The “Lock-In Effect”: Why Some Homeowners Stay Put
By David Parks · eXp Realty · The Apollo Group · 2 min read
The Short Answer
The lock-in effect is when homeowners with low mortgage rates choose not to sell because a new loan would cost more each month. It can reduce the number of homes for sale.
Illustration by David Parks
How it works
Someone with a low fixed rate has a strong reason to stay, even if they want a different home. Selling means giving up that rate and taking a new one at current levels.
Effects on the market
Fewer sellers means less inventory, which can support prices even when rates are high. It also means buyers have fewer choices.
Quick Poll
What do you most want to understand about the market?
The answer depends on your plans. Talk with David and he will give you a straight answer.
What homeowners can consider
Whether home improvements make more sense than moving.
Whether features like assumable loans or rate buydowns apply.
Whether life changes, like job moves or family needs, outweigh the rate difference.
How much equity you have, and what you would pay monthly in a new home.
For buyers
Seller concessions, builder incentives, or temporary buydowns can lower early payments. A lender can model the monthly impact of each approach so you can compare.
Takeaway
The decision is personal and financial. Run the numbers before deciding to stay or move.
Key Takeaways
How it works: Someone with a low fixed rate has a strong reason to stay, even if they want a different home.
Effects on the market: Fewer sellers means less inventory, which can support prices even when rates are high.
What homeowners can consider: Whether home improvements make more sense than moving.
For buyers: Seller concessions, builder incentives, or temporary buydowns can lower early payments.
This article is general information, not legal, tax, financial or inspection advice. Every home and situation is different, so confirm details with a licensed inspector, lender, attorney or tax professional.
David is a Greater Denver real estate advisor with eXp Realty and The Apollo Group (Colorado broker license FA100103211). He has closed more than $55 million in volume, earned eXp Icon status in 2025, and holds a 5.0 rating on Zillow from 27 verified reviews.