Does a change in control of an entity trigger California documentary transfer tax?

What Ardmore held

The Documentary Transfer Tax Act lets counties and cities tax each written instrument by which lands or realty sold are conveyed (Revenue and Taxation Code Section 11911). For decades the working assumption was that the tax reached deeds, and that transfers of partnership or LLC interests were outside it except in narrow cases. Ardmore ended that. The transfers there were partnership interests in an entity that indirectly held an apartment building; roughly 90 percent of the interests moved between family trusts, no deed was recorded, and Los Angeles County billed the transfer tax anyway. The Supreme Court affirmed, holding that realty is sold within the meaning of the Act when a written instrument, made for consideration, transfers beneficial ownership of real property, directly by deed or indirectly through a transfer of entity interests. And for deciding when an entity transfer moves beneficial ownership, the court adopted the Proposition 13 change in ownership rules: Sections 64(c) and 64(d) identify the indirect transfers that are real rather than paper. The court required a written instrument and consideration, but expressly rejected the argument that only recorded documents are taxable. One justice dissented on the ground that grafting 1979 property tax concepts onto a 1967 stamp tax expanded it beyond its text; the majority's rule governs.

The continuing partnership exemption

Transfers of interests in an entity taxed as a partnership face a separate statutory question. Section 11925(a) bars the tax "by reason of any transfer of an interest in the partnership or other entity or otherwise" while the partnership is considered a continuing partnership within the meaning of Section 708 of the Internal Revenue Code and continues to hold the realty. The exemption carries no change in ownership condition of its own. When the partnership terminates under Section 708, it is instead treated as having conveyed all of its realty for fair market value, and only one tax may be imposed on that termination (Section 11925(b) and (c)). For partnership years beginning after 2017, the federal repeal of technical terminations means a majority interest transfer no longer ends a partnership by itself, so on the statute's text Section 11925(a) now appears to reach many partnership and LLC interest transfers even where Section 64(c) or (d) is triggered, while transfers of corporate stock remain fully exposed under Ardmore. Ardmore itself did not decide the exemption's reach: the taxpayer there argued that Section 11925 exempted the partnership interest transfers but conceded at trial that it did not apply, and the Supreme Court noted the concession without analysis (926 North Ardmore Avenue, LLC v. County of Los Angeles (2017) 3 Cal.5th 319, fn. 7). Section 11925 has not been amended since 1999, and no appellate court has construed it since the repeal, so its interaction with Ardmore remains open. The statute carries its own limit: an acquisition of all the interests by a single buyer ends the partnership under Section 708(b)(1) of the Internal Revenue Code because no part of the business continues in a partnership (Rev. Rul. 99-6, 1999-1 C.B. 432), which triggers the deemed conveyance of Section 11925(b) rather than the exemption. A charter city taxes on the terms of its own ordinance, and while some ordinances repeat the state exemption word for word (San Diego Municipal Code section 37.0108) and others, such as San Jose, withhold it from entity changes of ownership (San Jose Municipal Code section 4.59.090(D)), each city's text and the county's practice should be confirmed before a partnership-level transfer is priced as taxable or exempt.

The two triggers

Section 64(c) is the change in control rule: a person or entity obtains more than 50 percent of the voting stock of a corporation, or a majority ownership interest in a partnership or LLC. One buyer crossing the line in one transaction is the classic case. Section 64(d) is the original co-owner rule: where real property was contributed to an entity in a proportional-interest transfer that was excluded from change in ownership at the time, the later cumulative transfer of more than 50 percent of the original co-owners' interests is a change in ownership even though no single buyer obtained control. Ardmore itself was a Section 64(d) case, which is worth remembering, because Section 64(d) catches patterns that no one in the deal thinks of as a sale of the company: successive estate planning transfers, staged buyouts among founders, and recapitalizations that cumulatively move the original owners past the halfway mark. The same events that trigger property tax reassessment can therefore carry a second, immediate cost, subject to the continuing partnership exemption for entities taxed as partnerships, and the two analyses should always be run together.

Rates, and why the city matters more than the county

The statutory rate is modest: 55 cents per $500 of consideration or value, with general law cities able to impose half that amount as a credit against the county tax. The real money is in the charter cities, which set their own rates on top. San Francisco's graduated schedule climbs to several percent of the price on large transfers, and Los Angeles adds its base city rate plus, since 2023, the Measure ULA tiers that take several additional percent of high-value transfers. Measure ULA is imposed on the same deed, instrument, or writing by which realty is conveyed that the base tax reaches (Los Angeles Municipal Code section 21.9.2(b)), so on its text it reaches whatever the base tax reaches, including an entity change in ownership under Ardmore. San Jose removes the doubt by drafting: its Measure E transfer tax (San Jose Municipal Code chapter 4.59) defines realty sold to include any acquisition or transfer of ownership interests in a legal entity that would be a change of ownership of the entity's real property under Revenue and Taxation Code Section 64, deems an instrument executed in that event transferring all of the affected realty at fair market value, and taxes the total consideration at 0.75 percent above an exemption threshold that was $2,000,000 at enactment and is indexed every five years beginning July 1, 2025, 1.0 percent above $5,000,000, and 1.5 percent above $10,000,000 (sections 4.59.100, 4.59.110(A)). Its continuing-partnership exemption (section 4.59.090) expressly does not reach an entity change of ownership under Section 64 (section 4.59.090(D)), so in San Jose a partnership or LLC interest transfer that crosses a Section 64 line is taxable whatever its Section 708 status, although transfers that change only the method of holding title with proportional interests unchanged remain excluded (section 4.59.098). On a nine-figure entity deal in the wrong city, the transfer tax can exceed every other state and local cost in the transaction combined, which is why the change in control analysis belongs in the model at the letter of intent stage, not at closing. The measure of the tax on an entity transfer is the value of the California realty whose beneficial ownership moved, and allocating consideration credibly among properties and jurisdictions is part of the compliance work.

How the counties find out

Entity transfers do not pass through escrow or the recorder, but they are not invisible. The acquirer of control, or for an original co-owner change the entity itself, must file a statement of change in control and ownership of legal entities (Form BOE-100-B) with the Board of Equalization within 90 days, and a missed filing carries a penalty of 10 percent of the property taxes on the new base year value (Revenue and Taxation Code Sections 480.1, 480.2, 482). The information is shared with county officials. Post-Ardmore, counties use this reporting to issue transfer tax bills on unrecorded entity transactions, sometimes years after closing. The practical consequence is that not volunteering the tax is not a strategy: the reassessment reporting the deal already requires will surface the transfer, and the bill arrives with interest and penalty exposure attached rather than as a negotiated closing cost.

Practice notes

Diligence on any California entity deal should establish three things before pricing is final: whether the transaction crosses a Section 64(c) or 64(d) line, which county and city rates apply to each parcel, and who bears the tax by contract, because the statute's incidence is not self-allocating and the amounts in charter cities are too large to leave to a boilerplate proration clause. Transfers that stay off the triggers stay untaxed, and proportional interest transfers that change only the method of holding title remain excluded (Revenue and Taxation Code Section 11925(d)). Transfers of interests in an entity taxed as a partnership should be tested separately under the continuing partnership exemption of Section 11925(a), whose reach after the federal repeal of technical terminations has not been settled by an appellate court, so the entity's classification and the sequencing of a multi-step restructuring can determine whether tax is due at all. The Section 64(d) original co-owner ledger deserves particular care in family and founder structures, where no one is tracking cumulative percentages until the transfer that crosses the line. And where a change in control has already happened without a transfer tax payment, the BOE-100-B filing, the reassessment, and the transfer tax exposure should be addressed together, on the taxpayer's initiative, rather than serially as each agency finds the deal. G&G State Tax Group provides change in ownership and documentary transfer tax analysis for entity transactions alongside its state and local tax practice.