The Affidavit of Support, and Why a Sponsor's Income Matters

Most family-based green card cases include a document that gets less attention than it deserves: Form I-864, the Affidavit of Support. It is required in most cases where a U.S. citizen or lawful permanent resident is petitioning for a spouse, parent, child, or sibling. The purpose is straightforward on its face. The government wants proof that the immigrant will not become a public charge, meaning someone who depends on certain government benefits rather than on private support. But the way that gets proven, and what the sponsor is actually agreeing to, is where people run into trouble.

It Is a Contract, Not a Cover Letter

The Affidavit of Support is a legally enforceable contract between the sponsor and the U.S. government. By signing it, the sponsor agrees to maintain the immigrant at an income at least equal to a set percentage of the federal poverty guidelines, and that obligation does not end when the green card is approved. It continues until the immigrant becomes a U.S. citizen, can be credited with forty qualifying quarters of work, permanently leaves the United States, dies, or loses permanent resident status through removal proceedings. Divorce does not end the obligation on its own. This is one of the most misunderstood parts of the entire process, and it deserves to be understood before anyone signs.

The Income Requirement

The sponsor generally has to show income at or above 125 percent of the federal poverty guideline for their household size, which includes the sponsor, any dependents, and the immigrant being sponsored. That figure moves with household size and is updated by the government periodically, so we do not quote a specific dollar number here. What matters is the shape of the requirement: it is based on household size, and it has to be current at the time the case is filed.

If the petitioning sponsor's income does not clear the threshold on its own, there are still options. A joint sponsor, someone else who meets the income requirement and is willing to take on the same binding obligation, can file a separate I-864 alongside the petitioner. Significant assets can sometimes be used to make up a shortfall in income. Household income from other family members living with the sponsor can also be counted in certain cases, using a related form. None of these are automatic, and each one has its own documentation requirements that USCIS reviews closely.

• Federal tax returns, usually the most recent year, sometimes three years of transcripts
• Proof of current employment and income, such as pay statements or an employer letter
• Evidence of household size, including anyone already sponsored on a prior affidavit
• Documentation for a joint sponsor or household member, if one is being used

What Happens if Circumstances Change

Life does not stand still while an Affidavit of Support obligation is in effect, and sponsors sometimes assume that a change in circumstances, a job loss, a divorce, a falling out with the immigrant they sponsored, quietly ends the commitment. It generally does not. The obligation was made to the government, not to the immigrant personally, and it survives most of the situations that feel like they should end it. This is exactly why the decision to sign should be made with a clear understanding of what is actually being promised, not just a sense that it is a routine part of the petition.

For a joint sponsor in particular, the stakes are worth sitting with. A joint sponsor is often a relative or close family friend who is not the petitioner in the case at all, stepping in only because the petitioner's income falls short. That person takes on the same binding, long-term obligation as the petitioner would have, for someone they may have no ongoing relationship with once the case is resolved. It is a generous thing to do, and it deserves to be done with full information rather than as a favor signed quickly at someone's kitchen table.

Why Getting This Right the First Time Matters

A weak or incomplete Affidavit of Support is one of the more common reasons a case stalls at the review stage, and it is entirely avoidable with the right preparation. Because the sponsor is agreeing to something that outlasts the immigration case itself, it is worth understanding exactly what is being signed rather than treating it as another form in a stack. Ghoshal Law PLLC helps petitioners and sponsors work through the income requirements, gather the right documentation, and decide whether a joint sponsor is the right call before the case is filed. If you are preparing a family petition and want to get the affidavit right the first time, reach out for a consultation.