If you are coming to the United States on a temporary visa, you may need to prove financial support. A sponsor can file the I-134 form.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. This article will provide information to assist you in filling out Form I134 to help foreign visitors applying for a tourist or other nonimmigrant visa. A Form I134 affidavit of support serves as a visa applicant's evidence of sponsorship, or evidence that the applicant has 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. Access tens of millions of documents in PDF, TXT, Microsoft Word and PowerPoint formats with a free trial. Access Google Drive with a Google account (for personal use) or Google Workspace account (for business use). This form is one of the immigration forms that can be presented as proof of financial capacity at the visa interview. Submit a completed Affidavit of Support form.