Could You Take Your Mortgage Rate With You When You Move?

Imagine owning a home with a mortgage rate of 3% or 4%.

Now imagine that you want to move.

Maybe you need more space. Perhaps you want to downsize. You may be relocating to another part of Puerto Rico or simply looking for a property that better fits your current lifestyle.

There is just one problem:

Selling your home could mean giving up that low mortgage rate.

Your next purchase could require financing at a substantially higher rate, potentially changing the economics of moving altogether.

This is part of what economists call the mortgage lock-in effect.

And it is one reason a concept known as a portable mortgage is receiving attention in Washington.

But before homeowners get too excited, there is an important distinction:

There is currently no federal law giving homeowners an automatic right to take their existing mortgage rate to another property.

What does exist is an active policy discussion and proposed legislation that could eventually change how certain mortgages work.

What Is a Portable Mortgage?

A portable mortgage would potentially allow a homeowner to transfer an existing mortgage from one property to another, subject to specific requirements.

Today, when most homeowners sell a property, the existing mortgage is paid off at closing.

If they purchase another home and need financing, they typically obtain a new mortgage based on current market rates and underwriting requirements.

Portability could change that structure.

Under language contained in the proposed MOVE Act, certain mortgages could allow the same borrower to transfer the existing:

interest rate,

loan terms,

and

remaining balance

to a replacement property.

In simple terms:

You move. Your mortgage could potentially move with you.

Portable Mortgages Are Not the Same as Assumable Mortgages

These two concepts are easy to confuse.

With an assumable mortgage, an eligible buyer purchasing your existing property may be able to assume your mortgage.

The property essentially keeps the financing while the borrower changes.

A portable mortgage works differently.

The original homeowner keeps the mortgage and potentially transfers it to the next property.

That distinction is important.

Why Are Portable Mortgages Being Discussed Now?

Millions of homeowners purchased or refinanced properties when mortgage rates were historically low.

As rates subsequently increased, selling became less attractive for many of those homeowners.

Consider someone who still owes $300,000 on a mortgage at 3.25%.

Even if that homeowner wants to move, replacing that financing with a new mortgage at a substantially higher rate could significantly increase the monthly payment.

The homeowner may therefore decide:

“I'll just stay where I am.”

When that happens across millions of households, the effects extend beyond individual homeowners.

It can reduce homeowner mobility and keep properties that might otherwise be sold from entering the market.

Portable mortgages are being considered as one possible way to reduce that friction.

Did President Trump Approve Portable Mortgages?

No.

This is particularly important because social-media posts can make proposed legislation sound like an existing benefit.

As of September 2, 2026, there is no federal law signed by President Trump giving homeowners the automatic ability to transfer their existing mortgage to another property.

There are, however, real legislative proposals addressing the concept.

The Take Your Rate Act of 2026

In March 2026, H.R. 7754 — the Take Your Rate Act of 2026 was introduced in the U.S. House of Representatives.

Despite its name, the proposal would not immediately create portable mortgages.

Instead, it calls for HUD and the Federal Housing Finance Agency to study the feasibility and potential effects of federally backed portable mortgages.

That study would consider issues including administrative feasibility, housing-market effects, financial-system risks, regulatory changes and how many borrowers might benefit.

In other words:

The Take Your Rate Act is primarily about studying portability — not giving homeowners portability today.

What Is the MOVE Act?

The more significant proposal for homeowners is H.R. 10028 — the Making Ownership Viable for Everyone Act, or MOVE Act.

Introduced on August 3, 2026, the legislation goes further than simply studying portable mortgages.

Under the introduced bill, Fannie Mae and Freddie Mac would be required, within 180 days after enactment, to begin purchasing and securitizing certain conventional mortgages where the lender permits a borrower to transfer the mortgage's:

interest rate, terms and balance

to another property.

The transfer would have to occur within 90 days after the sale of the property originally securing the mortgage.

But those words are crucial:

After enactment.

The MOVE Act has not been enacted into law.

The 180-day implementation period has therefore not begun.

Would Lenders Be Required to Make Every Mortgage Portable?

Based on the legislation as currently introduced, no.

The bill addresses mortgages in which the lender permits the borrower to transfer the financing.

That is very different from Congress declaring that every existing mortgage in the country is suddenly portable.

The proposal would create support in the secondary mortgage market for qualifying portable conventional mortgages.

It does not automatically rewrite every mortgage currently held by homeowners.

Could You Automatically Take Your Existing 3% Mortgage With You?

You should not assume so.

This is perhaps the biggest misconception homeowners should avoid.

The existence of proposed portable-mortgage legislation does not mean everyone currently holding a 3% or 4% mortgage will automatically be allowed to transfer it.

Whether existing mortgages would qualify — versus portability primarily becoming a feature of certain future mortgage products — would depend on the final legislation and subsequent rules.

What Happens If the Next Home Is More Expensive?

This is where portability becomes more complicated.

Suppose you owe:

$300,000 at 3.5%

but your next property requires:

$500,000 in financing.

Porting the existing $300,000 would not necessarily give you the additional $200,000 at 3.5%.

That difference might need to be covered through equity from the sale, additional cash or supplemental financing.

The exact mechanics would depend on how a future portable-mortgage program was ultimately structured.

What About Downsizing?

Portability could potentially be particularly interesting for homeowners who want to purchase a less expensive property.

Someone may currently want to downsize but hesitate because selling means losing an exceptionally low mortgage rate.

If qualifying financing could move with the homeowner, that could remove part of the financial disincentive to move.

The concept could therefore potentially affect decisions involving:

downsizing, move-up purchases, relocation and lifestyle changes.

Could Portable Mortgages Increase Housing Inventory?

Potentially — but they would not solve the housing-supply problem on their own.

Consider the homeowner who says:

“I would sell, but I'm not giving up my 3% mortgage.”

If that homeowner could retain favorable financing when moving, selling might become more attractive.

Multiply that decision across many homeowners and additional properties could potentially enter the market.

However, housing supply is affected by many factors.

Portable mortgages would address one source of friction, not the entire inventory problem.

What Are the Challenges?

Portable mortgages sound simple from a homeowner's perspective.

Implementation is not.

Several major issues would have to be addressed.

Mortgage-backed securities: Mortgages are frequently pooled into securities purchased by investors. Portability could change expectations about how long those loans remain outstanding.

Underwriting: The borrower and replacement property would still need to satisfy applicable requirements.

Appraisal: The new property would need to provide acceptable collateral for the loan.

Loan-to-value: The remaining mortgage balance would need to work with the value of the replacement property.

Additional financing: Move-up buyers may need another source of financing for the difference.

Pricing: Portable mortgages could eventually carry different costs or rates than traditional mortgage products.

There is also one group that would not receive the same direct benefit:

first-time homebuyers.

A first-time buyer does not have an existing low-rate mortgage to transfer.

What Could Portable Mortgages Mean for Puerto Rico?

This is where the proposal becomes particularly relevant locally.

Puerto Rico is included within Fannie Mae's general eligible property locations.

Therefore, if Congress eventually creates a conventional portable-mortgage framework involving Fannie Mae and Freddie Mac, eligible mortgages secured by properties in Puerto Rico could potentially be affected.

But that possibility should not be confused with current availability.

There is no federal portable-mortgage program today that automatically allows a Puerto Rico homeowner to transfer an existing mortgage simply because the MOVE Act has been introduced.

If legislation eventually passes, important questions would still need answers:

Which mortgages qualify?

Would existing mortgages qualify?

Would portability apply primarily to newly originated loans?

Which lenders would participate?

What underwriting requirements would apply?

How would the replacement property be evaluated?

And how would Fannie Mae and Freddie Mac implement the program?

Those details would determine the practical impact for Puerto Rico homeowners.

What Should Puerto Rico Homeowners Do Now?

If you currently have an exceptionally low mortgage rate, don't make a selling decision based on the assumption that you will eventually be able to transfer it.

Evaluate your options using the financing programs and market conditions that actually exist today.

At the same time, the portable-mortgage discussion is worth following.

If a program eventually becomes available, it could materially change the financial calculation for some homeowners considering a sale, relocation or downsizing.

The Bottom Line

The concept behind portable mortgages raises a fascinating question:

What if selling your home didn't necessarily mean losing your mortgage rate?

For some homeowners, that could fundamentally change the decision to move.

But as of September 2, 2026:

The Take Your Rate Act proposes studying portable mortgages.

The MOVE Act proposes going further by supporting certain portable conventional mortgages through Fannie Mae and Freddie Mac.

Neither proposal is currently law.

So if you see a headline claiming:

“Trump just approved a law allowing homeowners to take their 3% mortgage to their next house,”

that does not accurately describe the current status.

There is a legitimate proposal worth watching.

There is not yet a portable-mortgage benefit homeowners can automatically use.

Considering Selling a Property in Puerto Rico?

If you currently have a low mortgage rate and are trying to determine whether selling makes financial sense, your mortgage is only one part of the equation.

At InvEstate Puerto Rico, we help property owners evaluate their property's market position, current market conditions and the real estate considerations involved before making a decision.

Contact InvEstate Puerto Rico for a confidential property and market analysis.