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 have a joint sponsor, they must also complete Form I864.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). In addition to this form, sponsors should also send a financial statement showing sufficient funds to cover the students tuition and living expenses. You, the sponsor (petitioner), and the joint sponsor must complete Form I-864. See tips for completing Form I-864. Sponsors of students planning to attend the University of Utah should complete the following form. A joint sponsor (also called co-sponsor) has the same liability under an Affidavit of Support as the primary sponsor. Sponsors of students planning to attend Utah Valley University should complete this form. In today's video we are going to be filling out form i 864 the affidavit of support form for the joint sponsor.