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.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. 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). Form I-864 is required for most family-based immigrants and some employment-based immigrants to show that they have adequate means of financial support. Individuals immigrating through most family-based, and some employment-based,1 visa petitions are required to submit an Affidavit of Support on. I followed your videos to apply for a green card for my mother in law and they accepted it right away without having to fix anything. After the appropriate form with documentation is complete, the petitioner should send it to the National Visa Center. What does the NVC do with the I-864?