Nearly half of outstanding mortgages still carried rates of 4% or lower in the first quarter of 2026, according to a July analysis of federal mortgage data. By July 23, the average 30-year fixed mortgage rate had reached 6.58%, widening the financing gap facing homeowners who want to move.
That gap is pushing some unsuccessful sellers toward the rental market. Rather than accept a larger price cut or replace inexpensive debt, they are keeping their existing mortgage and becoming “accidental landlords” — often without having planned to own rental property.
Why low-rate owners are not selling
Another 28% of outstanding mortgages carried rates between 4% and 6%, putting nearly 78% of existing loans below 6%. A record 41.2% of mortgages were five to seven years old, reflecting the 2019–2021 buying and refinancing wave. Selling may require those owners to replace their existing loan with considerably more expensive financing, even when purchasing a similarly priced home.
FHFA researchers estimated that each percentage-point increase between the market rate and a borrower’s original rate reduced the probability of a sale by 18.1%. A relocation, divorce, job change, or growing family may still make moving unavoidable. Renting allows the owner to relocate without immediately surrendering the existing mortgage.
How failed listings become rentals
A March analysis of rental listings found that 2.3% of homes offered for rent had previously been listed for sale. Only one month in the study’s nearly six-year record had a higher national share.
The data run through October 2025 because sale and rental records take time to confirm. Researchers counted properties marketed for sale for at least two weeks, removed without a recorded sale, and listed for rent within three months.
Mortgage rates are not the only factor. Equity, asking-price expectations, buyer demand, and achievable rent also shape the decision.
Owners with substantial equity and low monthly payments may have more room to reject a discounted offer. Leasing can postpone the sale, but rent must still cover vacancies, repairs, insurance, taxes, association dues, and management costs.
Where rental conversions are rising
The highest accidental-landlord shares appeared in markets where homes were taking longer to sell and buyers had gained negotiating leverage. Denver led at 4.9%, followed by Houston at 4.2%, Austin at 4.1%, and San Antonio at 3.9%. Seven of the 10 highest-share markets were in Texas or Florida.
Detached houses were more likely to shift from the sales market to the rental market. Former for-sale properties accounted for 3.4% of single-family homes listed for rent, compared with 2.2% of townhouses and 1.1% of condos.
For agents, an expired or withdrawn listing may no longer represent a likely relist. The owner may instead be comparing a lower sale price with the costs and obligations of operating a rental.
Run the rent-versus-sell numbers first
A seller may need both scenarios when the owner has a low mortgage rate, a clear reason to move, and enough potential rent to justify a full cash-flow analysis. Before the appointment, agents can estimate market rent, review comparable sales, and calculate likely proceeds at several list prices. The rental scenario should include:
- Mortgage principal and interest
- Property taxes and insurance
- Association dues
- Vacancy and repair reserves
- Leasing and property management expenses
Agents should also ask about the owner’s remaining loan balance, expected holding period, available reserves, and willingness to manage tenants or hire a professional. Agents can frame the comparison, but clients should take tax questions to a CPA, coverage questions to an insurance professional, legal requirements to an attorney, and operating questions to a property manager.
Before advising a seller, compare likely sale proceeds, realistic net rental income, the replacement mortgage payment, and available reserves. The numbers may support a rental conversion — or show that leasing would only postpone a price adjustment and add the obligations of becoming a landlord.