More US Homeowners Now Carry 6%+ Mortgages — The Lock‑In Era Is Fading

The pandemic-era mortgage bargain is ending — what that means for real estate USA

The moment that locked millions of would-be sellers into their homes appears to be passing. In our analysis of recent data, the share of US homeowners with mortgage rates above 6% now exceeds the share who hold the ultra-cheap sub-3% loans that dominated the pandemic years. That shift matters for the real estate USA market because it loosens the financial incentive that kept so much housing stock off the market.

This is not a small change. Investor Nick Gerli, CEO of Reventure, used Fannie Mae mortgage data for the third quarter of 2025 to show that the share of loans carrying rates of 6% or higher rose from about 7% in 2022 to roughly 20% by late 2025, overtaking the once-dominant pool of sub-3% pandemic loans. Those sub-3% loans had peaked at nearly 25% of outstanding loans in 2021. The National Association of Realtors reports the average age of a first-time buyer reached 40 in 2025, and the share of first-time buyers hit a record low of 21%.

We think this is a structural turning point for the US housing market. It changes incentives for sellers, alters inventory dynamics for would-be buyers, and reshuffles risks for investors. But the consequences will not be uniform: local markets, income and wealth distribution, and interest-rate policy will all shape outcomes.

What the data actually shows

Before we interpret, we have to be precise about what changed and why it matters.

• Share of mortgages with rates under 3%: peaked at nearly 25% in 2021 and has declined since as pandemic loans age or are replaced by higher-rate originations. This pool acted as a brake on turnover for several years.
• Share of mortgages at 6% or higher: rose from about 7% in 2022 to roughly 20% by late 2025, according to Nick Gerli’s analysis of Fannie Mae’s Q3 2025 data.
• First-time buyer statistics: the National Association of Realtors (NAR) reports the average first-time buyer age reached 40 in 2025, and first-time buyers made up just 21% of transactions — a record low.

Nick Gerli summed it up bluntly: the long-running “mortgage rate lock-in effect” is weakening. When a large share of owners have rates close to current market levels, their monthly payments are more comparable to what they would face if they sold and bought another home. That reduces the financial penalty of moving and increases the supply of homes for sale.

Why the lock-in effect mattered — and how it shaped housing prices

The lock-in effect has been one of the clearest supply shocks in recent US housing history. During the pandemic, emergency monetary policy pushed mortgage rates to historic lows. Millions of borrowers refinanced or purchased homes with sub-3% rates. Those loans changed seller behavior in two ways:

• Homeowners with ultra-low rates were reluctant to sell because doing so often meant facing a materially higher mortgage rate on a replacement property.
• Households that might have traded up for a larger home or switched cities delayed those moves, reducing turnover and constraining inventory.

The measurable consequences were straightforward:

• Fewer homes for sale, particularly in the starter-home segment.
• Intense competition among buyers for available inventory, often producing bidding wars and rapid price growth.
• Rising average entry age for first-time buyers and a collapse in their market share.

Jessica Lautz of the NAR said the low share of first-time buyers “underscores the real-world consequences of a housing market starved for affordable inventory.” We agree: when a generation of potential buyers is squeezed out by lack of inventory, the market becomes less efficient and socially less equitable.

How an easing lock-in could change the market for buyers and sellers

The headline implication is simple: if fewer homeowners are hanging on to ultra-low rates, supply should increase. But how that plays out will depend on several forces.

For buyers, especially first-time buyers:

• Increased supply of starter homes would reduce competitive pressure and could cool transaction-level price spikes in some markets. That could make it easier to secure a home without overbidding.
• A larger pool of homes for sale may translate into more choices across neighborhoods and price points, improving affordability in practical terms even if headline prices do not drop sharply.

For sellers and move-up buyers:

• Move-up sellers who now carry 6%+ mortgages may feel more comfortable trading up because their payment differential when buying a new mortgage is smaller.
• Sellers who still hold sub-3% loans may remain reluctant to move, so inventory gains may be gradual rather than sudden.

For investors:

• Greater turnover increases transactional volume, creating opportunities in fix-and-flip, rental conversions, and buy-to-hold strategies where local fundamentals support rents.
• Watch for regions where supply increases but job growth stagnates; those areas may see price pressure.

We should stress that increased supply does not guarantee falling prices. Demand dynamics, credit availability, local job markets, and construction activity will all influence the price path.

Regional differences and why local markets will matter more than ever

National aggregates are useful for headlines, but housing is local. The easing of the lock-in effect will not be distributed evenly.

Factors that will amplify or mute the supply response include:

• Local job growth and household formation rates. Areas with strong employment gains will absorb additional listings faster.
• Existing rental vacancy rates. Los Angeles or New York may behave differently from smaller Sunbelt metros.
• Local zoning and permitting regimes. Cities with restrictive supply-side rules saw larger price gains during the tight-inventory phase and may see slower inventory recovery.
• Share of pandemic-era buyers in a market.