SBA loan forms should be obtained from your lender. With an SBA loan, the bank is applying on your behalf for the loan guarantee from the SBA. In order to apply for an SBA loan, you must have found a lender that is interested working with you on your project. Some SBA loan programs use bank forms while others use SBA forms. Therefore, you should not complete SBA loan forms until your lender instructs you to do so.
(SBA forms are available online at www.sba.gov)