A Comprehensive Guide to the Green Card Affidavit of Support (Form I-864)

November 25, 2025

Waiting on a green card and wondering what Form I-864 actually does for your case? The Affidavit of Support can feel like a big hurdle, and that is fair, since it is a real contract with real duties.

At Wogwu Law, PLLC, Attorney Wogwu helps families across the U.S. with caring guidance, and our team draws on both legal training and personal immigration experiences. Her goal here is simple: give you a clear walk-through of Form I-864, who must file it, the income rules, and what documents you will need.

What is Form I-864, and Why is it Required?

Form I-864 is a binding contract between a sponsor and the U.S. government. By signing, the sponsor promises to support the immigrant if needed, so the immigrant is unlikely to rely on certain public benefits.

The core aim is to show that the immigrant has adequate financial support. USCIS and the Department of State use the affidavit to assess the public charge ground under INA 212(a)(4) and the contract rules in INA 213A, with regulations at 8 CFR 213a.

Most family-based green card cases need Form I-864. Some employment-based cases also need it when a qualifying relative filed the I-140 or owns at least 5 percent of the petitioning business.

Who Needs to Submit Form I-864?

The petitioner is usually the sponsor and must submit Form I-864 even if a joint sponsor will also sign. If several family members are immigrating under the same petition within six months, copies of the same I-864 are often used for them.

Immigrants Requiring Form I-864

Immediate relatives of U.S. citizens, including spouses, unmarried children under 21, and parents of U.S. citizens age 21 or older.
Family-based preference immigrants, such as adult children and siblings of U.S. citizens, and spouses and children of permanent residents.
K-1 fiancé(e)s and K-2 children who apply for adjustment in the U.S.
Certain employment-based immigrants, if a qualifying relative filed the I-140 or owns 5 percent or more of the petitioning company.

Some people do not need Form I-864. In those cases, they usually submit Form I-864W to claim the exemption.

Exceptions: When Form I-864 is NOT Required

Individuals with 40 qualifying quarters of work credited under the Social Security Act.
Children who will automatically become U.S. citizens under INA 320 upon admission as permanent residents.
Self-petitioning widows or widowers with an approved I-360.
Self-petitioning battered spouses or children with an approved I-360 under VAWA.
Note, even if exempt, Form I-864W is often required to document the exemption.

Who Can Be a Sponsor?

A sponsor must meet status, age, domicile, and financial ability requirements. The petitioner must still file an I-864 even if a joint sponsor will be used to meet the income requirements.

Sponsor Requirements

U.S. citizen, U.S. national, or lawful permanent resident.
At least 18 years old.
Domiciled in the United States, a territory, or a possession.
Able to show income or assets that meet the support rules.

Domicile trips people up, especially if the petitioner lives outside the U.S. Here is how USCIS looks at it.

Domicile Explained

Domicile means your principal home is in the U.S.. You plan to keep it for the near future, see 8 CFR 213a.1. Some sponsors abroad still qualify, such as those employed by the U.S. government, certain research institutions, U.S. firms in foreign trade, public international organizations, or qualifying religious groups, per 8 CFR 316.20.

Others can qualify by showing a temporary stay abroad with continuing U.S. ties. Items like U.S. voting records, tax filings, property ownership, bank accounts, or a permanent U.S. mailing address help. You can also show plans to reestablish domicile by the time the immigrant is admitted or adjusts status.

When a petitioner passes away after I-130 approval, a substitute sponsor might step in so the case can continue if USCIS allows it.

Substitute Sponsor

A substitute sponsor can sign if the original petitioner died after I-130 approval and before green card issuance. The substitute must be a qualifying relative, for example, a spouse, parent, in-law, sibling, child age 18 or older, son, daughter, son-in-law, daughter-in-law, brother-in-law, sister-in-law, grandparent, grandchild, or legal guardian.

They must also be a U.S. citizen, U.S. national, or permanent resident, be at least 18, and be domiciled in the U.S. Financial rules still apply.

Income Requirements for Form I-864

In most cases, the sponsor must show income of at least 125 percent of the Federal Poverty Guidelines for the household size. The household count includes the sponsor, dependents, immigrants being sponsored, and any prior I-864 obligations that still exist.

Active-duty members of the U.S. Armed Forces who sponsor a spouse or minor child use 100 percent of the guideline. Always check the current Form I-864P on the USCIS website for exact numbers.

What if the Sponsor’s Income is Not Enough?

If the sponsor’s income falls short, there are ways to close the gap. You can often use a mix of options to reach the required level.

Options if Income is Insufficient

Using a joint sponsor. A second sponsor who meets age, status, and domicile rules can accept full financial liability. A joint sponsor must qualify on their own household numbers, without combining income with the petitioner.

Using household member income with Form I-864A. Family or dependents living in the same home can sign Form I-864A to add their income. The intending immigrant’s income can count if it will continue from the same source after getting permanent residence, and if they live with the sponsor or are the sponsor’s spouse.

Counting assets. Savings, stocks, bonds, and property equity can help. The assets must be convertible to cash within one year. In most cases, the asset total must be five times the shortfall. If the immigrant is the spouse or child of a U.S. citizen, the multiplier is three. Certain orphans have a lower threshold.

Asset Multipliers for Using Assets on Form I-864
Relationship or Case Type	Asset Multiplier	Notes
Most cases	5 times the income shortfall	Applies to common family categories and many employment cases that require an I-864
Spouse or child of a U.S. citizen	3 times the income shortfall	A child must be at least 18 to count their own assets
Certain orphans who will acquire citizenship after admission	Equal to the income shortfall	See I-864 instructions and I-864P for details

Supporting Documents Required with Form I-864

Strong, clear evidence shortens review and helps avoid delay. Most sponsors include proof of status, income, and domicile.

Essential Documentation

Tax evidence, the most recent federal return with all schedules, W-2s, and 1099s. The prior two years can be added if helpful. If not required to file, include a short written explanation.
Proof of current income, recent pay stubs for 6 months, and, if available, a letter from the employer showing pay and role.
Proof of assets if used, evidence of ownership, value, and access, such as bank statements, brokerage statements, appraisals, or mortgage balances for equity.
Proof of status, a copy of a U.S. passport, birth certificate, certificate of naturalization, or green card.
Proof of domicile if the mailing address is abroad, such as a lease, deed, utility bills, tax filings, or a statement of plans to reestablish domicile.
Household member items for I-864A, proof of relationship and same address, plus their income evidence and proof of status.

Translations must be complete and include the translator’s certification. Keep copies of everything you submit.

Sponsor’s Responsibilities and Obligations

Signing Form I-864 creates a contract that can be enforced. Sponsors, joint sponsors, and I-864A household members can be held liable for support or reimbursement.

Sponsor Obligations

Provide financial support, if needed, so the sponsored immigrant’s income stays at or above 125 percent of the Federal Poverty Guidelines.
The duty usually ends when the immigrant becomes a U.S. citizen, is credited with 40 quarters of work, leaves or loses permanent resident status, or dies.
Divorce does not end the duty.
Government agencies can seek repayment for certain means-tested public benefits paid to the immigrant, and a sponsor can be sued for those costs.
Sponsors must file Form I-865 within 30 days after changing address. Fines can apply if this is missed.

USCIS and the State Department may verify income and assets with employers or agencies. Be accurate and complete, since false statements can bring penalties.

Need Help with Your Green Card Application? Contact Wogwu Law, PLLC

Form I-864 carries real weight, but you do not have to handle it alone. At Wogwu Law, PLLC, Attorney Wogwu brings compassionate support to immigrants nationwide, with a team that truly understands what families are going through. Call us with questions or to set up a consultation at 919-964-5472, or reach us through our website. Attorney Wogwu is ready to help you move forward with confidence and care.