All prepayments shall first be applied to outstanding late fees, then to accrued interest and thereafter to the principal loan amount. A Promissory Note with Balloon Payments is a loan contract that enables a lender set loan terms with one or more larger payments at the end.Here's the information you'll need to have handy to complete your secured promissory note, installment with balloon final payment. Writing a promissory note should be tailored to your specifications of that particular loan. Check out a free preview of a promissory note at 12Law. The Texas Real Estate Lien Note is a oneway agreement in which the signer makes a promise to pay someone a specific sum of money at a specific time. It specifies the principal amount, annual interest rate, payment terms including monthly interest-only payments and a final balloon payment. 00 (this amount is called "principal"), plus interest, to the order of the Lender which is.