Why Your Mortgage Rate Can Change Before Closing

🎬 Video ScriptEditorial Team•August 14, 2026
Person reviewing finances at a desk with a laptop, calculator and documents

HOOK

Locked in a mortgage rate? Great—until closing gets delayed and that rate starts to slip away. Here’s how a rate lock really works, and what to do before it expires. [B-roll: homebuyer reviewing closing papers, calendar pages flipping]

KEY POINT 1

A rate lock is basically a promise from the lender to hold your interest rate for a set time, usually 30, 45, or 60 days. That matters because mortgage rates can move while your loan is being processed. [B-roll: simple graphic showing “locked rate” vs “market rate”]

KEY POINT 2

The catch is the clock. If your closing takes longer than the lock period, you may have to pay to extend it—or accept a higher rate. That’s why it’s smart to ask your lender exactly when the lock starts and ends. [B-roll: lender timeline with start and end dates highlighted]

KEY POINT 3

Delays happen because of appraisals, paperwork, title issues, or underwriting questions. If your file looks shaky, ask your loan officer early whether an extension might be needed and what it would cost. [B-roll: checklist of common closing delays]

KEY POINT 4

Before you close, compare the locked rate, the monthly payment, and the expiration date on your loan estimate. A few days of attention here can save you real money at the closing table. [B-roll: side-by-side loan estimate and payment calculator]

CTA

Want more mortgage tips like this? Learn how to compare loan estimates, avoid closing surprises, and keep your monthly payment under control. [B-roll: homeowner smiling at closing table, “Save before you sign” text]

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