
Counting a household member's income without Form I-864A
If a joint sponsor wants to lean on their spouse's or relative's income, that person has to sign Form I-864A.
Using an old edition of the form
USCIS rejects outdated editions. Download the current Form I-864 straight from uscis.gov/i-864 (the current edition is dated 10/17/24).
What If You Cannot Find a Joint Sponsor
A joint sponsor is the most common fix, but it is not the only one. If the petitioner is close to the line, assets can cover the gap instead. Savings, stocks, bonds, and home equity can count, though not dollar for dollar. A U.S. citizen sponsoring a spouse needs assets worth three times the income shortfall; most other sponsors need five times the shortfall. So a U.S. citizen who is $5,000 short would need $15,000 in documented assets to close the gap.
In some adjustment-of-status cases, the immigrating spouse's own income can count too, if they are already working in the U.S. with permission and that income will continue. For a full walkthrough of every option, see the guide on what to do when the petitioner's income is too low. For a deep dive on the form itself, see the Form I-864 Affidavit of Support guide. If the finances still do not work and no joint sponsor is available, that is a good moment to talk to an immigration attorney about the specific situation.
How Green Card Genius Helps
Green Card Genius is self-help immigration software built for marriage green card cases, including cases that need a joint sponsor. It asks plain-language questions, fills in the USCIS forms from the answers (both the petitioner's Affidavit of Support and a joint sponsor's), and assembles the packet for you to review and file.
Green Card Genius
One-time flat fee of $99 (a fraction of typical attorney fees). Covers all required forms, including joint sponsor situations. Comes with the Denial Protection Guarantee: if USCIS denies the application, Green Card Genius refunds the $99 service fee. Government filing fees are paid directly to USCIS and are separate.
Green Card Genius is not a law firm and does not provide legal advice. Cases with real complexity (a criminal record, prior immigration violations, or no qualifying family member to file the petition) are worth reviewing with a licensed immigration attorney.
Frequently asked questions
Who can be a joint sponsor for a marriage green card?
Any U.S. citizen, U.S. national, or lawful permanent resident who is at least 18, lives in the United States, and meets 125% of the federal poverty line for their own household size (counting the immigrating spouse in that total). No family relationship is required. A friend, coworker, or distant relative all qualify equally.
Does the joint sponsor's income combine with the petitioner's?
No. The joint sponsor has to meet the income line entirely on their own. USCIS does not add the joint sponsor's income to the petitioner's. If the joint sponsor cannot clear the line alone, they can add income from someone in their own household who signs Form I-864A, but never from the petitioner.
What is the difference between a joint sponsor and a household member?
A joint sponsor signs their own separate Form I-864 and has to qualify on income alone; they can live anywhere in the U.S. A household member signs Form I-864A, combines their income with the sponsor they are helping, and generally has to live in that sponsor's home and be a relative or tax dependent.
Does a joint sponsor have to be related to me?
No. The joint sponsor role is purely financial, so there is no relationship requirement. Anyone who meets the citizenship-or-green-card, age, residence, and income requirements can serve, related or not.
Does the petitioner still file an Affidavit of Support if there is a joint sponsor?
Yes. The petitioner always files their own Form I-864, even when their income is below the line. The joint sponsor's affidavit is added on top of it. Two affidavits go into the packet.
How much does the Affidavit of Support cost?
Form I-864 has no USCIS filing fee. Couples adjusting status inside the U.S. pay nothing extra for it. Couples going through a U.S. embassy abroad pay a one-time $120 Affidavit of Support review fee to the National Visa Center, separate from the $325-per-person immigrant visa fee.
Can a green card holder be a joint sponsor?
Yes. A lawful permanent resident who is at least 18, lives in the U.S., and meets the income requirement can be a joint sponsor. They do not have to be a U.S. citizen.
How long is a joint sponsor financially responsible?
Until the immigrating spouse becomes a U.S. citizen, is credited with 40 qualifying quarters of work (about 10 years), permanently leaves the U.S. or loses green card status, or either person dies. A divorce between the couple does not end the joint sponsor's obligation.
Can there be more than one joint sponsor?
A case can have at most two joint sponsors, and a second one is only used when one joint sponsor takes some family members and another takes the rest. For a couple with a single immigrating spouse, one joint sponsor is all that is possible or needed.
Key takeaways
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A joint sponsor is the standard fix when the sponsoring spouse's income is below 125% of the federal poverty line (about $27,050 for a household of two in 2026).
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The joint sponsor signs their own Form I-864 and has to meet the income line alone; their income does not stack on the petitioner's.
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Any U.S. citizen or green card holder who is 18 or older, lives in the U.S., and meets the line can serve, related to the couple or not.
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The petitioner still files their own Affidavit of Support even when a joint sponsor is used. Two affidavits go into the packet.
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The I-864 has no USCIS filing fee; consular cases pay a one-time $120 review fee to the National Visa Center.
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The commitment is real and long: it survives divorce and lasts until citizenship or about 10 years of the immigrant's U.S. work.
This article is for educational purposes only and is not legal advice. Green Card Genius is self-help immigration software, not a law firm, and does not provide legal representation. Immigration law and USCIS policy change frequently. Income thresholds update annually each spring; information is current as of July 2026. Verify any fee, income floor, or eligibility rule against the relevant USCIS page before relying on it, and consult a licensed immigration attorney for advice on a specific case.
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