Use this form to show they have adequate means of financial support and are not likely to rely on the US government for financial support. Completing and signing Form I-864 makes you the sponsor.An affidavit of support form must be submitted together with supporting documents which establishes the income source and income amount listed on the form. In this guide, we will explain who needs to complete Form I864, when to file it, and how to fill out Form I864 stepbystep. 864 Affidavit of support How to fill out the Form 864 immigration Tips US mmigration with Attorney Jacob Sapochnick All F and M students that study in the United States need a Form I-20, "Certificate of Eligibility for Nonimmigrant Student Status. National Visa application form, completely and clearly filled out, to be signed in the presence of a Consular officer. Applicants will be required to upload completed ISP forms Out of State Affidavit and Employment Requirement Certification. If you're worried you might have compromised your Chase account, please contact us immediately.