Use the fields to narrow your search and select the "Search for documents" button to see your results. You can use a legally binding and easy to fill out Loan Agreement, or a Promissory Note, to capture the details of your loan.To complete the application, please place your cursor in the field you wish to complete, enter your information then tab to the next field. Apply for an SBA Loan today: Start an SBA Loan Application with Zions Bank and learn what information you will need to have ready when you apply. An IOU ( I Owe You ) is a legal document that sets out the details of a loan made between two people, a borrower, and a lender. Celtic Bank is a leader in SBA Loans and commercial financing. You must be located in a declared disaster area and meet other eligibility criteria depending on the type of loan. How to use an SBA disaster loan. Investment banks; Large corporations; Equity crowdfunding. Equity financing can be complex.