The California Office of Tax Appeals (OTA) is the independent agency that decides disputes with the Franchise Tax Board and the California Department of Tax and Fee Administration. If your FTB protest ended in a Notice of Action you disagree with, an OTA appeal is usually the next step, and it is filed on a short deadline.
If you are holding a Notice of Action or a denied refund claim right now, call (415) 754-0115 to schedule your free consultation, or reach out through our contact page, so the appeal window does not close while you are still deciding.
What the California Office of Tax Appeals is, and why it exists
For decades, California tax appeals went to the elected Board of Equalization. Legislation passed in 2017 moved that job to a new, separate body: the Office of Tax Appeals. Its cases are heard by administrative law judges rather than elected officials, and the office is not part of the FTB or CDTFA. That independence matters. When you protested an assessment to the FTB, the same agency that proposed the tax reviewed its own work. At OTA, a neutral panel looks at both sides.
Which disputes OTA hears
- Personal income tax and corporate franchise tax assessments after an FTB protest is denied.
- FTB refund claims that were denied, or that the FTB did not act on within the time the law allows.
- Sales and use tax and many special tax and fee matters decided by the CDTFA.
OTA does not handle IRS matters. Federal audit disputes go to the IRS Independent Office of Appeals or the U.S. Tax Court, which we explain in our guide to the IRS audit appeals process.
How a case reaches OTA
Most FTB disputes follow a predictable path. An audit or a data match produces a Notice of Proposed Assessment. You have a limited time to file a written protest, which is reviewed inside the FTB. If the protest is denied in whole or in part, the FTB issues a Notice of Action. That notice is the trigger for an appeal. We walk through the earlier protest stage in our article on the FTB Notice of Proposed Assessment.
The deadline on a Notice of Action
For a typical FTB income tax deficiency, the appeal generally must be filed within 30 days of the date on the Notice of Action. The date printed on the notice controls, not the day you opened the envelope. Missing the window usually means the assessment becomes final, leaving you with a pay-first refund route that is slower and narrower. Refund-claim appeals and CDTFA matters have their own timing rules, so read the notice carefully and confirm the deadline for your type of case.
Filing the appeal and the briefing stage
An appeal starts with a written request to OTA that identifies the taxpayer, the tax years, the notice being appealed, and the reasons you disagree. A copy of the Notice of Action should be included. OTA then opens a case and sets a briefing schedule.
What happens during briefing
The FTB or CDTFA files its own brief explaining why the assessment is correct. You can reply. This stage carries real weight, because the panel decides on the written record plus whatever is presented at the hearing. A strong brief usually does three things:
- States the legal issue precisely, such as residency, sourcing of income, a disallowed deduction, or penalty relief.
- Ties every factual claim to a document: leases, pay records, bank statements, travel logs, contracts.
- Addresses the agency's own arguments rather than repeating the protest letter.
Residency cases deserve extra care
Some of the most fact-heavy FTB disputes turn on whether someone was a California resident during a move in or out of the state. These cases depend on a mix of facts, including where you lived, worked, banked, voted, kept a home and spent your time. Gathering that evidence before the briefing deadline is far easier than reconstructing it later.
The OTA hearing
Either side may request an oral hearing. Hearings are typically held before a panel of three administrative law judges, and OTA has offered both in-person and virtual hearings. The setting is less formal than a courtroom, but it is still an adversarial proceeding: the agency is represented, the judges ask pointed questions, and the record is closed afterward. You may represent yourself or be represented by an attorney or another authorized representative.
After the hearing, the panel issues a written opinion. Either party may ask for a rehearing on limited grounds within a short window. If the opinion goes against a taxpayer and is not reheard, the taxpayer may be able to pursue a refund suit in superior court, which generally requires paying the tax first.
Settlement while an appeal is pending
Filing with OTA does not end the conversation with the agency. The FTB has a settlement program, and some disputes resolve once the agency sees how the appeal will be presented. A settlement is a negotiated outcome, so its terms depend on the issues, the evidence, and the strength of each side's position. Collection on a properly appealed income tax deficiency is generally held off while the appeal is pending, although interest continues to accrue.
How our office helps with OTA appeals
The Somal Law Firm handles tax audits and appeals for individuals and small businesses in Pleasanton, Dublin, Livermore, San Ramon, Danville and across Alameda and Contra Costa Counties. Attorney Bob Somal can review the Notice of Action, confirm the deadline, identify what the record is missing, and prepare the appeal and briefs. You can read more about our tax dispute and appeals practice, including how it fits with IRS matters that often run alongside a state case.
Frequently asked questions
Do I have to protest to the FTB before appealing to OTA?
For a proposed deficiency, generally yes. The protest is the step that produces the Notice of Action, and the Notice of Action is what you appeal. Refund claims follow a different path, where a denial or a lack of response can open the door to OTA.
Can I bring new evidence to the Office of Tax Appeals?
Generally, documents that were not part of the protest can be submitted with your briefs, subject to OTA's rules and briefing schedule. The panel decides based on the full record, so organized, well-explained evidence often matters more than anything said at the hearing.
Does an OTA appeal stop FTB collection?
For a timely appealed income tax deficiency, the amount in dispute generally does not become collectible until the appeal ends. Interest keeps running, which is one reason some taxpayers consider paying and converting the matter into a refund claim. An attorney can review which approach fits your situation.
Are OTA opinions public?
Yes. OTA publishes its opinions, which is helpful for researching how similar issues have been decided. Taxpayer details in those opinions are handled under the office's rules.
A Notice of Action is not the end of the road, but the clock on it is short. Call (415) 754-0115 to schedule your free consultation with The Somal Law Firm, or send a message through our contact page. We will look at your notices, explain the appeal options in plain terms, and tell you what documents to bring.
Attorney Advertising. This article is general legal information for Bay Area residents, not legal advice, and does not create an attorney–client relationship. Every situation is different — please consult a licensed attorney about your specific circumstances.