Form I-864 Guide: Affidavit of Support Requirements, Income, and Sponsors
This guide explains who must file Form I-864, how household size and income are calculated, and what options exist if income is not high enough.
What is Form I-864?
Form I-864, Affidavit of Support, is a legally binding contract between a sponsor and the U.S. government. By signing it, the sponsor promises to financially support the intending immigrant at a minimum income level.
It is one of the most important documents in a family-based green card case. It proves that a U.S. sponsor has the financial ability to support an immigrant and prevent reliance on public benefits.
Legally, it helps the green card beneficiary overcome the public charge ground of inadmissibility.
Who Needs to File Form I-864 (and who does not)
In practice, almost all family-based green card applicants require Form I-864. This form is the financial backbone of family immigration and is required in the vast majority of cases. In rare cases, employment-based applicants require an Affidavit of Support also.
Categories That Must File
At the time of applying for a green card, the following immigrants are generally required to submit a Form I-864 completed by the sponsor:
- All immediate relatives of U.S. citizens (spouses, parents, and unmarried children under 21 years of age);
- All family-based preference immigrants (sons and daughters of U.S. citizens; spouses and unmarried sons and daughters of lawful permanent residents; and brothers and sisters of U.S. citizens); and
- Employment-based preference immigrants in cases only when the petitioner is a relative of the immigrant or the relative has a significant ownership interest (5% or more) in the entity that filed the petition.
Form I-864 Filing Exceptions
Form I-864 is not required only in specific, limited situations. These fall into two broad categories:
- Public Charge ExemptionsIf the immigrant is exempt from the public charge requirement, Form I-864 is not required. These exemptions are narrow and apply to specific humanitarian or special immigration categories. See the public charge exemptions →
- Statuatory ExemptionsSome applicants qualify for a direct exemption from the Affidavit of Support requirement, such as:
- Applicants who already earned or can be credited with 40 qualifying quarters of work in the United States
- Certain children who automatically become U.S. citizens
- Other narrowly defined categories listed in immigration regulations
Make it easy and file correctly: CitizenPath walks you through each question, checks for errors, and produces ready-to-file forms plus tailored instructions. It's free to try: Affidavit of Support Package →
Types of Sponsors: Primary, Joint, and Household Members
Choosing the correct type of sponsor is essential when completing Form I-864. Every case has a primary sponsor, but some situations also require a joint sponsor or a household member to help meet the income requirements. Understanding which sponsor role applies ensures the right forms are used, income is counted correctly, and the affidavit meets USCIS requirements without delays.
Primary Sponsor
The primary sponsor is the petitioner (person who filed Form I-130 or I-129F). This sponsor must file Form I-864, even if income is zero or insufficient. If you want to see if your income is sufficient to sponsor before getting started, you can check your qualifications with our free Visa Sponsor Income Calculator →
Joint Sponsor
A joint sponsor may help when the primary sponsor does not meet income requirements. A joint sponsor:
- Files a separate Form I-864
- Must independently meet income or asset requirements
- Uses their own household size, not the petitioner’s
Learn more about being a joint sponsor on Form I-864 →
Household Member
A household member is a closely related relative who pools their income with yours to support the household. Typically, the household member participates by including a supplemental Form I-864A. This is common when spouses live together or when income is pooled within one household. Learn more about contributing as a household member on Form I-864 →
Household Size: Common Source of I-864 Mistakes
Household size is not simply everyone living at the same address. It directly affects the income threshold and must be calculated carefully. Generally, household size includes:
- The sponsor
- The sponsor’s spouse
- Dependent children claimed on taxes
- Any immigrants being sponsored
Make it easy and file correctly: CitizenPath walks you through each question, helps you calculate household size and household income, and produces ready-to-file forms plus tailored instructions. It's free to try: Affidavit of Support Package →
I-864 Income Requirements and Poverty Guidelines
Most sponsors must show income of at least 125% of the federal poverty guidelines. Active-duty military members sponsoring a spouse or child may qualify at 100%. Take note of important distinctions:
- USCIS evaluates current income, not just past tax returns
- Tax transcripts are used to verify income history
- Employment changes may require additional proof
To see if income qualifies, sponsors can use CitizenPath’s free Visa Sponsor Income Calculator before preparing the affidavit.
Using Assets When Income Is Not Enough
When income falls short, assets may be used to cover the difference. Assets can include:
- Savings and checking accounts
- Stocks and bonds
- Property equity
Generally, assets must equal three to five times the income shortfall. What's more, documenting assets on Form I-864 can be problematic. Avoid using assets to qualify if you can meet the income threshold. Assets are frequently misunderstood, and insufficient documentation will trigger delays. Learn more about using assets on Form I-864 →
Evidence to Submit with Form I-864
The documents you submit with Form I-864 depend on several factors, including the sponsor's income history, income type and use of household members. In general, you should expect to submit:
- Federal tax return or IRS transcript
- Proof of current employment or income
- Asset documentation, if applicable
- Separate evidence for joint sponsors
Most people who receive an RFE related to Form I-864 failed to sufficiently document their income. Learn more about which documents to submit with the I-864 Affidavit of Support →
For the most accurate list of documents, try CitizenPath’s Affidavit of Support Package. Our online service walks you through Form I-864 and produces a customized checklist tailored to your situation, ensuring you send only what USCIS requires.
Domicile Requirement for I-864 Sponsors
Sponsors must be domiciled in the United States. U.S. domicile means the United States is your primary, permanent home and the place where you intend to live for the foreseeable future. For consular cases, sponsors living abroad may need to prove intent to reestablish domicile before the immigrant enters the country.
This requirement is frequently overlooked and can delay visa issuance. A sponsor may file Form I-864 while living abroad if they can show they have reestablished U.S. domicile or clearly intend to do so. This usually requires evidence of plans to live permanently in the United States, such as a job offer, housing arrangements, or other concrete steps to return. Learn more about meeting the requirement to reestablish U.S. domicile →
Which Affidavit of Support Form to Use
| Form | Purpose | Typical use |
|---|---|---|
| Form I-864 | Main affidavit of support | Most family-based cases |
| Form I-864EZ | Simplified affidavit | Single sponsor, straightforward income |
| Form I-864A | Household member contract | Combining household income |
| Form I-864W | Exemption request | Limited exempt categories |
Common I-864 Mistakes & RFEs
Many RFEs cite vague language such as “Form I-864 not properly completed.” Common issues include:
- Incorrect household size
- Wrong sponsor type selected
- Missing supplemental forms
- Insufficient income or asset evidence
- Inconsistent income claims
Overwhelmingly, Form I-864 is the leading cause of RFEs related to green card applications. Filers routinely submit problematic forms that delay green card processing or result in a denial. For more information, review The Most Common Reason for an I-485 RFE and How to Avoid It →
CitizenPath checks your affidavit to identify mistakes, omissions and inconsistencies. This optimizes your chances at smooth processing and a quick approval. Learn more about our Affidavit of Support Package →
I-864 Frequently Asked Questions
How CitizenPath Helps You File I-864 Correctly
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- Step-by-step I-864 preparation
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