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. 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.A Form I134 affidavit of support serves as a visa applicant's evidence of sponsorship, or evidence that the applicant has financial support. Learn about the I-134 affidavit of support form, its requirements, and how to complete it. Ensure your visa application process is smooth with us. For short-term visits to the United States (for tourism, business, education, and more), you can go directly to the online application (form DS-160). Generally, an I134 Affidavit of Support for especially B2 visitors is not needed. Gather the following documents:. The person who is petitioning on behalf of the immigrant visitor fills out Form I-134. What documents, photos and information you need to apply for your visa.