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. The purpose of the Affidavit is to assist consular officers in determining whether a visa applicant will have adequate means of financial support in the US.Learn how to complete form I864EZ, the simplified affidavit of support form for immigration. Form I864, Affidavit of Support, needs to be filed DHS if you are a U.S. citizen or LPR planning to sponsor a spouse or family member. Download form I-864 from the USCIS website, fill it out precisely and send it in with the necessary financial documentation to get an affidavit of support. In this guide, we will explain who needs to complete Form I864, when to file it, and how to fill out Form I864 stepbystep. They are also used to determine an appropriate amount of spousal support. The Office of Child Support Services is exempt from filing financial affidavits. You are required to make to the Court, under oath, a FULL DISCLOSURE of your income, net worth and financial condition on this form. The Office of Child Support Services is exempt from filing financial affidavits.