Tax Litigation & Appeals in California
Tax disputes may require further administrative or court review. The next step depends on the tax involved, the notice issued and the remedy available. The choice of forum affects what must be filed, whether payment is required, and how the case will be developed. A strong substantive position still needs the correct procedural route.
RV Litigation Group PC evaluates tax litigation and appeal options for individuals and businesses. Our work begins with the notices and procedural history, then connects the disputed legal questions to the evidence needed for meaningful review.

Build the Case Around the Disputed Issues
Contracts, accounting records, payment evidence and witness testimony should explain the disputed transaction and expose gaps in either side’s account. Some matters require specialist financial analysis. Review prior submissions and concessions before developing a position that conflicts with the existing record.
Preparing evidence supports both settlement evaluation and trial. The practical question is what can be proved in the selected forum, under its procedures and review standard.
Review After a Decision Is a Separate Analysis
An adverse decision does not create the same appeal rights in every forum. The proceeding, entered decision, review standard and existing record determine the available challenge. An appeal is not simply a fresh opportunity to present different facts. California administrative review and a later court refund action are distinct routes, with payment and administrative prerequisites considered separately.
Choose the Route the Notice Actually Permits
A qualifying deficiency notice can open Tax Court review before payment. A federal refund suit follows administrative-claim, payment and timing requirements. The detailed rules below explain why an audit report, an IRS Appeals conference and a court proceeding are not interchangeable.
Collection review is another route: a timely Collection Due Process request can lead to administrative review and, where authorized, a Tax Court petition. Prior opportunities to dispute the tax can limit the issues. An equivalent hearing lacks the same judicial-review rights. See our collection appeals page.
Preserve the Issue as Well as the Filing
A timely filing must also present the correct party, periods and grounds. Counsel compares the administrative claim, agency determination and proposed court pleading to identify omissions, disputed facts and jurisdictional questions. Whether a ground can be amended or raised later depends on the governing procedure, so omitted grounds should be assessed promptly.
The choice of forum also affects available discovery, evidence, settlement procedure and further appellate review. Before agreeing to a disposition, review what it resolves, whether it affects related years or taxpayers, and which review rights remain.
After an IRS Notice of Deficiency
A qualifying deficiency notice can allow a taxpayer to petition the U.S. Tax Court without first paying the disputed deficiency. The usual period is 90 days after mailing, or 150 days for a qualifying notice addressed to a person outside the United States. The statutory weekend and District of Columbia holiday rules, the last date specified by the IRS and any applicable special rule must be checked against the actual notice.
Continued exchanges with the examiner do not substitute for the petition. Questions about late filing and equitable tolling are procedure- and forum-specific; do not assume that a rule from a collection case excuses a late deficiency petition. Counsel reviews the current controlling law along with the mailing and filing evidence.
Returns and receipts help counsel develop the merits, but are not all attachments to the initial petition. Follow the court’s instructions for the petition, notice, required forms and privacy protections. Interest on unpaid tax can continue, and a case involving one deficiency does not necessarily stop collection of other assessed years. See the Tax Court’s filing guidance.
Refund Litigation: Filing Time and Recoverable Payments
Federal income-tax refund litigation generally requires full payment and a proper administrative refund claim before suit in the appropriate federal district court or Court of Federal Claims. The administrative claim should identify each ground and the supporting facts using the applicable form and declaration. Payment requirements for divisible taxes need separate analysis; do not apply the income-tax rule mechanically to every payroll penalty.
The general claim-filing period is three years from filing the return or two years from payment, whichever expires later; a separate rule applies if no return was filed. Section 6511 also limits which payments can be recovered. A timely claim may still recover little or nothing if the payment falls outside the applicable lookback. Counsel checks the return, extensions, payments and claim dates together, including any special rules.
Suit generally cannot begin until six months after the claim unless the IRS acts sooner. The usual two-year suit limit follows certified or registered mailing of a disallowance notice; a filed waiver can start the period separately, and a valid written extension can matter. IRS reconsideration does not itself extend that limit. Claim deadlines and court deadlines must be evaluated independently. See section 6511 and section 6532.
FTB Appeals to the Office of Tax Appeals
OTA is an administrative body, not a California court. An ordinary FTB protest may lead to a Notice of Action, generally allowing a written OTA appeal within 30 days after mailing, with protection for the last filing date stated in the notice. Other FTB decisions can have different routes and deadlines.
The appeal identifies the taxpayer, contact information, periods, disputed changes, known disputed and conceded amounts, reasons and required signature. Explain how the documents support each issue. Sensitive identifiers required in a filing belong in that process or a secure exchange, not an open website form.
An oral hearing may be requested, or the appeal can be decided on the written record. OTA considers relevant evidence within its jurisdiction, subject to applicable privileges and evidentiary rules. Material disputed findings require evidence rather than only unsworn argument. This administrative process is distinct from later judicial appellate review of a decision. See OTA’s current rules and our California Tax Disputes page for the earlier protest stage.
Records That Help Us Evaluate the Matter
- Complete notices, administrative claims, determinations, decisions and proof of filing or mailing.
- Payment records and transcripts showing what was paid, for which period and how it was applied.
- A list of disputed adjustments with the documents and witnesses supporting each position.
- Existing court pleadings, orders, hearing dates and related state or federal proceedings.
Start an inquiry with the notice or allegation, your role and any stated deadline. Preserve complete originals; arrange an appropriate transfer method before sending sensitive financial records.
Fictional California Examples
These fictional examples illustrate issues counsel may evaluate. They are not firm cases or results. Locations identify the setting; they do not establish venue, a local legal rule or a firm office.
An individual receives a deficiency notice while exchanging documents with an examiner. Counsel separates the remaining discussion from the court petition, checks mailing and stated dates, and follows the court’s required filing and privacy instructions.
A business owner paid disputed federal income tax arising from an asset transaction. Counsel reviews payment and return dates, the refund grounds, applicable lookback, agency action and any waiver before assessing a court suit. A timely claim alone does not establish the amount recoverable.
An owner receives an FTB Notice of Action sustaining a transaction-related adjustment. Counsel identifies the disputed amounts and periods, explains what the transaction records establish, and evaluates an oral hearing or written-record decision. This is an administrative appeal with its own filing requirements.
How We Help
Evaluate the available remedy
We review the notice, tax type, payment history and procedural posture to identify the possible forum and required steps.
Develop a focused litigation plan
We identify the claims, evidentiary needs and key decisions rather than treating every disputed item as equally significant.
Assess resolution and review
We evaluate proposed settlement terms, hearing or trial preparation, and any further review in relation to the client’s objectives.
Legal and Agency Resources
These statutes, decisions and agency resources explain the legal framework discussed above. The appropriate response depends on the actual notice, procedural stage and facts.
- U.S. Tax Court: starting a case
- IRS Publication 556: examinations, appeals and refunds
- IRS TFRP refund guidance, IRM 8.25.1.7.4.2
- IRS collection appeal procedures
- FTB Publication 985: audit, protest and appeals
- 26 U.S.C. § 6213: deficiency petition requirements
- 26 U.S.C. § 6511: claim period and recovery limits
- 26 U.S.C. § 6532: refund suit periods
- 26 CFR § 301.6402-2: refund claim requirements
- OTA: current rules for tax appeals
Frequently Asked Questions
It depends on the forum and type of case. Qualifying Tax Court deficiency proceedings generally do not require advance payment of the disputed amount. Refund litigation involves different requirements. The notice, tax and procedural history must be reviewed before deciding which route is available.
Not necessarily. The Tax Court explains that interest generally continues on unpaid tax during a dispute. Payment, deposits and the particular procedural route can have different consequences, so the financial implications should be assessed alongside the litigation strategy.
No. Review rights depend on the forum, procedure and decision. Counsel should evaluate the available route, filing period, review standard and record promptly. Neither an agency discussion nor a desire to submit additional evidence should be assumed to preserve a right of appeal.
No. Tax Court jurisdiction depends on an authorized category of case and satisfaction of its filing requirements. Deficiency, collection and other proceedings have distinct rules. Counsel needs the actual notice and history.
No. A court action has separate jurisdiction, payment, exhaustion and filing requirements. An agency reconsideration request should not be assumed to extend a court deadline or preserve every refund claim.
