Eighty percent of homeowners with a mortgage have a rate below 6 percent. If you are one of them, you have probably done the math in your head: sell your current home, buy a new one, and your monthly payment doubles. Maybe triples. The trade does not pencil. So you stay.
This is the rate lock-in effect. It is one of the biggest stories in real estate right now, and it is the reason inventory has been low for years. Homeowners who would normally upgrade or downsize are sitting on rates they cannot replace. The math has them frozen.
If you are reading this thinking "that is exactly my situation," I want to tell you something that most loan officers will not. The math you are doing in your head is incomplete. You are comparing two payments side by side. You are not looking at the actual financing strategies that exist for people in your situation.
The math you are running in your head
Here is what most homeowners with a low rate are calculating. Take a typical Los Angeles example. You bought in 2020 at 3.25 percent, financed 600,000 dollars, and your principal and interest payment is around 2,610 dollars a month. You have built solid equity. You want to move up to a 1.5 million dollar home, putting down 500,000 from the sale of your current place.
A new mortgage of 1 million at 6.5 percent puts your principal and interest at around 6,320 dollars a month. That is a 3,710 dollar increase. Your brain rejects the trade. You stop thinking about moving.
This is where most loan officers leave you. They tell you to wait. The honest answer is that the math above is not the only math, and waiting has costs you are not seeing.
What that math is missing
A few things the napkin math leaves out:
- The new home will appreciate. A 1.5 million dollar Los Angeles home appreciating at 4 percent annually adds 60,000 dollars in equity in year one. Your current home appreciating on a 800,000 dollar value at 4 percent adds 32,000. The bigger asset compounds faster.
- Refinancing is built into the strategy. Rates will not stay at 6.5 percent forever. Most economists expect modest declines through 2026 and 2027. When rates drop, you refinance. The high payment is a 24 to 36 month problem, not a 30 year problem.
- The current home becomes an asset, not a comparison. If you keep it as a rental instead of selling, the lock-in protection stays in place and you get a second income stream.
- You have leverage right now. Inventory is rising. Sellers are negotiating. The buyers who move first in this cycle will look back and recognize they bought at the right time.
The four real strategies for buyers with low rates
If you are sitting on a low rate and want to move, there are four real financing approaches. Each one solves a different version of the lock-in problem.
- HELOC on your current home. Open a line of credit on your current home for the down payment on your new home. After you close on the new home and sell the old one, the sale proceeds pay off the HELOC. Your low rate stays intact until the day you sell.
- Bridge loan. A short-term loan against the equity in your current home. You buy without a contingent offer, sell the old home on your timeline, and pay off the bridge with the sale.
- Cross-collateralization. One mortgage uses both homes as security. The equity in the current home reduces the down payment needed on the new home. Less common, but powerful when it fits.
- Keep the current home as a rental. Do not sell at all. Convert your current home to an investment property. We qualify you for the new mortgage using the projected rental income. Your low-rate mortgage keeps working in your favor while you collect rent.
The right strategy depends on your equity, your income, and what you want the second home to do for you. We pick it together. Each option has costs and trade-offs, and not every option fits every situation. But one of them almost always works for an equity-rich homeowner who wants to move.
The hidden cost of waiting
Waiting feels safe. It is not free. While you sit on your low rate, three things are happening:
- The home you actually want is appreciating. If you are eventually buying, every year you wait is a year of price appreciation on the larger property.
- Inventory is changing. The home that is right for you might not be on the market in three years.
- Your life is happening. Kids get older, schools matter, jobs change, parents need to be closer. The right home today is rarely the right home in five years.
A great rate on a home that no longer fits is still a home that no longer fits.
What to do if you are sitting on a low rate
If your situation has changed since 2020 and you are starting to feel the lock-in problem, the next step is not committing to anything. The next step is running the actual numbers for your situation, side by side, with all four strategies on the table.
When we run that comparison, you might find that the move-up math works better than your napkin math suggested. You might also find that waiting really is the right call for another 12 months. Either way, you decide with information instead of a feeling.
If you want to see the four strategies for your specific situation, the Move-Up Method is built for exactly this. Send me your numbers and I will run the comparison.
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