Prop 19 and Tenants in Common: What California Owners Should Know

This post is for informational purposes only and does not constitute legal or financial advice. Tenants in common arrangements involve legal and financial considerations that vary by situation. Property tax rules under Proposition 19 are complex and fact-specific. We recommend consulting a licensed real estate attorney or tax professional before making decisions based on this information.

California’s Proposition 19, which took effect in February 2021, made significant changes to property tax rules that affect how real estate is transferred between family members and what happens to assessed values when ownership changes.

For tenants in common owners, these changes are worth understanding. Whether you are thinking about passing your TIC share to a child, inheriting a fractional interest, or structuring a new purchase, Prop 19 may affect the property tax implications of your decisions.

This post explains what Prop 19 changed, how those changes apply to TIC ownership specifically, and what California owners should keep in mind.

Before Prop 19, California law allowed parents to transfer a primary residence to their children without triggering a property tax reassessment, regardless of the value of the home. Children could also inherit investment properties up to $1 million in assessed value without reassessment. These exclusions were broad and widely used.

Prop 19 narrowed these exclusions significantly. Under the new rules:

• A parent can still transfer a primary residence to a child without full reassessment, but only if the child uses the home as their primary residence. If the child rents it out or uses it as a second home, the property is fully reassessed at market value.
• The tax benefit is also capped. If the home’s market value exceeds the parent’s assessed value by more than $1 million, the child’s assessed value is adjusted upward by the amount of that excess.
• The exclusion for investment properties and vacation homes between parents and children was eliminated entirely.
• Transfers between grandparents and grandchildren follow similar rules, with additional requirements.

The practical effect is that many families who previously could inherit property with a low tax basis now face reassessment — and significantly higher annual property tax bills.

To understand why Prop 19 matters, it helps to understand how property taxes work in California under Proposition 13, which has governed assessed values since 1978.

Under Prop 13, a property’s assessed value is set at the time of purchase and can only increase by a maximum of 2 percent per year, regardless of what happens to market values. Over time, this means a property purchased decades ago may have an assessed value far below its current market value — and a correspondingly low annual tax bill.

When a property changes ownership, it is typically reassessed at its current market value, which resets the tax base and often results in a significant increase in annual taxes. The parent-child exclusions that existed before Prop 19 were designed to prevent this reassessment from occurring in family transfers, preserving the low tax basis across generations.

Prop 19 limited when that preservation is possible, which is the source of most of its practical impact on California families.

TIC ownership introduces specific considerations under Prop 19 that are worth thinking through carefully.

If a TIC owner wants to pass their fractional interest to a child, the same Prop 19 rules apply as with any other residential property transfer. The child must use the property as their primary residence to qualify for the exclusion, and the $1 million cap on the value difference applies.

In a multi-unit TIC building where the parent occupies one unit and the child would occupy a different unit, the analysis becomes more nuanced. Whether the child’s use of their assigned unit constitutes use of the inherited property as a primary residence is a fact-specific question that depends on how the TIC agreement is structured and how California’s assessment rules are applied.

This is an area where working with a real estate attorney or tax professional with California property tax experience is strongly recommended before making any transfer decisions.

When a TIC owner passes away and their share transfers to an heir, the reassessment rules apply based on the relationship between the deceased owner and the heir and how the inherited property will be used.

For a child inheriting a parent’s TIC share in a property they will occupy as their primary residence, the exclusion may apply with the value cap. For a child who will not occupy the property, full reassessment at current market value is likely.

In a TIC building with multiple units, if the inheriting child already lives in a different unit as a co-owner, whether they can treat the inherited unit as their primary residence for Prop 19 purposes is again a nuanced question that requires professional guidance.

When someone purchases a TIC interest — whether from an existing owner or as part of a new group purchase — the transaction is treated as a change of ownership for property tax purposes. The new owner’s fractional interest is reassessed at the purchase price.

This is standard and expected. The Prop 19 considerations arise primarily in the context of family transfers and inheritances, not arms-length market purchases.

One of the more significant practical changes under Prop 19 is the cap on the value exclusion for parent-child transfers of a primary residence.

To illustrate how this works: imagine a parent purchased a home in San Francisco decades ago for $200,000. Under Prop 13, the assessed value has grown modestly to $350,000 over the years. The home is now worth $1,600,000 on the open market.

The difference between the market value ($1,600,000) and the parent’s assessed value ($350,000) is $1,250,000. Under Prop 19, the child can exclude up to $1,000,000 of that difference. The remaining $250,000 is added to the parent’s assessed value to establish the child’s new tax basis.

So the child’s assessed value becomes $350,000 plus $250,000, or $600,000 — significantly lower than the full market value reassessment of $1,600,000, but also meaningfully higher than the parent’s $350,000 basis. The annual property tax bill increases as a result.

In high-value markets like San Francisco and Los Angeles, where TIC properties are most common and home values are among the highest in the state, this cap is likely to affect many family transfers.

For TIC owners who are thinking about the long-term disposition of their interest, a few planning considerations are worth discussing with a professional:

• If passing your TIC share to a child is part of your estate plan, understanding how Prop 19 will affect the tax basis and whether the exclusion will apply to your specific situation is important to do before the transfer, not after.
• The timing of a transfer can matter. Prop 19 applies to transfers that occur on or after February 16, 2021. Transfers completed before that date were governed by the prior rules.
• Trusts are a common estate planning tool in California, and how a TIC interest held in a trust is treated under Prop 19 depends on the type of trust and how the transfer is structured. This is an area that requires specific legal and tax guidance.
• For TIC owners in multi-unit buildings, the interaction between the TIC agreement, the assigned unit, and Prop 19’s primary residence requirement adds complexity that is best addressed with a professional familiar with both TIC law and California property tax rules.

It is worth noting what Prop 19 did not change for TIC owners.

The standard reassessment rules for arms-length purchases remain the same. When you buy a TIC interest at market value, your fractional share is assessed at the purchase price. This is unchanged.

Prop 19 also expanded property tax portability for homeowners over 55, those with severe disabilities, and victims of natural disasters. These owners can now transfer their existing tax basis to a replacement home anywhere in California, up to three times. If a TIC owner qualifies under one of these categories and sells their TIC interest to purchase another primary residence, this portability benefit may be available to them.

As with the other aspects of Prop 19, the specific application to a TIC sale and replacement purchase depends on the facts of the situation and is worth confirming with a tax professional.

Prop 19 introduced meaningful complexity into California property tax planning, and TIC ownership adds another layer to that complexity. The rules are fact-specific, and the consequences of getting them wrong — an unexpected reassessment and a permanently higher tax bill — can be significant.

For TIC owners thinking about estate planning, family transfers, or the long-term structure of their ownership, working with a real estate attorney and a tax professional who understand both California property tax law and TIC ownership is the most reliable way to make informed decisions.

Proposition 19 changed the rules around family transfers of California real estate in ways that affect TIC owners as much as any other property owner. The narrowing of the parent-child exclusion and the introduction of the value cap mean that many transfers that previously had little or no property tax consequence now result in reassessment.

Understanding how these rules apply to your specific TIC interest — whether you are planning your estate, considering a transfer, or simply want to know where you stand — is worth addressing proactively rather than discovering at the moment of transfer.

If you have questions about TIC ownership and financing in California, we are here to help with the mortgage side of the equation.