Financing a Home Resource Center Mortgage Rates & Buydowns

What Is a Mortgage Float-Down Option?

Published 2026-09-09 Last reviewed 2026-09-09 By Lisa C Hamilton, REALTOR®

Quick Answer

A mortgage float-down is a lender feature that may allow a borrower with a locked rate to obtain improved pricing if market rates decline enough before closing and the lender's conditions are met. It is not automatic and not universally offered.

Why Buyers Want It

You lock. Rates fall.

Naturally you think: "I want today's lower rate."

A float-down may provide a path.

Questions to Ask Before Locking

  • Is float-down available?
  • What market movement triggers it?
  • Is there a fee?
  • How close to closing can it be exercised?
  • Can it be used more than once?

Don't Build Strategy Around Predicting Rates

Nobody reliably knows exactly where mortgage rates will be next week.

Focus on the payment you can afford, the home you want, and the financing terms available now.

Frequently Asked Questions

Does every lender offer it?

No.

Is it free?

Not necessarily.

Can I just switch lenders?

Possibly, but timing, appraisal, underwriting and contract deadlines can make switching risky.

Related Reading on This Site

Resource Center

Financing a Home

Start here for every financing guide in this series.

 Guide

Mortgage Rates, Buydowns & Points Hub

Every rate, buydown and point guide in one place.

 Guide

What Is a Rate Lock?

How locking pricing works.

 Guide

What Can Delay Closing?

Why timing matters to the float-down window.

 Guide

How to Read a Loan Estimate

Where pricing and lock assumptions appear.

 Guide

New Construction Financing

Long build times raise lock and float-down questions.
Lisa C Hamilton, REALTOR® with THE Brokerage, A Real Estate Firm®

Reviewed by

Lisa C Hamilton, REALTOR®, NV License S.168195

Lisa C Hamilton is a Las Vegas Valley REALTOR® affiliated with THE Brokerage, A Real Estate Firm®, helping buyers, sellers, investors, and relocating clients across Clark County and Greater Las Vegas with local market knowledge, property research, and direct personal representation. She is a REALTOR®: she handles the real estate side of your transaction. Individualized mortgage advice comes from an appropriately licensed lender.

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Your lender handles the rate. Lisa helps protect the real-estate timeline.

Lisa coordinates the transaction so financing decisions don't unnecessarily jeopardize the house.

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Mortgage qualification, rates, loan amounts, and program eligibility are determined by your lender and current program rules, not by Lisa. Always verify current figures with an appropriately licensed mortgage professional and the applicable agency (HUD/FHA, VA, USDA, Fannie Mae, Freddie Mac, or the CFPB).