There are several types of Affidavit of Support forms (I-864, I-864EZ, I-864W, and I-864A). 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.If you are coming to the United States on a temporary visa, you may need to prove financial support. A sponsor can file the I-134 form. 864 Affidavit of support How to fill out the Form 864 immigration Tips US mmigration with Attorney Jacob Sapochnick 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. In this guide, we will explain who needs to complete Form I864, when to file it, and how to fill out Form I864 stepbystep. We have compiled a Pre-Arrival Guide for your use as you make your preparations for your arrival to Moody Bible Institute. What information do I need to provide for the child support enforcement agency (CSEA) to complete the administrative review? Ask the parents to complete paternity related forms if paternity has not been established for the child(ren).