California, September 2, 2025
News Summary
California’s Office of Tax Appeals (OTA) has acquired expanded authority to challenge tax regulations from state agencies. This change follows a recent opinion by Attorney General Rob Bonta, allowing the OTA to address conflicts between regulations and statutes during taxpayer appeals. This ruling signifies a potential shift in tax dispute resolution in California, offering taxpayers more opportunities to contest unfavorable regulatory actions. The implications were evident in a recent case involving Coast Dental Services, where the OTA upheld tax assessments. Tax practitioners and groups are now watching closely for future developments.
California has recently taken a significant step in its tax policy, as the California Office of Tax Appeals (OTA) has been granted expanded authority under a new opinion from Attorney General Rob Bonta. This new ruling empowers the OTA to challenge tax regulations issued by the state’s two main tax agencies, potentially impacting how tax disputes and regulations are handled in the state.
According to the attorney general’s recent opinion, the OTA can now evaluate conflicts between existing regulations and statutes, allowing it the authority to set aside regulations that conflict with statutory provisions during taxpayer appeals. However, the OTA is not permitted to repeal regulations broadly. This marked authority is particularly noteworthy since the OTA historically refrained from engaging with statutory challenges.
Taxpayer groups and tax practitioners are closely monitoring how the OTA intends to utilize this newfound power, as it could lead to more favorable outcomes for taxpayers in appeals against state tax agency actions. The OTA has a history of issuing monthly opinions on various tax matters, with the next set of opinions set to be released on an upcoming Tuesday.
In a notable case that reflects the implications of the OTA’s expanded authority, the office issued a nonprecedential decision on January 31, 2025, concerning Coast Dental Services, Inc. Coast Dental had attempted to classify its sale of dental practices and assets as exempt occasional sales from sales tax. However, this effort was challenged by the California Department of Tax and Fee Administration (CDTFA), which conducted an audit and found that the sales in question did not meet the criteria for exemption.
The CDTFA issued a Notice of Determination stating that Coast Dental owed $957,275 in sales tax plus interest, determining that the sales constituted a series of transactions requiring a seller’s permit. Coast Dental subsequently appealed the assessment, but the OTA ultimately concluded that the 25 separate sales did not qualify as a single exempt transaction. The panel affirmed that the transactions lacked the necessary interdependence and that Coast Dental failed to demonstrate shared intent among the sales contracts, which would have warranted exemption status.
The OTA’s ruling emphasized that only the first two sales could be exempt under current CDTFA regulations, while remaining sales were determined to be taxable. Nevertheless, the OTA’s decision also left potential pathways open for future taxpayers who can furnish appropriate documentation and evidence to support their exemption claims from the tax assessments.
The recent opinion from the attorney general, coupled with the OTA’s ruling, illustrates a transformative moment in California’s tax landscape, one where taxpayers may have a better chance to challenge and potentially influence tax regulations. Taxpayers are encouraged to ensure they maintain comprehensive documentation and carry out meticulous planning to substantiate any appeals they may pursue in light of these changes.
FAQ
What is the California Office of Tax Appeals (OTA)?
The California Office of Tax Appeals is a government body that handles taxpayer appeals regarding tax assessments and decisions made by California’s tax agencies.
What new powers has the OTA gained?
The OTA now has the authority to challenge regulations issued by state tax agencies if they conflict with existing tax statutes during taxpayer appeals.
What was the case involving Coast Dental Services, Inc.?
Coast Dental attempted to classify its sales as exempt occasional sales from sales tax, but the OTA ruled against them, confirming that the sales were taxable.
How can taxpayers benefit from the OTA’s expanded authority?
Taxpayers may have greater opportunities to challenge unfavorable regulations and potentially secure tax exemptions if they provide the necessary documentation and evidence during appeals.
Feature | Details |
---|---|
Authority Expansion | The OTA can challenge tax regulations from state agencies. |
Recent Ruling Impact | The OTA’s ruling on Coast Dental affirmed tax assessments and clarified exemption qualifications. |
Tax Exemption Criteria | Only specific transactions may qualify for tax exemptions under the occasional sale exemption. |
Documentation Importance | Taxpayers must provide sufficient evidence to support claims in appeals to the OTA. |
Deeper Dive: News & Info About This Topic
- National Law Review: California AG Confirms OTA Authority
- International Tax Review: California’s Office of Tax Appeals
- San Francisco Chronicle: Office Values Recover in Tax Appeals
- Grant Thornton: State and Local Tax News
- JD Supra: Putting Regulations to the Test
- Wikipedia: California Tax Appeals
- Google Search: California tax regulations
- Google Scholar: California Office of Tax Appeals
- Encyclopedia Britannica: Taxation
- Google News: California tax appeals

Author: STAFF HERE COSTA MESA WRITER
COSTA MESA STAFF WRITER The COSTA MESA STAFF WRITER represents the experienced team at HERECostaMesa.com, your go-to source for actionable local news and information in Costa Mesa, Orange County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the OC Fair, Concerts in the Park, and Fish Fry. Our coverage extends to key organizations like the Costa Mesa Chamber of Commerce and Boys & Girls Clubs of Central Orange Coast, plus leading businesses in retail, fashion, and technology that power the local economy such as Vans, Experian, and South Coast Plaza. As part of the broader HERE network, including HEREAnaheim.com, HEREBeverlyHills.com, HERECoronado.com, HEREHollywood.com, HEREHuntingtonBeach.com, HERELongBeach.com, HERELosAngeles.com, HEREMissionViejo.com, HERESanDiego.com, and HERESantaAna.com, we provide comprehensive, credible insights into California's dynamic landscape.