Letter of request format for Loan Formal request letter template by Expert Writer - August 16, 2017February 7, 20200 Letter of request for loan or loan request letter is formal letter written by a client to his bank in which he/she conveys requesting for loan. Since there are different types of loans bank offers, client has to specify in the letter for which loan request is made for. In the letter of request format for loan application you may find below we have made a layout of the request letter you can submit to your bank for loan related inquiries. When writing this request letter to a bank you have to bear in mind to include following details: 1) Relationship you have with the bank, including type of the account; 2) Rationale for the loan request 3) Amount needed, preferably with the draft