Create a professional IOU (I Owe You) document with our free online template. This legally binding acknowledgment of debt clearly records the borrowed amount, the names of the borrower and lender, repayment terms and schedule, interest rate if applicable, and consequences of default. An IOU provides written proof of a personal loan or debt obligation, helping prevent disputes between parties. Suitable for personal loans between friends, family members, or business associates. Fill out the interactive form with guided fields, preview in real time, and download as PDF or Word. Includes electronic signature support under the ESIGN Act and UETA. No account required. Valid in all US states.