Form I-864, the Affidavit of Support, is a legally binding contract in which a sponsor promises to financially support a family member immigrating to the United States, and to reimburse the government for certain benefits the immigrant might otherwise receive. It is required in most family-based green card cases, and once signed, it is not easily undone. The sponsor must show income (or, in some cases, assets) at a level tied to the current Federal Poverty Guidelines, and the obligation can last for many years - it does not end just because a marriage ends.
This article explains the framework: who has to sign it, how the income test works, what a joint sponsor does, and when the obligation actually terminates. Because the exact dollar thresholds change every year and the form itself is periodically updated, always check the current version and numbers directly with U.S. Citizenship and Immigration Services (USCIS) at uscis.gov rather than relying on a number you saw elsewhere.
What Form I-864 actually is
When a U.S. citizen or lawful permanent resident petitions for certain relatives to immigrate - most commonly a spouse, parent, child, or sibling - federal law generally requires the petitioner (or sometimes a substitute sponsor) to sign an Affidavit of Support. By signing, the sponsor agrees to:
Support the sponsored immigrant at an income level of at least 125% of the Federal Poverty Guidelines for the sponsor's household size (100% if the sponsor is an active-duty member of the U.S. Armed Forces sponsoring a spouse or minor child).
Reimburse any federal, state, or local agency that provides the immigrant with certain means-tested public benefits, if that ever happens.
Notify USCIS of any change of address until the obligation ends.
This is not a symbolic promise. Courts have treated Form I-864 as an enforceable contract. Both the sponsored immigrant and government agencies that paid out covered benefits can sue the sponsor to collect. Some sponsors have been ordered to pay support even years after a divorce or estrangement, because the contract does not depend on the marriage or relationship continuing.
The income test: 125% of the Federal Poverty Guidelines
The core requirement is financial: the sponsor must demonstrate income at or above 125% of the Federal Poverty Guidelines (100% if sponsoring an active-duty service member's own spouse or minor child) for a household of the relevant size. "Household size" typically includes the sponsor, their dependents, anyone else counted on their tax return, and the immigrant(s) being sponsored.
The actual dollar figures change periodically and vary by household size and, in some cases, by state (Alaska and Hawaii have different figures). USCIS publishes the current table as Form I-864P, Poverty Guidelines, on uscis.gov. Do not use a number from a prior year, a general web search result, or something you remember - always pull the current I-864P chart in effect on the date the affidavit is filed.
If the sponsor's income alone does not meet the threshold, there are a few possible fixes:
Significant assets. Cash, property, or other assets that can be readily converted to cash within a year may sometimes be used to make up a shortfall, generally at a multiple of the gap (the required multiple can differ depending on the immigrant's relationship to the sponsor).
Household member income. A relative or dependent living with the sponsor may be able to contribute income by signing a separate contract (Form I-864A) agreeing to make that income available to support the immigrant.
A joint sponsor. A separate, additional sponsor can sign their own Form I-864 for the same immigrant.
Joint sponsors: a separate, full promise - not a combined one
A joint sponsor is a U.S. citizen or lawful permanent resident, at least 18 years old and domiciled in the United States, who is willing to accept the same binding financial responsibility as the primary sponsor. A few points matter here and are frequently misunderstood:
The joint sponsor must independently meet the 125% income threshold based on their own household size - the primary sponsor's income and the joint sponsor's income generally cannot be added together to reach the total.
Up to two joint sponsors can be used only when there are multiple sponsored immigrants who cannot all be covered by one joint sponsor's household size limits; otherwise, one joint sponsor covers the case.
The joint sponsor takes on the same binding, long-term legal obligation as the primary petitioning sponsor - it is not a lesser or temporary commitment. Anyone asked to serve as a joint sponsor should understand this fully before agreeing.
Because the joint sponsor's exposure is real, this is not a favor to agree to lightly. Anyone considering it should read the current Form I-864 instructions in full and consider speaking with a qualified immigration attorney first.
How long the obligation lasts - and what actually ends it
This is the part people misunderstand most. The sponsor's duty does not end just because:
The couple divorces
The relationship or household breaks up
The immigrant becomes financially independent
A certain number of years pass, on its own
Instead, the obligation continues until one of these specific events occurs:
The sponsored immigrant becomes a U.S. citizen (through naturalization).
The immigrant is credited with 40 qualifying quarters of work under Social Security Administration rules - generally about 10 years of work history, which can include quarters worked by a spouse during the marriage or by a parent while the immigrant was under 18.
The immigrant permanently departs the United States and gives up lawful permanent resident status.
The sponsor or the sponsored immigrant dies.
Until one of these happens, the sponsor remains financially answerable, including for reimbursing agencies for certain means-tested public benefits the immigrant received and for support the immigrant may seek directly through a lawsuit.
Where the affidavit fits into "public charge" review
A properly completed Form I-864 is generally treated as a strong factor toward showing an immigrant is not likely to become a "public charge" - a separate ground of inadmissibility that officers consider under the totality of the circumstances. However, the standard for what counts, and how it's weighed, is a policy area that has shifted between administrations and can change again. Do not assume the rule you read about a year or two ago is still the current one - check the current policy through USCIS's Policy Manual or the Affidavit of Support pages at uscis.gov before relying on it.
What to do
Confirm which form applies. Most cases use Form I-864; a simplified Form I-864EZ is available in some circumstances. In addition, certain immigrants are exempt from the affidavit requirement altogether (for example, some who have already earned or can be credited with 40 qualifying quarters of work, and certain self-petitioners). How an exemption is claimed has changed over time - it is generally handled as part of the immigrant visa or adjustment-of-status application rather than through a stand-alone form - so confirm the correct version and the current exemption procedure for your case on uscis.gov.
Pull the current income chart. Get the current Form I-864P before filing - do not estimate.
Gather proof of income - typically recent federal tax returns, W-2s or 1099s, and current pay statements or an employer letter, per the current form instructions.
If income falls short, line up a joint sponsor or household member early - this takes time and requires their own tax and income documents.
Read the whole form before signing - it is a binding contract with long-term consequences.
Keep the government notified. Sponsors must report address changes to USCIS while the obligation is active.
When in doubt, get help. Because the financial and immigration consequences are serious and long-lasting, consult a qualified immigration attorney or a representative accredited by the Department of Justice's Office of Legal Access Programs.
Beware of notario fraud. In many countries "notario público" implies a licensed attorney, but in the United States a notary public is not authorized to give immigration legal advice. Only a licensed attorney or a DOJ-accredited representative can properly advise you on the affidavit of support and its consequences. Verify credentials before paying anyone for immigration help, and report suspected fraud to USCIS.
This article is general information, not legal advice, and does not create an attorney-client relationship. For guidance on your specific situation, consult a qualified immigration attorney or a DOJ-accredited representative.
Frequently asked questions
Does Form I-864 expire, or does it end automatically after a few years?
It does not simply expire on a timer. The support obligation continues until one of a specific set of events happens: the sponsored immigrant becomes a U.S. citizen, is credited with 40 qualifying quarters of work (about 10 years) under Social Security rules, permanently departs the United States and gives up permanent resident status, or either the sponsor or the immigrant dies. Simply living in the U.S. for a certain number of years, without one of these events, does not end it.
If we get divorced, does my ex still need my financial support under the affidavit?
Divorce does not end the sponsor's obligation. Because Form I-864 is a contract with the U.S. government, not a marital arrangement, it survives divorce and continues until one of the qualifying end events described above occurs.
What happens if my income alone does not meet the 125% threshold?
You may add a joint sponsor - a U.S. citizen or lawful permanent resident who independently meets the income requirement for their own household size and signs a separate Form I-864 for the same immigrant. You generally cannot combine your income with the joint sponsor's income to reach the threshold together; the joint sponsor must qualify on their own. Household members living with the primary sponsor may also be able to contribute income under a related form, and significant assets can sometimes substitute for a shortfall in income.
Can the immigrant or the government actually go after a sponsor for money?
Yes. Form I-864 is an enforceable contract. The sponsored immigrant can sue the sponsor for support, and federal, state, or local agencies that provide certain means-tested public benefits to the immigrant can seek reimbursement from the sponsor. This is one reason the form should never be signed casually.
Where do I find the current income number I need to meet?
Do not rely on a number you saw somewhere else or remember from a prior year. USCIS publishes the current Federal Poverty Guidelines used for this form as Form I-864P, updated periodically, and it is available on uscis.gov. Always check the version in effect when you file.
This article is general legal information, not legal advice, and may not reflect the most current law or the law in your jurisdiction. Laws vary by state and change over time. For advice about your specific situation, consult a licensed attorney.
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