18% of homes in California pass hands via inheritance, which is about twice the national average.
The reason for this might be explained by the observation that the very large “baby boom” cohort’s leading edge is now 80 years old – and many are passing away.
Due to California’s Proposition 13 tax benefits, many of those who moved (often out of state) have kept their home to lock in the low Prop 13 property tax rates which can be retained by their heirs.
Nationally, the % of inherited homes, while not as large as CA, has also reached record levels, suggesting this has much to do with the baby boom cohort starting to pass away, and in the case of CA, the effects of Prop 13.
Many commenters on social media start with generation bashing as the explanation. (He appears to agree with my analysis after I shared a summary.)
Here is an AI Assisted Analysis of the Situation
The rise to 18% of California home transfers occurring via inheritance is plausibly tied to the aging and mortality of the Baby Boom cohort, combined with California‑specific migration and tax dynamics. The available evidence strongly supports both mechanisms.
The Baby Boom cohort is now entering the high‑mortality years
Baby Boomers began turning 65 in 2011. The oldest Boomers are now 80, and the cohort is enormous—about 70 million people at its peak. As this group ages:
- Annual deaths rise sharply beginning around age 75–85.
- Boomers own a disproportionate share of U.S. housing wealth—$19.7 trillion in real estate nationally.
- As mortality increases, the number of inherited homes naturally increases.
This is exactly what we see in the data: inherited homes reached record levels nationally, accounting for 7% of all U.S. property transfers in 2025.
California’s share is even higher at ~18%, reflecting its unique structural factors.
California’s retirees often leave the state—then pass homes to heirs
California has long had net out‑migration among retirees, driven by:
- High housing costs
- High taxes
- Lower‑cost alternatives in nearby states (Nevada, Arizona, Oregon, Idaho)
When a California homeowner retires and moves out of state, two things happen:
- They often keep the California home (especially if it has low Prop 13 tax basis).
- When they eventually pass away, the home transfers to heirs rather than being sold on the open market.
This dynamic increases the inheritance share of transfers even if the total number of transfers stays flat.
California’s tax structure amplifies the inheritance effect
California’s property tax rules create powerful incentives:
- Prop 13 keeps property taxes extremely low for long‑term owners, discouraging sales.
- Prop 19 changed inheritance rules, but many heirs still keep inherited homes—sometimes moving in to preserve the tax basis.
- These incentives reduce voluntary sales and increase the proportion of transfers that occur only at death.
This means even modest increases in mortality among long‑term owners can produce large increases in inheritance transfers.
Evidence
Recent reporting shows:
- California inheritance transfers rose from 12% in 2019 to 18% by 2025–26.
- Nationally, inherited homes reached a record share of transfers as well.
- Analysts attribute this to the Great Wealth Transfer, driven by aging Boomers.
The first wave of Boomers is now entering the period where mortality accelerates.
The Three Drivers
The rise in inheritance transfers in California is explained by three interacting forces:
- Demographics: Boomers aging into high‑mortality years.
- Migration: Many California retirees relocate out of state but retain their California homes.
- Tax incentives: Prop 13 and Prop 19 encourage holding homes until death and encourage heirs to keep them.
These factors combine to push the inheritance share to 18%, roughly double the national average.
