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. This is a sample letter for F-1 and J-1 supporters, showing that they are providing monetary support to students.The sponsor (your wife) must file I864. Her income from her grad school should be more than enough for a family of 2. You will be required to submit a copy of the Affidavit of Support and bank letter or statement to the U.S. Embassy or Consulate with your visa application. Fill out the ; Declaration and Certification of Finances. Completing and signing Form I-864 makes you the sponsor. After the I-130 is approved, it is forwarded to the State Department's National Visa Center (NVC) for processing. I'm going on an F1 visa to study in the US with a US citizen as my sponsor. Do I fill out the I-134 form or I-864 form?