A loan request letter format is a formal document used to request financial assistance from a lending institution or individual. It typically includes the sender’s contact information, the date of writing, the recipient’s details, the subject line indicating the purpose of the letter, a formal salutation, an introduction outlining the purpose of the loan request and the sender’s financial situation, loan details specifying the type and amount of loan requested, financial information to support the request, proposed repayment plan, closing expressing appreciation and providing contact information, and any enclosures.