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. How to File an Affidavit of Support.Diversity Visa Lottery ("DV Lottery") winners do not need to file an I-864 Affidavit of Support in order to apply for permanent residence. The sponsor will need to file Form I-864P, which is used to determine the minimum income requirement needed to file Form I-864 (the Affidavit of Support). To access DS-260, you will need to enter your DV visa case number. A separate form is required for each visa applicant. In this guide, we will explain who needs to complete Form I864, when to file it, and how to fill out Form I864 stepbystep. Some sponsors temporarily reside abroad and intend to move to the US once a family member's immigrant visa is issued. For All Sponsors: Send a copy of your recent federal income tax return, including W-2s, or a statement explaining why you didn't file. Financial sponsors for green card applicants use Form I-864, Affidavit of Support, to remove the public charge grounds for inadmissibility.