California Audit Defense Lawyer: 5 Facts No One Has Told You

What a California Audit Defense Lawyer Actually Does (And When You Need One)

If you’ve just received an audit notice, a California audit defense lawyer is the professional you want in your corner — not your original tax preparer, and not yourself.

Here’s a quick answer to what they do and when to call one:

Situation	Do You Need a California Audit Defense Lawyer?
Received an IRS or FTB audit notice	Yes — immediately
Audit involves unreported income or large discrepancies	Yes — high priority
You have foreign accounts or offshore assets	Yes — criminal risk is real
Audit is a simple correspondence letter about one item	Possibly — consult first
You owe additional taxes after an audit and can’t pay	Yes — settlement options exist

The IRS estimates a $441 billion annual tax gap, with 80% of that coming from underreported income. That’s why IRS audit rates are climbing — especially for high earners, businesses, and anyone with complex returns. And California’s Franchise Tax Board (FTB) runs its own parallel audit process, auditing roughly 1% of all state returns filed each year.

Getting audited doesn’t mean you’ve done something wrong. But how you respond determines everything.

An unrepresented taxpayer can accidentally hand auditors far more than they asked for — widening the scope, creating new liability, or worse, triggering a criminal referral.

I’m Attorney Samuel Landis, a tax attorney with an LL.M. in Taxation from Boston University and over 15 years of experience resolving high-stakes IRS and state tax controversies — including the eggshell audits and criminal referral cases that define the most serious end of California audit defense lawyer work. At Segal, Cohen & Landis, we handle these matters every day, and the five facts below are things most taxpayers don’t learn until it’s too late.

California audit defense lawyer vocab to learn:

Fact 1: Standard Audits vs. Eggshell Audits (And Why Hiring a California Audit Defense Lawyer is Your Best Shield)

Most taxpayers assume every IRS or state tax examination is a standard review of receipts and bank statements. However, tax professionals categorize audits into two very different baskets: standard audits and eggshell audits.

A standard audit is a routine verification of a return. An eggshell audit is a civil examination where the return contains material misstatements, unrecorded cash income, or false deductions, but the auditor is not yet aware of them. You are “walking on eggshells” because any wrong move, misstatement, or poorly chosen word could crack the surface, leading the auditor to refer the case to the IRS Criminal Investigation Division (IRS-CI).

Under Internal Revenue Code (IRC) Section 6663, if any part of an underpayment is due to fraud, the IRS can impose a civil fraud penalty equal to 75% of the underpayment. Worse, if the auditor suspects willful tax evasion, they are trained to quietly build a case and refer it for criminal prosecution. In 2022, the IRS Criminal Investigation Division referred 1,837 cases for prosecution, boasting a staggering 90.6% conviction rate.

This is where the risk of using your original tax return preparer during an audit becomes a major liability. Many taxpayers naturally turn to their CPA or tax preparer when the IRS comes knocking. However, this creates a severe conflict of interest:

The Preparer’s Defense: The preparer’s primary goal is often to defend their own work and reputation. If there is an error or omission, they may blame you to protect themselves.
Lack of Privilege: Unlike the absolute attorney-client privilege, there is no criminal privilege for tax preparers. If the IRS launches a criminal investigation, your CPA or tax preparer can be subpoenaed and forced to testify against you.

By hiring a dual-licensed tax attorney and CPA, or a specialized California audit defense lawyer, you gain the protection of attorney-client privilege. If accounting reconstruction or financial analysis is required, we utilize a Kovel agreement (derived from the landmark case United States v. Kovel). A Kovel agreement allows us to hire an accountant to perform forensic analysis under our direct supervision, extending our attorney-client privilege to their work.

If you are facing a highly sensitive audit, securing professional representation is critical. For more on preparing your defense, read our IRS Audit Defense Complete Guide and learn about our dedicated IRS Audit Defense Lawyer services. For a complete breakdown of representation options, see our IRS Audit Representation Complete Guide.

Fact 2: The IRS and California FTB Have Different Audit Triggers and Timelines

Understanding why you were selected for an audit is key to building a strong defense. The IRS and the California Franchise Tax Board (FTB) use highly sophisticated automated systems to screen tax returns.

The IRS relies on a computerized algorithm called the Discriminant Information Function (DIF) score. Every return is assigned a DIF score; a high score indicates a high probability of underreported income or overstated deductions. Additionally, the IRS uses information matching to flag mismatches between your return and third-party reports, such as W-2s, 1099s, and merchant card processing statements.

Common audit triggers include:

High-income levels (the IRS audits individuals earning over $1 million at a rate of 8.5%, compared to just 0.6% for those earning between $200,000 and $500,000).
Offshore assets and foreign bank accounts (FBAR compliance).
Operating cash-heavy businesses or claiming large, uncharacteristic business losses.
High net worth initiatives, such as the IRS “Wealth Squad” targeting complex partnerships. In fact, the IRS plans to increase audits of partnerships with assets over $10 billion, targeting 75 of the largest partnerships.

The California Franchise Tax Board operates independently, auditing approximately 1% of all state tax returns each year. The FTB often initiates a California FTB Audit based on “piggyback” audits (when the IRS audits you, they share the results with California, which automatically issues a state assessment) or residency disputes. High-income individuals who claim to have moved out of California to tax-friendly states like Nevada, Texas, or Florida but maintain home or business ties in California are prime targets for residency audits.

How a California Audit Defense Lawyer Navigates State and Federal Look-Back Periods

The timelines for audits differ significantly between federal and state authorities.

IRS Statute of Limitations: The standard look-back period for an IRS audit is three years from the date the return was filed or its due date, whichever is later.
FTB Statute of Limitations: California law gives the FTB a standard look-back period of four years to assess additional tax.

However, these windows can be extended under specific circumstances:

Substantial Understatement: If you omit more than 25% of your gross income, the look-back period extends to six years for both the IRS and the FTB.
Fraud or Failure to File: If you file a fraudulent return or fail to file a return entirely, there is no statute of limitations. The tax authorities can audit you indefinitely.
Federal-State Conformity: If the IRS adjusts your federal return, you are legally required to report those changes to the FTB within six months. If you fail to do so, California’s statute of limitations remains open indefinitely.

Navigating these overlapping timelines requires the strategic eye of a seasoned Los Angeles Tax Attorney who can prevent state and federal agencies from expanding their investigations.

Fact 3: Your Audit Type and Immediate Response Strategy

Not all audits are conducted in the same manner. The IRS and California agencies utilize three distinct types of audits. How you prepare and respond depends entirely on which notice you receive.

Audit Type	Description	Risk Level	Best Defense Strategy
Correspondence Audit	Conducted entirely by mail. The IRS or FTB requests documentation for a specific, limited item (e.g., charity receipts).	Low	Provide clean, organized documentation directly addressing the request. Do not volunteer extra information.
Office Audit	Conducted in person at a local IRS or FTB office. Usually focuses on small businesses or sole proprietorships.	Medium	Have your attorney represent you. Do not attend the meeting yourself to avoid answering off-the-cuff questions.
Field Audit	Conducted at your home, business location, or representative’s office. Broadest and most comprehensive type of audit.	High	Never hold a field audit at your place of business. Have your attorney host the auditor at their office to control access to records.

Immediate Steps to Take After Receiving an Audit Notice

If you receive an audit letter or an Information Document Request (IDR), do not panic, but do not delay. Take the following steps immediately:

Do Not Contact the Auditor Directly: Anything you say can and will be used to expand the audit.
Preserve Your Documents: Gather all bank statements, invoices, receipts, and general ledgers. Never destroy or alter records after receiving a notice, as this constitutes criminal obstruction.
Review Deadlines: Audit notices have strict response deadlines. Missing them can lead to arbitrary tax assessments.
Partner with a Professional: Contact a legal team experienced in tax controversy.

For detailed tactical advice, review our IRS Audit Defense Strategies and consult our Audited in LA: Step-by-Step Guide.

Fact 4: You Can Appeal Audit Findings and Settle Outstanding Liabilities

If your audit concludes and you disagree with the auditor’s proposed adjustments, you do not have to accept their findings. You have the right to appeal.

At the federal level, you can request a review with the IRS Office of Appeals, an independent body designed to resolve tax disputes without litigation. If you cannot reach an agreement there, you can file a petition in the U.S. Tax Court within 90 days of receiving a Notice of Deficiency. If you need help deciding on your next steps, read our guide on What to Do When You Disagree with an IRS Audit.

In California, the appeal process involves distinct administrative levels:

FTB Protest Division: You must file a written protest within 60 days of receiving a Notice of Proposed Assessment (NPA).
Office of Tax Appeals (OTA): If the Protest Division rules against you, you can appeal to the OTA, which holds hearings before a panel of administrative law judges.
California Superior Court: To challenge an OTA decision in court, California is a “pay-to-play” state—meaning you must pay the tax assessment first and then sue for a refund.

Settle Outstanding Liabilities When You Cannot Pay

If the audit results in a tax liability that you cannot afford to pay, there are several federal and state resolution options available:

Offer in Compromise (OIC): A settlement that allows qualified taxpayers to resolve their tax liability for a fraction of what they owe based on their ability to pay.
Installment Agreement: A structured monthly payment plan tailored to your financial situation.
Currently Not Collectible (CNC): If paying your tax debt would cause immediate financial hardship, the IRS can temporarily pause all active collection efforts.

Frequently Asked Questions About California Tax Audits

What is the role of a California audit defense lawyer during a CDTFA sales tax audit?

The California Department of Tax and Fee Administration (CDTFA) administers state sales and use taxes. During a CDTFA sales tax audit, auditors frequently use aggressive estimation techniques, such as markup audits, sampling, and credit card ratio tests. If these methods are unchallenged, they can result in massive, artificially inflated tax bills.

A California audit defense lawyer will step in to manage all communications, challenge the auditor’s sampling methodologies, reconstruct missing records, and protect your business’s financial interests. To learn more about professional representation, see our guide on IRS Audit Representation.

Can the EDD audit my business for worker classification?

Yes. The California Employment Development Department (EDD) frequently conducts payroll tax audits focusing on worker classification. Under California’s strict AB 5 “ABC test,” the state presumes most workers are employees rather than independent contractors.

If the EDD reclassifies your independent contractors as employees, you could face massive assessments for unpaid payroll taxes, interest, and steep penalties. An audit defense lawyer can help construct a defense showing compliance with California’s complex labor laws. For defense tips, check out our IRS Audit Defense Strategies.

What happens if I ignore an IRS or FTB audit notice?

Ignoring an audit notice is the single worst action you can take. If you do not respond, the taxing authority will issue an arbitrary assessment, calculating your tax liability without any of your deductions or exemptions. This results in the maximum possible tax bill.

Once the assessment becomes final, the IRS and state of California can initiate aggressive collection actions, including filing a federal or state tax lien against your property, issuing a tax levy to seize your bank accounts, or issuing a wage garnishment to take a portion of your paycheck. Read our Tax Attorney Los Angeles CA Tips to understand your rights and prevent these severe consequences.

Conclusion

Facing an audit from the IRS, FTB, CDTFA, or EDD can feel overwhelming, but you do not have to go through it alone. At Segal, Cohen & Landis, we have spent over 33 years resolving complex tax controversies for more than 25,000 satisfied clients.

Whether you are navigating an eggshell audit, fighting a residency dispute, or seeking relief from back taxes, our experienced team of Los Angeles tax lawyers is ready to defend your rights. Contact us today to secure your financial peace of mind, and explore our comprehensive California State Tax Resolution Services to learn how we can protect you.