Mortgage Rate Locks in Florida: When to Lock and What Breaks One

Educational content only. This article is for informational purposes and does not constitute financial, legal, or lending advice. Loan programs, rates, and eligibility requirements change frequently. Consult a licensed mortgage professional before making any borrowing decision. Mortgage Capital | NMLS# 1859012 | Licensed in Florida.

A mortgage rate lock Florida lenders offer holds your quoted rate for a set number of days while the file closes.

Locks expire, and re-locking almost always costs money. Current pricing sits on our mortgage rates page.

What a lock actually is

The lender commits to your rate and points for a defined period.

If the market rises, you keep your rate. If it falls, you usually do not benefit.

The commitment binds them and, in practice, commits you to closing on time.

Get the lock confirmation in writing with the expiry date on it.

The standard periods

Thirty, forty-five and sixty days are the common options.

Longer locks cost more, usually priced as a fraction of a point or a slightly higher rate.

A ninety-day or longer lock exists for new construction and costs meaningfully more.

Pick the period that matches your real timeline, not your optimistic one.

Why Florida files need longer locks

Insurance binding can add days, especially on older homes or coastal properties.

Condo document reviews and association questionnaires are routinely slow.

A four-point or wind mitigation inspection can surface repairs that delay closing.

A thirty-day lock on a Florida condo purchase is optimistic.

When you can lock

Most lenders require a property address, so you lock after going under contract.

Some offer a pre-contract lock for a fee, which is rare and usually not worth it.

Locking too early wastes days of the period on nothing.

Lock once the contract is executed and the file is genuinely moving.

What happens when it expires

You either pay an extension fee or re-lock at current pricing.

Many lenders apply worst-case pricing on a re-lock, meaning you get the higher of the two rates.

That asymmetry is why the expiry date matters so much.

Track it yourself rather than assuming someone else is.

Extension fees

A short extension typically costs a small fraction of a point.

Longer extensions cost proportionally more.

Ask the fee schedule up front, before you need it.

Where the delay is the lender's fault, ask them to absorb it. Many will.

The float-down option

Some lenders let you capture a lower rate once if the market improves.

It usually requires the drop to exceed a stated threshold.

It is either priced into the rate or charged as a fee.

In a falling market it can be worth it. Ask whether it exists rather than assuming.

What voids a lock

Changing the loan amount, the programme or the down payment.

A material change to your credit score or your income.

Switching properties, which starts the file over.

A large drop in the appraised value, which changes the loan-to-value tier.

Do not open new credit

Lenders re-pull credit shortly before closing.

A new card, a car loan or even a hard inquiry can move your pricing tier.

Furniture financing for the new house is the classic mistake.

Buy nothing on credit until after you have the keys.

Locking versus floating

Floating means accepting the rate on the day you close, whatever it is.

It only makes sense if you can genuinely absorb a higher payment.

Most buyers should lock, because the downside is worse than the upside is good.

Nobody reliably predicts the direction of rates, including lenders.

New construction is its own problem

Completion dates slip, and a lock cannot slip with them.

Extended locks and builder rate programmes exist for exactly this.

Some builders subsidise the extended lock as an incentive.

Ask what happens if the home is late, and get that answer before you sign.

A lock is not an approval

You can hold a locked rate and still be denied.

The lock fixes pricing. Underwriting decides whether you get the loan at all.

Do not treat a lock confirmation as a guarantee of closing.

See our guide to mortgage pre-approval.

What to confirm in writing

The rate, the points, the expiry date and the extension fee schedule.

Whether a float-down exists and what triggers it.

Whether re-locking applies worst-case pricing.

Four short questions that prevent most rate-lock disputes.

Watch the Loan Estimate

Your Loan Estimate shows whether the rate is locked and until when.

Compare each revised estimate against the previous one.

Unexplained pricing changes are worth questioning immediately.

The CFPB explains the Loan Estimate field by field.

Ask what the lock actually costs

A sixty-day lock is not free. It is priced into the rate you are quoted.

Two lenders quoting different rates may simply be quoting different lock periods.

Ask every quote which period it assumes before comparing them.

This is the most common way rate comparisons mislead buyers.

Rate locks on a refinance

There is no seller and no contract deadline, so the pressure is different.

Refinances still take thirty to forty-five days, and a rescission period applies on a primary residence.

Nothing forces you to close, so a lock that expires simply costs you the pricing.

Lock when the maths already works rather than waiting for a better number.

Where to start

Ask your lender for a realistic closing timeline, then lock slightly beyond it.

Quote your insurance early, since that is the usual Florida delay.

Model the payment at your locked rate on our mortgage payment calculator, then get a pre-approval.