Portable Mortgages: Can You Take Your Mortgage to a New Home?

A portable mortgage lets you carry your existing loan, and your existing interest rate, from your current home to a new one when you move. Instead of paying off the old loan and taking out a new one at today's rates, you move the loan with you. It is a real product in Canada and the United Kingdom. In the United States, it barely exists yet, though more buyers are asking about it now that so many homeowners are locked into low rates they do not want to give up.

So the honest answer is this. Most US homeowners cannot get a truly portable mortgage today. But there is a practical way to solve the problem portability is meant to solve, and we will get to it.

Why portable mortgages are appealing right now

A lot of homeowners are sitting on a mortgage in the 2 to 3 percent range and cannot imagine moving, because a new loan would come at a much higher rate. That is the "rate lock-in" effect, and it is keeping people in homes they have outgrown. Portability is the dream fix: keep your low rate, just point it at a new house. It is the same instinct behind the renewed interest in assumable mortgages, where a buyer takes over a seller's existing low-rate loan.

The reality in the US market

US mortgages are generally not portable. Your loan is secured by a specific property. When you sell that property, the loan gets paid off, and buying the next home means a new loan at current rates. There is no widespread US program that lets you detach your note from one house and re-secure it to another.

That said, the terms of individual loans vary, and servicers differ. So the one concrete step worth taking is to ask. Contact your loan servicer directly and ask whether your mortgage note can be secured by a new property, in other words, whether any form of portability or loan substitution is available on your specific loan. Most will say no. But it costs you nothing to confirm, and you want that answer before you plan a move around it. The federal consumer mortgage resources are a good primer before that call so you know what to ask.

The real-world workaround: finance the gap

Here is where the problem actually gets solved. When you move up to a more expensive home, the issue is rarely the loan itself. It is the gap between what your current mortgage covers and what the new home costs. That gap is what stops people from moving.

We can finance that gap. If you have equity in your current home, a home equity line of credit lets you tap it to bridge the difference, so you can buy the new home without waiting to sell first or without surrendering your position. For buyers whose real need is "I found the next house but my money is tied up in this one," a HELOC or a bridge loan is the tool that portability is really standing in for. You keep moving forward, and you use your existing equity to cover the gap rather than hoping for a product the US market has not built yet.

If you are trying to move up without losing your footing, that is a conversation worth having. Reach out and we will look at your equity and the gap and map out the cleanest path.