Affidavit of Financial Support for International Students (F-1). Gov) and supporting.International students can use Form I-20 to apply for an F-1 visa to enter the US. Application Documents. We assist our clients in preparing and filing form I-864, Affidavit of Support, on their behalf or on behalf of their family member. In today's video we're going to fill out form i-864 the affidavit of support form together. It is one of the most confusing forms. 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. Fill Online, Printable, Fillable, Blank Affidavit Of Financial Support For International Students (California State University, Sacramento) Form. This tip sheet will help you complete Form I864, Affidavit of Support Under Section 864A of the INA. Detailed. The Affidavit of Support is a Contract between Sponsor and Household Member.