Home > Personal > Personal Lending > Mortgage > Mortgage Resources > Glossary > Principal & Interest Principal & Interest November 9, 2021 The payment required to repay a mortgage in accordance with its terms. Sometimes referred to as “P&I”.You Might Also Like: Everyday MoneyDiscover the Power of Bank Five Nine’s Digital Banking Tools Everyday MoneyBeware of QR Code Fraud: What You Need to Know Everyday MoneyWinter Budgeting Tips: Simple Strategies to Stay Financially Cozy This Season Everyday MoneyUnderstanding and Maximizing Credit Card Rewards for Smart Financial Benefits Everyday MoneyProtecting Seniors from Financial Scams