A Bank Proposal Letter for Business Loan is a formal document that outlines the financial request of a business looking to acquire funding from a bank or other financial institution. It should provide an overview of the business, highlight its financial goals and aspirations, and explain why additional funds are needed. Additionally, the letter should include details about how the money will be used and what repayment plan has been established. By presenting this information in an organized and persuasive manner, businesses can increase their chances of being approved for a loan.