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. Who Should Fill Out Form I-134 Affidavit of Support?Applicants for a B2 tourist visa should NOT submit the I-864 Affidavit of Support or any other official US document pertaining to their finances. Form I134 is used to document the personal finances of a sponsor who lives in the United States. CitizenPath provides an affordable service to help you quickly and accurately prepare Form I134, Declaration of Financial Support, for your situation. Note: Mistakes in completing the I-864 are a common reason for delays with an immigrant visa application. A letter of invitation or Affidavit of Support is not needed to apply for a nonimmigrant tourist visa. Visa application form. Each applicant must complete and sign a visa application, filling out every section. The person who is petitioning on behalf of the immigrant visitor fills out Form I-134.