An open loan—often referred to as an open-end credit agreement—is a flexible financial arrangement where a borrower can repeatedly borrow, repay, and re-borrow funds up to an approved credit limit without needing to reapply for a new loan each time. Common examples of open loans include credit cards, home equity lines of credit (HELOCs), and personal revolving lines of credit. Unlike traditional closed-end installment loans that feature fixed monthly payments and a set maturity termination date, open loans calculate interest dynamically based on the outstanding daily balance. Maintaining healthy management of open-end credit lines is crucial, as fluctuating utilization ratios directly influence personal credit scores and long-term borrowing capacity.