Mortgage Rate Lock Strategy
Mortgage Capital · NMLS# 1859012 · Licensed Florida mortgage broker
A rate lock freezes your interest rate for a set window, usually 30 to 60 days, protecting you from increases while your loan closes. The strategy question is when to lock and for how long, because locking too early can mean paying for an extension, and floating too long exposes you to a spike.
For Florida buyers, the right lock strategy depends on your closing timeline and your read on rate volatility. The goal isn't to call the bottom; it's to remove uncertainty at a rate that makes your purchase work.
When to lock
Lock once you have a signed contract and a clear closing date, choosing a window that comfortably covers it. A 45-day lock is common for a standard purchase.
If rates are favorable and trending up, locking sooner protects you. If they're easing and your closing is far off, a short float can pay off, but only if you can stomach the risk.
Float-down and extensions
A float-down option lets you capture a lower rate if the market improves after you lock, usually for a fee. It's worth considering in a volatile or falling market.
If your closing slips past the lock expiration, an extension keeps your rate but costs money. Build in buffer days to avoid paying for one.
Matching the lock to your situation
New construction with a distant closing may call for a longer or extended lock, sometimes with a one-time float-down. Resale purchases usually fit a standard 30-to-45-day lock.
Talk through volatility with your loan officer. In a calm market, a short lock is cheap; ahead of major inflation or Fed news, a longer lock buys peace of mind.
Frequently asked questions
How long can I lock a mortgage rate?
Common locks run 30 to 60 days, with longer locks available for new construction or distant closings, sometimes at extra cost.
What is a float-down option?
It lets you capture a lower rate if the market improves after you lock, usually for a fee. It's useful in a volatile or falling market.
What happens if my lock expires before closing?
You'll typically need a paid extension to keep the rate, or you re-lock at current market rates. Build in buffer days to avoid this.
When should I lock my rate?
Once you have a signed contract and closing date. Lock sooner if rates are rising; a short float can help only if you can tolerate the risk.