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Mortgage Rate Lock Float Down


A Mortgage Rate Lock Float Down is a mortgage rate lock with the added feature that allows borrowers to decrease their interest rate if market rates decrease during their lock period. This agreement protects borrowers from rising interest rates. However, the exact terms, including the cost, duration and how much the rate could potentially float down, will depend on the specific lender.


Mortgage Rate Lock Float Down: /mɔːrɡɪdʒ reɪt lɑːk floʊt daʊn/

Key Takeaways

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  1. Mortgage Rate Lock: A mortgage rate lock float down is an option that allows borrowers to secure a lower interest rate if the market rates fall during the loan process. This offers a form of protection against rising interest rates giving peace of mind to the borrowers while their loan is being processed.
  2. Flexible: It’s a flexible choice that allows borrowers to capitalize on lower interest rates, even after agreeing to a specific rate. However, not all lenders offer this option and conditions can vary, so it’s crucial that borrowers fully understand their lender’s policies.
  3. Additional cost: It’s also important to note that a rate lock float down usually comes with an additional cost. The exact cost depends on the lender and the structure of the loan agreement. Therefore, borrowers need to count this cost against potential savings from lower interest rates to determine its cost-effectiveness.



A Mortgage Rate Lock Float Down is an important business/finance term because it provides borrowers with a measure of protection against potential rises in interest rates during the process of closing on a property. When a borrower locks in a mortgage rate with a lender, they’re guaranteeing that specific interest rate for a designated period of time, regardless of market fluctuations. The “float down” aspect comes into play when the market rates drop during this lock-in period. Essentially, it gives borrowers an option to ‘float down’ to this lower rate before finalizing their mortgage, ensuring they secure the most advantageous rate possible. This tool is vital for securing lower monthly payments, ultimately saving the borrower potentially thousands over the lifespan of the loan.


A Mortgage Rate Lock Float Down is a distinct mortgage rate lock agreement provision that enables a borrower to secure a lower interest rate if market interest rates decline during the lock period. The primary purpose of this arrangement is to protect the borrower from rising interest rates while they are still in the process of finalizing their mortgage loan terms. With this sort of strategy, borrowers can still benefit if the market rates tumble, negating the risk of potentially missing out on a more financially advantageous scenario. Thus, a Mortgage Rate Lock Float Down serves a defensive strategy role in personal finance planning and helps ensure that a borrower achieves optimal mortgage terms according to market conditions.The implementation of a Mortgage Rate Lock Float Down primarily aids borrowers to manage their long-term financial commitments more effectively concerning their property investment. The overall objective of this instrument is to provide a financial safety net for mortgage borrowers as it helps them secure more favorable loan conditions. Furthermore, it maintains lower monthly payments and potentially saves a significant amount of money over the lifespan of the loan. Thus, a Mortgage Rate Lock Float Down demonstrates utility in securing the most economically viable mortgage deal, helping to mitigate the effects of financial market volatility on the individual borrower.


A Mortgage Rate Lock Float Down is an arrangement whereby a lender and a borrower agree to lock in a particular interest rate for a loan. This rate can fluctuate if market interest rates decrease before the closing of the mortgage agreement.Here are three real world examples:1. **First Case:** A home buyer applying for a mortgage loan locks in a 30-year fixed interest rate of 4.5% with a rate lock float down option. Before closing, interest rates on the market fall to 4.2%. Since the borrower has the privilege of a mortgage rate lock float down, the lender has to reduce the interest rate to the current market rate, i.e., 4.2%. The borrower gets to close at the lower rate, securing a less expensive loan.2. **Second Case:** A business wanting to purchase commercial real estate agrees on a fixed interest rate of 6.0% with mortgage loan provider. However, due to certain economic events, market rates decline to 5.5% before the closing date. With a mortgage rate lock float down in place, the business benefits as the lender must adjust and lock the loan at the lower 5.5% interest rate.3. **Third Case:** A couple, seeing that interest rates are on the rise, rushes to lock in a rate on their dream house. They agree with a lender on an interest rate of 3.75% using a mortgage rate lock float down policy. Fortunately, the interest rate decreases to 3.5% due to unforeseen changes in economic conditions. The lender, according to the terms of the mortgage rate float down policy, adjusts and secures the loan at the revised lower interest rate. The couple benefits by having to pay less interest overall on their mortgage.

Frequently Asked Questions(FAQ)

What is a Mortgage Rate Lock Float Down?

A Mortgage Rate Lock Float Down is an arrangement between a borrower and a lender that allows the borrower to lock in a specific interest rate for a given period of time. If during this period, interest rates fall, the borrower has the option to float down to that lower rate for their mortgage.

How does a Mortgage Rate Lock Float Down work?

Once the borrower has locked in a rate with their lender, they monitor the interest rates. If rates decline during the lock period, the borrower can re-lock at the lower rate.

When is the ideal time to opt for a Mortgage Rate Lock Float Down?

If you anticipate that interest rates might drop in the near future, a Float Down option could be beneficial.

Does a Mortgage Rate Lock Float Down come with extra charges?

Yes, typically lenders charge a fee for the float-down feature. It’s important to evaluate whether the potential savings from a float down will offset this fee.

Can I float down multiple times?

Generally, no. Most lenders allow you only one opportunity to float down.

Can I decide not to use the float down option?

Yes, if rates do not decrease or if the cost of the float down fee outweighs potential savings, you can proceed with the initial locked-in rate.

Is a Mortgage Rate Lock Float Down option available in all types of loans?

No, not all lending institutions may provide this option and the ones that do might not offer it for every type of loan. The conditions can vary by lender and by the specific terms of a loan.

How many days are usually included in the lock period of a Mortgage Rate Lock Float Down?

The lock period usually varies from 30 to 60 days, but this can differ based on the lender’s terms and conditions.

Does the lowered rate last the length of my loan?

Yes, if you opt to float down to a lower rate, that rate becomes the fixed interest rate for the duration of your mortgage, unless you have an adjustable-rate mortgage.

Related Finance Terms

  • Interest Rate Cap
  • Floating Rate
  • Refinancing
  • Lock-in period
  • Fixed-rate mortgage

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