1. IRS Notices Establish the Available Response
An IRS notice identifies the tax period and procedural stage. Check its date and instructions before submitting records or challenging a debt.
Proposed Changes and Deficiency Notices
A CP2000 flags a return discrepancy and proposes an adjustment, but is neither a bill nor an audit. Examination letters may offer appeal rights. A statutory deficiency notice starts a separate Tax Court filing period under IRC §6213(a).
| IRS Document | Legal Stage | Response |
|---|---|---|
| CP2000 | Proposed adjustment | Reply by the stated date |
| Examination 30-day letter | Disputed audit findings | Generally 30 days to request Appeals review |
| Letter 3219 or 531 | Statutory deficiency notice | Generally 90 days to petition Tax Court, or 150 in qualifying overseas cases |
| LT11 or Letter 1058 | Proposed levy and CDP rights | Generally 30 days to request a hearing |
CP2000
- Legal StageProposed adjustment
- ResponseReply by the stated date
Examination 30-day letter
- Legal StageDisputed audit findings
- ResponseGenerally 30 days to request Appeals review
Letter 3219 or 531
- Legal StageStatutory deficiency notice
- ResponseGenerally 90 days to petition Tax Court, or 150 in qualifying overseas cases
LT11 or Letter 1058
- Legal StageProposed levy and CDP rights
- ResponseGenerally 30 days to request a hearing
An attorney handling IRS audit defense should distinguish an information request from a proposed assessment before drafting a response.
Assessed Debt and Collection Notices
An assessed debt can lead to a tax lien or levy. Under IRC §§6320 and 6330, qualifying lien and levy notices carry Collection Due Process (CDP) rights. A timely Form 12153 request may preserve judicial review, but a prior chance to contest the tax can limit the issues heard.
2. Legal Representation Depends on the Disputed Tax Issue
An IRS tax attorney reviews calculations, prepares protests, and negotiates payment arrangements. The work changes when the issue is collection rather than the amount assessed.
Reviewing Returns and Evidence during an Audit
Compare the return and IRS transcripts with source records. Bank deposits need not equal taxable sales. Loans, transfers, processor fees, and timing may explain differences.
A business tax lawyer can trace questioned figures to invoices, ledgers, and payment records. Unavailable documents should be identified rather than replaced with unsupported explanations.
Challenging Adjustments and Requesting Appeals Review
An IRS Appeals protest identifies disputed items, governing law, and evidence. Challenging an income classification differs from requesting installments on an assessed balance.
If a statutory deficiency notice arrives, negotiations do not by themselves extend the Tax Court petition deadline. A timely petition can permit judicial review before payment of the proposed deficiency.
Addressing Collections and Personal Liability
For assessed debt, an attorney can evaluate installment agreements, an Offer in Compromise, or temporary currently-not-collectible treatment. Eligibility depends on the taxpayer's compliance and financial condition.
Under IRC §6672, a person responsible for trust fund taxes who willfully fails to collect or pay them over may face personal liability. An ownership interest or job title alone does not establish responsibility and willfulness.
3. Federal and California Tax Matters Use Different Procedures
IRS notices concern federal tax law. California notices may concern income, franchise, sales, or use taxes. A federal response does not preserve a state protest.
Tax Court Filing and Trial Location
San Francisco is a U.S. Tax Court trial location. Petitions go to the court, not to a local IRS office. DAWSON electronic petitions must be filed by 11:59 p.m. Eastern time on the deadline.
An attorney evaluating tax disputes distinguishes IRS Appeals, Tax Court proceedings, and refund claims. Representation before the Tax Court requires admission to practice there.
California State Tax Protests
A California Franchise Tax Board Notice of Proposed Assessment generally allows 60 days to protest. An adverse Notice of Action may then carry a separate 30-day appeal period before the Office of Tax Appeals.
For many California Department of Tax and Fee Administration determinations, taxpayers generally must seek redetermination within 30 days after the notice is mailed. Some tax programs have different periods. Follow the agency-specific notice.
4. Practical Pitfalls Can Narrow Legal Options
An unsupported agreement or missed deadline may narrow legal options. Not every IRS letter is a final bill.
Agreeing before Checking the Evidence
Before agreeing to adjustments, match the proposed amounts to underlying transactions. An unexplained difference may involve a missing record, timing, or the legal classification of an otherwise documented payment.
Preserve originals, submitted copies, and delivery confirmations. Explain what each record supports.
Confusing Collection Relief with an Assessment Appeal
An installment agreement addresses payment, not necessarily whether the tax was correctly assessed. A CDP hearing also has limits when the taxpayer previously had an opportunity to challenge the amount owed.
Compare tax debt resolution options with actual income, expenses, and assets. An Offer in Compromise is not an automatic discount. Temporarily delayed collection does not erase the liability.
5. Frequently Asked Questions
How Much Does an IRS Tax Attorney Cost in California?
Fees depend on the disputed years, records, and type of proceeding. Some defined services use fixed fees. Extended audits or litigation may use hourly billing. Request an engagement agreement identifying scope, billing terms, and expenses.
Do Tax Attorneys Work for the IRS?
Some tax attorneys work for the government, but an independently retained attorney represents the taxpayer, not the IRS. Attorneys, qualified CPAs, and enrolled agents may represent taxpayers before the agency within their authorized scope. Form 2848 specifies the representative, tax matters, and periods.
Can an Attorney Outside San Jose Represent a Taxpayer?
Federal IRS representation generally does not require a local office. Check the representative's qualifications and authorization for the task. Tax Court representation requires separate admission to practice before that court.
11 Nov, 2026
