Homeowner lock‑in occurs when owners choose not to move or trade homes because the costs of moving outweigh the expected benefits, even if a different house would better match preferences or productivity.
Main causes:
- Mortgage interest-rate differential: Owners with below-market mortgage rates face large implicit costs to give up that rate when selling and buying a new home with a higher rate.
- Explicit transaction costs: Real estate commissions, closing costs, inspections, and legal fees.
- Moving costs and frictions: Physical moving expenses, time, disruption, and search costs.
- Local ties and nonmarket benefits: Access to schools, jobs, social networks, healthcare, and neighborhood amenities.
- Tax/treatment effects: Capital gains taxes, loss of tax benefits, or eligibility changes for programs tied to residence.
Market and welfare consequences:
- Lower labor mobility: Fewer relocations for job matches can reduce labor market efficiency and wage growth.
- Reduced housing market liquidity: Fewer transactions, slower price adjustment, and potential misallocation of housing stock.
- Inefficient matches: Households remain in suboptimal homes (too big/small or wrong location).
- Distributional effects: Those with favorable legacy mortgage terms gain implicit wealth; potential intergenerational impacts.
- Amplified regional imbalances: Areas with many locked‑in owners have less turnover, affecting supply for newcomers.
Possible solutions:
- Mortgage refinancing options with minimal closing costs or streamlined refinances can reduce lock‑in.
- Portable or assumable mortgages let buyers take over favorable rates.
- Tax policy: Changes to capital gains exemptions or transaction taxes can influence mobility.
- Subsidies or relocation assistance for job-related moves (public employers, corporate relocation packages).
| Current rate | Likelihood to move |
| ≤ 3% | 10% |
| 3.1%–4% | 18% |
| 4.1%–5% | 30% |
| 5.1%–6% | 45% |
| 6.1%–7% | 60% |
| 7% | 75% |
