Installment note From Wikipedia, the free encyclopedia An installment note[1] is a form of promissory note calling for payment of both principal and interest in specified amounts, or specified minimum amounts, at specific time intervals. This periodic reduction of principal amortizes the loan. References [1]Conrad, Shaun. "What is an Installment Note? - Definition | Meaning | Example". myaccountingcourse.com. Retrieved 23 June 2025. This finance-related article is a stub. You can help Wikipedia by adding missing information.vte Related Articles