You’ve found a house, you’ve got a lender on the line, and now they’re throwing around a term like “rate lock.“ Sounds official, maybe even a little scary. But here’s the thing: a rate lock is just a promise. Your lender promises you a specific interest rate for a specific amount of time. That’s it. But if you don’t ask the right questions before you agree to that promise, you could end up paying more than you planned or watching your deal fall apart entirely. So before you sign anything or even nod your head, ask these questions.
First, ask straight out: “How long does this rate lock last?“ A typical lock runs 30 to 60 days. That might feel like plenty of time, but here’s the reality – buying a home rarely goes like clockwork. The appraisal might take longer than expected. The seller might hit a snag with their own moving plans. Your bank might ask for more paperwork. If your lock expires and you’re not ready to close, you’ll be back to the mercy of whatever rates are doing that day. And if rates have gone up, your monthly payment goes up too. So ask not just how long the lock lasts, but what happens if you need more time.
That leads to the second question: “What does it cost to extend the lock?“ Some lenders will let you extend for free or for a small fee. Others will charge you a chunk of money, or worse, make you pay for a new lock at a higher rate. Don’t let this be a surprise. Ask about the extension policy before you lock, not after you’re desperate. A good lender will lay this out plain and simple. If they start getting vague or saying “we’ll cross that bridge when we come to it,“ that’s a red flag. You want someone who’s upfront about the numbers.
Third, and this is a big one: “What happens if interest rates go down while my lock is in place?“ You might think you’re just stuck with the higher rate. Not always. Some lenders have a “float down” option. That means if rates drop during your lock period, you can get the lower rate. But that option usually costs extra up front, or it comes with conditions. So ask if a float down is available, how much it costs, and exactly how much rates would have to drop for you to use it. Otherwise, you could watch rates fall and feel like a fool locked into a higher payment.
Fourth, ask about the kind of lock you’re getting. There are locks tied to a specific loan program, and there are locks tied to a specific property. If your loan program has to change – say, you were doing a conventional loan but then find out you need an FHA loan instead – your locked rate might not transfer. Same thing if the house doesn’t appraise for the sale price and you have to renegotiate. So ask: “Does this lock stay valid if we change loan types or if the property details change?“ You need to know if your lock is flexible or if it’s carved in stone.
Fifth, don’t forget to ask about what the lock actually covers. A rate lock locks your interest rate, but what about points, fees, and closing costs? Some lenders will lock the rate but then try to sneak in higher origination fees or other charges later. Ask for a written guarantee that the lock includes the entire cost structure – the rate, the annual percentage rate, and all the lender fees. If they won’t put it in writing, walk away.
Finally, ask about the lender’s own track record. Not in a rude way, but something like: “How often do your locks actually close on time?“ A lender who has a habit of missing closing dates is going to cause you headaches. A good lender will tell you straight that most of their clients close within the lock period, and they’ll give you a plan for what happens if delays occur.
Remember, you’re not being difficult by asking these questions. You’re being smart. A mortgage is likely the biggest debt you’ll ever take on, and a tiny difference in your rate can mean tens of thousands of dollars over the life of the loan. So ask everything. Write down the answers. And if a lender doesn’t want to answer, that tells you all you need to know about how they do business. Lock in your rate with your eyes wide open, and you’ll sleep a whole lot better when you’re sitting at the closing table.
