What is a potential downside of a rate lock for the borrower?

The potential downside of a rate lock for the borrower is that it may be expensive to extend if the closing is delayed. A rate lock guarantees a borrower a specific interest rate for a predetermined period, protecting them against interest rate increases during that time. However, if there are delays in the closing process, borrowers might find themselves needing to extend the rate lock. This extension often comes with additional costs, which can add financial strain.

Choosing a shorter rate lock period can seem beneficial in a declining rate environment, but it doesn't protect against the costs associated with unforeseen delays, which can happen for various reasons such as paperwork issues or appraisal delays. Understanding this aspect helps borrowers plan more effectively regarding their financial obligations in the mortgage process.