Rate Locks in Sacramento: When to Lock, How Long, and What Happens If Your Close Slips
A rate lock is your lender's written promise to hold a specific interest rate until your loan closes. Lock at the right time and you're protected. Miss the window or let the lock expire, and your payment can change overnight. Here's how it works in a Sacramento purchase.
What a Rate Lock Actually Does
When you go under contract on a Sacramento home, the clock starts. Rates move every day. A rate lock freezes your rate for a set number of days so that even if the market shifts up 0.25% before you close, your payment doesn't change.
Without a lock, your rate "floats" with the market. That can work in your favor if rates drop. It can also cost you real money if rates climb.
How Long Should You Lock?
Standard lock periods are 30, 45, or 60 days. The right choice depends on where you are in the process when you lock.
Lock Period
When It Fits
Trade-Off
30-Day
Already in underwriting, closing soon
No buffer if close slips
45-Day
Most Sacramento purchase transactions
Small cost premium over 30-day
60-Day
Complex files, delayed closings, new builds
Higher cost built into rate
90+ Days
Long new construction timelines
Meaningful rate premium
For most Sacramento resale purchases, a 45-day lock is the right call. It covers the typical 30-45 day escrow with a small cushion for appraisal delays, document requests, or seller-side hiccups.
When Should You Lock?
The short answer: once you have a signed purchase agreement and you're confident the deal is moving forward. That's usually right after offer acceptance in a Sacramento purchase.
Waiting to lock is a bet that rates will drop. That bet is sometimes right. But in 2025, 30-year fixed rates moved more than 0.80% within single quarters. If rates move up 0.25% before you lock on a $550,000 Sacramento home, your payment goes up roughly $90/month. That adds up.
Most experienced buyers and their agents don't try to time the market. They lock when the deal looks solid and move on.
What Is a Float-Down Option?
A float-down lets you capture a lower rate if the market drops after you lock. Not every lender offers them. Those that do typically charge 0.25% to 1.00% of the loan amount upfront, and require the market rate to drop by a set threshold (often 0.25% to 0.50%) before the float-down kicks in.
Float-down availability, pricing, and trigger thresholds vary by lender and program. Confirm current terms with your loan officer before quoting specifics to clients.
Run the math before paying for a float-down. If it costs $1,500 and saves you $40/month, your break-even is about 38 months. If you plan to stay or keep the property longer than that, it may be worth it.
What Happens If Your Close Slips?
Escrows don't always close on the original date. Appraisals get scheduled late. Sellers need a few extra days. Underwriters ask for one more document.
If your lock expires before you close, you have two options:
1. Pay to extend the lock.
Most lenders charge 0.125% to 0.375% of the loan amount per 7-day extension. On a $550,000 loan, that's $690 to $2,060 per week. Not cheap, but often less painful than re-locking at a higher rate.
2. Re-lock at current market rates.
If rates have dropped since your original lock, this might actually help you. If rates have risen, you're now locked at a higher rate than you started with.
The critical detail: most lenders require you to request an extension before the lock expires, not after. If you miss that window, you may lose the locked rate entirely and have to start over at market. Your loan officer should be tracking this date for you.
Rate Locks for New Construction in Sacramento
New builds in Sacramento suburbs like Folsom Ranch, Lincoln, and Elk Grove often take 90 to 180 days from contract to close. That's well outside standard lock periods.
Options for new construction buyers:
Extended lock programs (90-180 days) exist but come with higher rates or fees built in. Some builder-preferred lenders offer lock programs specific to their communities. Those programs often carry incentives but require comparison shopping to evaluate fairly.
If you're buying new construction, talk through lock strategy before you sign the purchase agreement, not after. Timing matters more on a long-build timeline.
Frequently Asked Questions
Q: Can I lock my rate before finding a home?
A: Some lenders offer "lock and shop" programs that let you lock a rate before you have a purchase agreement. These can be useful in fast-moving markets, but they carry their own timing risks and fees. Ask your loan officer if this program is available and whether it fits your situation.
Q: Does locking a rate cost me anything?
A: Standard 30-45 day locks are typically embedded in the rate itself, not charged as a separate line item. Longer locks, float-down options, and extensions usually come with explicit costs.
Q: What if I change loan programs after locking?
A: Changing loan types, loan amounts, or property addresses after locking can trigger a re-lock at new market rates. Talk to your loan officer before making any changes to the deal structure after you've locked.
Q: Who is responsible for monitoring my lock expiration?
A: Your loan officer should be watching this, but you should know the expiration date too. Ask for the lock confirmation in writing when you lock and mark the date on your calendar.
Q: What if rates drop significantly after I lock?
A: Depending on your lender, you may be able to renegotiate or use a float-down option if one was included. If neither is available, some buyers choose to close on the original lock and refinance later if rates keep falling. This is a judgment call based on how far rates have moved and how long you expect to keep the loan.
Ready to talk? Call (916) 794-0777 or visit thechriskennedyteam.com | NMLS #971546 | Serving Sacramento, Placer, El Dorado, and Yolo Counties. This article is for educational purposes only and is not a commitment to lend. Rates and program guidelines are subject to change. Contact a licensed loan officer for current terms and a personalized quote.