Loan letters​​ The letter should be dated no more than six months before the date you submit your visa application. A sample letter that meets the UKBA's student visa requirements.All UK schools should use this sample to prepare documentation letters for US students. Read the guidance on finances for student applications for more information about the money you need and how to prove it. The letter must be on official bank stationery. The letter must confirm: • your name (you cannot use a loan letter in a parent's name). Example Loan Letter to be used in support of a Student Visa application. Public.