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A mortgage rate lock extension can keep your quoted rate in place when closing is delayed beyond the lock’s expiration, but it is not automatic and may cost extra. The fee, number of days granted, deadline to request an extension, and approval rules depend on your lender and loan agreement. Confirm the exact expiration time and get the lender’s written extension terms before the lock expires.
This guidance is for U.S. mortgage borrowers. Federal disclosure rules require a specific expiration date and time for a locked rate, but they do not set a standard extension price or guarantee that a lender will approve an extension.
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What is a mortgage rate lock extension?
A rate lock is an agreement that holds specified mortgage pricing for a limited period, subject to the lock’s conditions. An extension adds time to that period when your loan is not ready to close by the original expiration. It may preserve the locked rate, but the extension’s availability and terms are lender-specific.
A lock is not necessarily in place just because you received a quote or started an application. Some lenders lock a rate by the time they issue the Loan Estimate; others may not. Check the Loan Estimate and any separate lock agreement. The first page of the Loan Estimate indicates whether the rate is locked and, if so, when the lock expires. If it is not locked, the rate can change. The CFPB explains these distinctions in its Loan Estimate review guidance and rate-lock overview.
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A lock generally depends on closing within its stated period and on the application remaining consistent with the terms used to set the lock. It does not necessarily protect a borrower against every change to the loan or property details.
When does a rate lock expire?
Use the exact date, time, and time zone in your Loan Estimate and lock agreement—not an estimated closing date or a verbal shorthand such as “through Friday.” For a rate locked for a specific period, Regulation Z requires the Loan Estimate to provide the date and time, including the applicable time zone, when the period ends. See 12 CFR § 1026.37.
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Compare that deadline with the expected closing date, and allow time for the steps that must happen before signing. If there is any uncertainty about whether the scheduled closing falls before expiration, ask the lender to confirm in writing. Do not assume that a scheduled signing, funding, or recording date qualifies as “closing” under your specific lock terms; ask the lender which milestone must occur before expiration.
Find the date in the Loan Estimate and the lock agreement, then confirm:
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- the expiration date, exact time, and time zone;
- which event must occur by then under the agreement;
- whether the lender must receive an extension request before a separate cutoff;
- how much lead time the lender needs to review or approve the request.
If the documents appear to show different deadlines, raise the discrepancy promptly and ask which written term controls. Keep copies of the documents and the lender’s response.
How much does a mortgage rate lock extension cost?
There is no standard nationwide extension fee established by the reviewed CFPB guidance. A lender may charge a fee, but the amount and calculation method depend on its policy and your loan terms. The Loan Estimate does not tell borrowers the price of every possible lock period or extension; the CFPB advises asking the lender directly.
Ask for the total dollar cost, not only a description such as “one-point extension” or “extension pricing.” If the lender gives a percentage, points, or another calculation basis, ask it to translate that into the amount you would pay for your loan. Also ask whether the fee is due upfront or at closing, and whether other rate-dependent terms change at the same time.
Compare the entire revised offer. A fee is only one possible cost: the lender should explain whether the extension changes the interest rate, discount points, lender credits, or other rate-dependent pricing. Request a revised Loan Estimate or other applicable written disclosure and a clear accounting of any changes. Do not assume that an extension keeps every term unchanged unless the lender confirms that in writing.
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Regulation Z’s commentary addresses how a lender may reflect a newly requested extension fee in revised disclosures for a specified good-faith analysis. For that purpose, the amount used cannot exceed the extension fee the creditor charges in its usual course of business. This disclosure treatment does not establish a universal fee, make an extension free, or give a borrower a blanket right to one. See the CFPB’s 12 CFR § 1026.19 and official interpretation.
What should I ask my lender before the lock expires?
Contact the loan officer or mortgage lender as soon as it appears closing may slip. Ask for written answers to the questions below, and have the lender identify the relevant lock-agreement language.
- “What is my exact expiration date and time, including the time zone?” Confirm the deadline against both the Loan Estimate and the lock agreement.
- “How many days would I have to close before my rate lock expires?” Ask which closing milestone must happen before the deadline.
- “What happens if my closing is delayed and the rate lock expires?” Ask what rate or pricing would apply if no extension is granted or requested in time.
- “Can I extend the lock, for how many days, and what is the exact total fee?” Ask for the calculation, payment timing, and any related changes to points, credits, or rate.
- “What is the last date and process for requesting the extension?” A lender may need time to process the request, so do not infer that it can be made at the last minute.
- “Is approval guaranteed, or can the lender refuse?” Ask whether there are eligibility rules, limits, or other conditions.
- “Is a shorter or longer rate lock available, and at what cost?” Ask whether a different lock period changes the Loan Estimate’s pricing.
- “If the delay is on the lender’s side, is there a waiver or fee-sharing policy?” The reviewed sources do not establish a universal right to a waiver or reimbursement; ask what the agreement and lender policy provide.
- “How will the approved extension and any revised pricing be documented?” Request written confirmation of the new expiration date and the terms that remain in effect.
The CFPB specifically recommends asking how much an extension fee would be and whether the lender could refuse to extend the lock. Its guidance also suggests asking about other lock periods and their costs. The exact answers must come from your lender and documents; do not rely on a general fee estimate from another borrower or website.
Should I extend the lock or choose another option?
There is no universally best choice. Compare the written extension offer with the alternatives your lender actually makes available, focusing on total cost, time covered, availability, and what happens to your rate if the lock expires.
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- Extend the existing lock: Ask how many days the extension covers, the new expiration date and time, and whether the existing locked pricing otherwise stays intact. Confirm the fee and any revised points or lender credits.
- Switch to a longer lock: Ask whether this is possible on your loan at this stage and how it affects the rate, points, lender credits, and total cost. A longer period is not necessarily cheaper than an extension.
- Let the lock expire and ask about relocking: Find out how the lender would price the loan afterward and whether the rate would be based on then-current market pricing. This exposes you to rate changes; an expired lock does not guarantee either a higher or lower rate.
- Ask about unlocking: Some lenders may offer an option to unlock, but the resulting rate can be affected by market movement. Ask what the lender’s actual policy permits and what pricing would apply before choosing it.
For each path, put the terms side by side: dollars paid, new rate and points, lender credits, days covered, exact expiration, approval conditions, and any exposure to market pricing. If the lender will not provide a clear written comparison, ask it to explain each option’s total cost using your loan amount and current terms.
One lender’s policy should not be mistaken for an industry rule. For example, Wells Fargo states that customer-paid extensions are subject to fees and caps them at two per loan on its published page; it also identifies unlocking as a possible alternative and notes that market movement can affect the rate. Those are Wells Fargo’s stated terms, not a universal limit or promise that another lender offers the same options. Review the lender’s current rate-lock information only if it is your lender, and verify your own agreement.
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Yes. A rate lock may not insulate the loan from every application or property change. The CFPB identifies changes to loan type, down payment, appraisal, credit score, or documented income as possible reasons the rate may change.
Tell the lender promptly if any of those details change, or if the lender requests new information that could affect them. Ask which specific conditions in your signed lock agreement apply and whether a change would alter eligibility, pricing, or the expiration date. Do not assume an extension fixes a separate issue with the application: it may add time while leaving other lock conditions in place.
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What if my lender will not extend the lock?
Ask the lender to explain the decision, identify the agreement term or policy it is applying, and state what pricing would apply if the lock expires. Ask whether a different lock period or another option is available and request its full terms in writing. If the lender says the request was late, clarify the cutoff and how the request process works; keep records of when you contacted the lender and what it said.
If the lender’s response conflicts with your written documents, point out the specific discrepancy and ask for a written explanation. A disclosure rule requiring an expiration time does not itself require a lender to grant an extension. For help understanding mortgage disclosures or comparing offers, the CFPB’s loan-offer guidance explains questions to raise with lenders.
A practical checklist before you agree
- Confirm that the rate is actually locked and locate the controlling written terms.
- Record the expiration date, time, and time zone, plus the closing milestone that must occur by then.
- Request the extension before the lender’s stated cutoff; do not wait for expiration.
- Get the exact number of added days and the new expiration in writing.
- Get the extension fee in dollars and ask about payment timing and calculation.
- Check for changes to rate, points, lender credits, or other pricing.
- Ask whether approval is discretionary and whether any limits apply.
- Compare available alternatives using total cost and rate exposure, not labels alone.
- Save the lender’s written confirmation and revised disclosures with your loan records.
The core decision is time-sensitive but straightforward: know exactly when the lock ends, ask for options before that point, and compare the written total cost and conditions. The CFPB’s advice is that rate-lock policies vary by lender, so the signed terms and a direct answer from your lender matter more than a generic fee estimate.
Frequently Asked Questions
Does a mortgage rate lock extension change my closing costs?
It can, depending on the fee and any changes to points, lender credits, or other rate-dependent pricing. Ask the lender to show the revised amounts in writing and explain where the extension charge will appear.
Can I get an extension if my mortgage rate lock has already expired?
Possibly, but the CFPB guidance does not establish a right to reinstate an expired lock. Contact the lender immediately and ask whether it can reinstate or relock the loan and what rate and fees would apply.
Can my lender charge an extension fee if the delay was not my fault?
The reviewed federal consumer guidance does not create a general rule that automatically waives the fee for a lender-caused delay. Ask the lender to review the cause of the delay, its policy, and the lock agreement, and request any waiver decision in writing.
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Not necessarily. A lock generally holds the agreed pricing rather than automatically passing through later market declines; ask whether your lender offers any separate float-down option and what conditions or costs apply.
