1. Tax Representation Depends on the Stage of the Dispute
A proposed adjustment, a final assessment, and a collection warning trigger different legal options. Legal review begins with the notice, named taxpayer, tax period, and response deadline.
Reporting Errors and Proposed Adjustments
Unreported income or an unsupported deduction may call for corrected returns and additional records. An audit requires a response to the agency's findings. An attorney can distinguish a calculation error from a disagreement about the law or the facts. The agency may still require a formal answer even after figures are corrected.
Assessed Debt and Individual Exposure
After assessment, the issue may shift to liens, levies, or payment terms. A corporate tax balance does not automatically make an officer liable. Under 26 U.S.C. § 6672, federal trust fund tax liability depends on responsibility and willful failure to collect, account for, or pay over the tax. The business tax attorney analysis examines those requirements.
2. Each Taxing Agency Has Its Own Appeal Procedure
Federal, state, and local agencies do not share a single appeal process. The notice identifies the applicable procedure, while a filing with one agency generally does not replace another agency's required filing.
IRS Deficiency Notices and Federal Court Review
A statutory notice of deficiency generally allows 90 days to petition the U.S. Tax Court without first paying the disputed deficiency. The period is 150 days in certain cases involving taxpayers outside the United States. The petition goes to the court, not the IRS office issuing the notice. Although the court holds trials in Los Angeles, electronic petitions generally must reach its DAWSON system by 11:59 p.m. Eastern Time on the due date. An IRS mailing address is not a substitute filing destination. See tax controversy proceedings for federal litigation procedures.
FTB Protests and CDTFA Petitions
The Franchise Tax Board generally allows 60 days from a Notice of Proposed Assessment to protest, then 30 days from an adverse Notice of Action to appeal to California's Office of Tax Appeals. A standard CDTFA Notice of Determination generally allows 30 days to petition for redetermination. A jeopardy notice may impose a 10-day deadline and additional conditions. Check the actual notice before filing. An IRS resolution also does not replace a separate California protest when a state adjustment is issued.
Los Angeles City Business Tax Hearings
Under Los Angeles Municipal Code § 21.16, a city tax assessment generally allows 45 days after service to request a hearing in writing from the Director of Finance. The request must state the grounds for disagreement. Following an Assessment Review Officer's decision, further Board of Review procedures depend on rules established under the city's 2025 amendment. A second hearing is not automatically available. For mailed assessments, service under the Code occurs when the city deposits the notice in the mail, not when the taxpayer reads it.
County Property Assessment Appeals
County property assessments have a separate route. Regular assessment appeals generally run from July 2 through November 30. Supplemental assessments usually have a 60-day filing period linked to the notice or bill. An assessment appeal does not suspend property tax payment obligations. Bills must still be paid by their due dates to avoid penalties while an appeal is pending.
3. Case Preparation Connects Evidence to the Disputed Rule
The central question is which adjustment is wrong and why. An attorney can compare the agency's findings with supporting records, identify the controlling rule, and select a remedy available at that stage.
Reconcile Returns, Payments, and Agency Findings
Account transcripts, bank records, invoices, payroll reports, and audit worksheets answer different questions. A bank deposit may be a loan or transfer rather than taxable receipts. A deduction needs records of the expense. For sales tax, reconcile gross receipts with taxable sales and exclusions. Keep the original documents and submission records.
Confirm the Taxpayer and Scope of Representation
A notice against a corporation is not the same as a notice against its owner. Check the legal entity, identification number, tax year, and stated basis of liability. IRS Form 2848 specifies the representative, covered tax matters, and periods. California agencies have separate authorization procedures. A power of attorney does not replace a timely protest or petition.
Match the Remedy to the Actual Problem
An appeal challenges liability; a collection proposal addresses payment of an assessed balance. Depending on the case, an attorney may draft a protest, present evidence at a hearing, negotiate, or file court papers. If the amount is accepted but payment is difficult, financial statements may support collection alternatives. The tax debt resolution page examines federal options.
4. Practical Pitfalls Can Eliminate Useful Options
A sound tax argument may still fail because of a missed filing or an unsuitable response. The taxpayer should separate appeal deadlines, collection issues, and disclosure risks.
Amended Returns Do Not Replace Formal Appeals
An amended return does not ordinarily satisfy the filing requirements for an FTB protest, CDTFA petition, or Tax Court case. Informal discussions rarely extend statutory deadlines. Retain dated copies and proof of delivery. Once a deadline expires, a refund claim or other route may remain, but it requires separate eligibility analysis.
Payment Arrangements Do Not Resolve Every Dispute
An installment agreement does not settle whether the assessment was correct or bind another tax authority. Certain IRS lien or levy notices provide Collection Due Process rights, generally requiring a hearing request within 30 days. The notice determines those rights, and a payment proposal does not automatically preserve them.
Audit Disclosures May Raise Separate Risks
A tax disagreement does not itself establish fraud. Allegations of intentionally false returns or concealed income may require criminal tax advice before interviews or disclosures. Accountant communications are not automatically privileged. Under 26 U.S.C. § 7525, some tax-practitioner communications receive limited protection in noncriminal federal matters. See criminal tax defense for distinct criminal concerns.
11 Nov, 2026
