The tax billnobody warned you about.

Not any more, unless it was their own home and you move into it. Before 16 February 2021 the parent-child exclusion covered up to $1,000,000 of assessed value on any real property, including rentals, and there was no occupancy test. Proposition 19 replaced that with a much narrower exclusion limited to the parent’s principal residence and a family farm. An inherited apartment building that was never their residence is reassessed to market value on the date of death, however long the family owned it.

For the family home, the excluded value is the factored base year value plus an inflation-adjusted $1,000,000. The Board of Equalization revises that figure every second February from the FHFA House Price Index for California: $1,000,000 for transfers from 16 February 2021, $1,022,600 from 16 February 2023, and $1,044,586 from 16 February 2025 through 15 February 2027. Market value above the resulting ceiling is added to the transferred basis.

Then the exclusion is not available to you. It requires the heir to occupy the inherited home as their own principal residence and to claim the homeowners’ or disabled veterans’ exemption on it. One child moving in can qualify where co-heirs do not, which is a common source of friction when siblings inherit together and only one of them wants to live there.

No. The change in ownership happens on death, not on the sale, so the property is reassessed first and the higher tax runs from then until escrow closes. Selling ends the exposure — it does not undo it. What it does mean is that the reassessment is a holding cost, and holding costs argue for moving sooner rather than later.

The assessor apportions. The unit they occupied can qualify as the family home, so the residence share of the basis can be excluded if you move into it; the rented balance is reassessed at market value. The calculator models that split, and the share is yours to set. This is the single most common situation among small LA multifamily owners and it is worth confirming your specific parcel with the assessor rather than relying on any calculator.

Yes. A Change in Ownership Statement — Death of Real Property Owner is due within 150 days of the date of death under Revenue and Taxation Code section 480(b), filed with the county recorder or assessor in each county where the decedent held real property, and it is due even where the property was held in a trust. Where the estate is probated it is filed with the inventory and appraisal. The penalty for not filing is $100 or 10% of the tax on the new base year value, whichever is greater, capped at $5,000 on a home carrying the homeowners’ exemption and $20,000 where it does not, and it is added to the roll and collected like a delinquent tax.

It works the other way, and in your favour. For federal capital gains the basis resets to fair market value at the date of death, so a building carrying forty years of appreciation can often be sold shortly afterwards with little or no capital gains tax. The two rules point in the same direction for an heir who does not want to live there: the property tax goes up sharply, and the capital gains cost of selling has just been largely erased. That combination is why so much inherited LA property comes to market within a couple of years.

Then the reassessment lowers your bill rather than raising it, and the calculator will say so. That is rare for anything held long-term in Los Angeles, but it does happen with buildings that have been badly neglected or that carry a basis set at the top of a previous cycle.