Form I-864 Affidavit of Support: The Complete Guide

Every family-based green card depends on a document that few applicants truly understand: Form I-864 Affidavit of Support. It is not mere bureaucratic formality — it is a binding federal contract between the American sponsor, the immigrant, and the United States government. Whoever signs takes on a financial obligation that can last a decade and does not dissolve with divorce.

This guide consolidates, for 2026, the complete mechanics of the I-864: who must file it, what minimum income is required, how to use assets to supplement insufficient income, how a joint sponsor works, what the domicile rule means for citizens living abroad, and how each section of the form must be completed. The goal is to equip both the petitioner and the immigrant so the process does not stall on an avoidable RFE or a rejection due to an outdated document.

What Form I-864 Is

The I-864 demonstrates to the U.S. government that the sponsored immigrant has sufficient financial support to avoid becoming a public charge — a condition that would render the application inadmissible under INA 212(a)(4). It is required in virtually all family-based green card applications and in some employment-based petitions where a close relative of the beneficiary owns 5% or more of the petitioning company.

By signing, the sponsor makes a legal commitment to maintain the immigrant at an income equal to or above 125% of the federal poverty guidelines until one of these events occurs: the immigrant becomes a U.S. citizen; accumulates 40 qualifying quarters of work credited by Social Security (approximately ten years); permanently abandons permanent resident status and leaves the United States; or dies. Divorce does not end the obligation. Green card-based marriages that end in separation leave the American ex-spouse legally exposed to enforcement actions for years.

Who Must File the I-864

The petitioner of Form I-130 is always required to file the I-864, regardless of income level. Even a millionaire must complete it and demonstrate capacity to provide support. In specific situations, other parties also sign the form:

A joint sponsor is used when the petitioner alone does not meet the 125% poverty guidelines threshold. This can be any U.S. citizen or lawful permanent resident — no family relationship to the immigrant is required — as long as they individually meet the income requirement. They assume full responsibility, not partial.

A substitute sponsor appears when the original petitioner died before the process was completed. They must be a relative of the immigrant (spouse, parent, child, sibling, parent-in-law, grandchild), reside in the United States, be at least 18 years old, and meet the income floor. They assume both the legal and financial obligations of the deceased petitioner.

Exempt from filing the I-864 are immigrants who have already accumulated 40 qualifying Social Security quarters, or minor children of U.S. citizens who automatically acquire citizenship under Section 320 of the INA as amended by the Child Citizenship Act of 2000.

2026 Poverty Guidelines: The Table That Defines the Application

The Department of Health and Human Services annually publishes the poverty guidelines that form the basis for the I-864. The tables below reflect the values in effect for 2026, applicable until the next update is published in January 2027.

Contiguous States (48 states and DC)

Alaska

Hawaii

For households with more than eight members, a fixed amount per additional person is added, as specified in USCIS Form I-864P. Active-duty military members petitioning for a spouse or child meet the requirement at 100% of the guideline, not 125%.

How to Count Household Size

Calculating household size is a frequent source of error. It includes the sponsor themselves, their spouse, all unmarried children under 21, dependents listed on the most recent Federal Income Tax Return, the sponsored immigrant, and any derivatives of the immigrant (spouse, children) who are also immigrating. It also includes immigrants sponsored under prior I-864s who are still within the financial obligation period.

When Income Is Not Enough: Assets and Combined Income

Sponsors whose income falls below the threshold have three legitimate paths to close the gap.

The first is to use assets. Savings accounts, real estate, stocks, bonds, and other valuable property can be converted to an income equivalent. The general rule requires that the net value of assets reach five times the difference between current income and the 125% threshold. For a spouse or adult child of a U.S. citizen, the ratio drops to three times. For orphaned children in international adoption, the asset need only equal the difference itself. Real estate is counted at market value minus outstanding mortgages; vehicles at market value minus outstanding loans.

The second path is to combine the income of household members through Form I-864A Contract Between Sponsor and Household Member. The member must be listed as a dependent on the most recent tax return or have lived with the sponsor in the preceding six months. Each household member signs their own I-864A.

The third is to count the income or assets of the sponsored immigrant themselves, provided that income will continue after entering the United States. Foreign assets are accepted if they are liquid, convertible to dollars within twelve months, and transferable to the United States.

U.S. Domicile: The Trap for Expatriate Petitioners

The sponsor must have a domicile in the United States. U.S. citizens living abroad frequently get stuck here. Domicile is not permanent physical residence — it is the demonstrable intent to return and establish oneself. Those living abroad must show that their stay is temporary and provide concrete evidence of re-entry plans: a lease or real estate purchase contract in the U.S., an American job offer, school enrollment for children, transfer of assets.

Certain categories of overseas employment automatically preserve U.S. domicile: temporary positions with U.S. government entities, DHS-recognized research institutions, American companies engaged in foreign commerce, public international organizations under treaty, U.S.-based religious entities, and missionaries sent by those entities.

Required Supporting Documents

Along with the signed form, the sponsor submits proof of status (U.S. passport, naturalization certificate, or green card), a copy of the most recent federal tax return or IRS transcript, W-2s and 1099s from the same year, and evidence of current employment and income. Submitting the three most recent returns is optional but recommended when recent income has increased significantly. Self-employed sponsors attach Schedule C, D, E, or F as applicable.

How to Complete Each Part of the Form

Part 1 identifies the reason for sponsorship: I-130 petitioner, I-140 petitioner with family relationship, joint sponsor, or substitute sponsor. Only one box is checked.

Part 2 collects the sponsor’s information, including the domicile question — a frequent source of error for citizens abroad. Part 3 identifies the principal immigrant. Part 4 lists the derivative beneficiaries being sponsored, always aligned with what is listed in the approved I-130. Part 5 determines household size, which is the basis for the minimum income calculation.

Part 6 presents employment, occupation, employer, and current annual income, as well as listing anyone else whose income is being combined. Part 7 is completed only if the sponsor relies on assets to meet the threshold. Parts 8 through 11 contain the binding contract, the sponsor’s signature, and fields for interpreter and preparer when applicable.

Costs and When to File

Those adjusting status inside the United States via I-485 pay no fee for the I-864 — it is filed together with the I-485. Those processing through a consulate via the NVC pay a $120 fee to the National Visa Center before the interview.

Timing also varies by pathway. In Adjustment of Status, the I-864 is filed simultaneously with the I-485, often as a concurrent filing with the I-130. In consular processing, the I-864 is submitted only after the I-130 is approved and the case is transferred to the NVC, which then requests the document through the CEAC portal.

Errors That Trigger an RFE

Three are the most common. First, an incorrect household size calculation — usually from forgetting to include the sponsored immigrant or derivatives. Second, use of an outdated version of the form; the I-864 must be the current edition published by USCIS at the time of submission. Third, failure to prove domicile when the sponsor lives abroad. Each one delays the case by months.

The I-864 does not expire once signed. Even if the immigrant’s interview is delayed by years, the commitment remains valid. It also does not change due to changed circumstances of the sponsor; job loss, divorce, or relocation do not revoke the obligation. A change of address, however, must be reported to USCIS via Form I-865 within thirty days, under penalty of fine.

Victoria Harper

Editor-in-Chief

Meet the author

Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.