Most American universities require applicants to submit a form called proof of property or affidavit of financial aid. This form must be filled in by the applicant's parents or guarantor, and attached with a certificate issued by the bank or lawyer. You need an extra copy of this document when you get a visa. Schools need to know that applicants have the ability to pay for at least the first year, although some schools may require proof of income during the whole study period. If you intend to apply for a grant from the school, please obtain a grant form and indicate the amount of grant you need. Don't wait until you are admitted to the school to ask for financial aid, it's too late. Please note that the school will issue I-20 and other relevant documents for the visa only after the applicant proves his income source.

The asset certificates issued by studying in the United States can be roughly divided into capital certificates, such as bank deposit certificates, stocks, funds and bonds. Proof of property, such as real estate license, driving license, etc. Among them, the bank deposit certificate is the primary condition of the ability to pay, and other certificates are generally used as an auxiliary explanation of the family's economic ability. Whether the preparation of capital certificate is sufficient directly affects the result of visa application.