CDTFA vs IRS: Which Is Worse for California Business Owners?

Marc Boulanger • June 23, 2025

CDTFA vs IRS: Which Is Worse for California Business Owners?

A man in a suit is looking at a building with the words cdtfa vs irs navigating tax nightmares

If you’ve been hit with a tax notice, audit, or collections action in California, it might not be the IRS knocking—it could be the California Department of Tax and Fee Administration (CDTFA). And if you’ve tangled with both, you already know: one isn’t necessarily easier than the other.


The IRS and CDTFA are two powerful taxing authorities, but they operate very differently. One focuses on federal income and payroll taxes. The other enforces California’s sales, use, and excise tax laws—and they’re often more aggressive, less flexible, and more confusing.


At Boulanger CPA and Consulting PC, we represent business owners dealing with both agencies, especially those in Orange County and Southern California. In this article, we’ll break down:


  • The key differences between CDTFA and IRS audits
  • Why CDTFA audits often hit harder and faster
  • How each agency enforces collections
  • What you need to know if you’re facing either—or both

What Is the CDTFA?

The California Department of Tax and Fee Administration (CDTFA) is California’s primary tax enforcement agency for:


  • Sales and use tax

  • Excise taxes (alcohol, tobacco, fuel, cannabis)

  • Environmental fees

  • And increasingly, collection of debts referred by the EDD

It replaced the former Board of Equalization (BOE) in 2017 and now handles billions in annual collections from California businesses.

What Is the IRS?

The Internal Revenue Service (IRS) is the federal agency responsible for:


  • Federal income taxes

  • Payroll tax enforcement

  • Self-employment tax

  • Corporate and partnership filings

  • Taxpayer identification and penalty administration

If you don’t file or pay federal taxes properly, the IRS is the agency that will pursue you.


IRS vs CDTFA – How Audits Differ

Audit Area CDTFA IRS
Scope Sales, use, and excise taxes Income, payroll, and federal excise
Audit Trigger Industry risk, return anomalies, unfiled returns Return discrepancies, underreported income, late filings
Methodology Statistical sampling, markup testing, POS reviews Document-based analysis, income verification
Auditor Tone Often aggressive and inflexible Often aggressive and inflexible Usually professional but slow and thorough
Audit Period Usually 3 years; up to 8 for fraud 3 years; up to 6+ for substantial understatement
Common Target Restaurants, retail, contractors, e-commerce All business types; high-income earners; cash businesses


CDTFA: Why It Can Be More Dangerous Than the IRS

While the IRS carries significant authority, CDTFA audits often feel more severe—especially for small business owners. Here's why:


1. CDTFA Uses Estimates and Extrapolation


If your records are incomplete, the auditor will estimate your sales, apply markup formulas, and extrapolate your liability across the audit period. This can result in massive overassessments.



2. CDTFA Has Less Flexibility


Unlike the IRS, the CDTFA doesn’t offer streamlined installment agreements or easy abatement of penalties. Their appeals process is narrow, and their audit findings are tough to overturn.


3. CDTFA Auditors Are Often Industry-Specific


CDTFA auditors are trained by industry—meaning your restaurant or retail business may be audited by someone who knows exactly what to look for.


4. Collections Start Quickly


The CDTFA is fast to levy bank accounts, file liens, and escalate enforcement—sometimes without much warning.


IRS: What Makes Federal Enforcement Serious

The IRS isn’t easygoing, either. It tends to be:


  • Slow but methodical — IRS audits take months but are deeply detailed

  • Penalty-heavy — Late-filing and accuracy penalties add up quickly

  • Dangerous for payroll noncompliance — If you withheld payroll taxes and didn’t pay them, the Trust Fund Recovery Penalty (TFRP) can be personally assessed against you

  • Backed by criminal enforcement — In extreme cases, the IRS can refer for prosecution

Which Is Worse? It Depends on Your Case

If you’ve underreported cash sales or haven’t properly collected sales tax, a CDTFA audit can financially crush you—especially if your documentation is weak.



If you’re behind on income tax or payroll deposits, the IRS can levy your income, seize assets, and even go after you personally—particularly if trust fund taxes are involved.

We Defend Against Both

At Boulanger CPA and Consulting PC, we’ve handled:


  • CDTFA audits of restaurants, retail stores, e-commerce sellers, and trades

  • IRS income tax audits, payroll tax issues, and revenue officer enforcement

  • Multi-agency cases involving FTB, EDD, CDTFA, and the IRS

We know how each agency thinks—and how to protect you from the worst-case scenario.


Serving Orange County and California Statewide

We defend businesses in:


Facing CDTFA or IRS Problems? Get Help Now.

Don’t wait until one (or both) agencies start levying your accounts. We’ll build a strategy and protect your business from aggressive tax enforcement.


📞 Call  (657) 218-5700 or Schedule Your Confidential Consultation


Frequently Asked Questions

Is the CDTFA more aggressive than the IRS?

In many cases, yes. The CDTFA often uses estimates and sampling methods to assess sales tax, which can result in inflated liabilities if records are incomplete. The IRS may be broader in scope but can be more flexible in resolution options.

What makes a CDTFA audit riskier for small businesses?

CDTFA audits often target high-risk industries like restaurants and retailers, and they apply rigid markup formulas. If your POS data doesn’t match deposits or purchase records, they may assume underreporting—even if it's not intentional.

Can the CDTFA assess tax without full documentation?

Yes. If records are missing, the CDTFA can issue a determination based on estimates, industry benchmarks, or reconstructed sales—which usually favors the agency’s numbers over yours.

Is it easier to settle with the IRS or the CDTFA?

The IRS has more structured resolution programs, like Offers in Compromise and installment plans. CDTFA settlements are stricter and usually require business closure or extreme financial hardship.

Should I hire a CPA for a CDTFA or IRS audit?

Yes. A CPA can help defend your position, respond strategically, and reduce your audit exposure—whether you’re dealing with the CDTFA or the IRS. Each agency has unique procedures and risk factors.


Other articles of interest


📣 About the Author


Marc Boulanger, CPA
 is the founder of Boulanger CPA and Consulting PC, a boutique tax resolution firm based in Orange County, California and trusted by high-income individuals and business owners across Southern California.


He is the author of Defend What’s Yours: A California Taxpayer’s Guide to Beating the IRS and FTB at Their Own Game, available now on Amazon. The book offers a step-by-step plan for resolving IRS and FTB tax debt without losing your business, your home, or your peace of mind.


With over a decade of experience resolving high-stakes IRS and State tax matters, Marc brings strategic insight to complex cases involving wage garnishments, bank levies, unfiled returns, and six-figure tax debts. He is known for helping clients reduce or eliminate tax liabilities through expertly negotiated settlements and compliance plans.


Marc is a Certified Public Accountant licensed in California and Oklahoma and holds the designation of Certified Tax Representation Consultant. He is a member of the American Society of Tax Problem Solvers (ASTPS) — the national organization founded by the educators and practitioners who have trained thousands of CPAs, EAs, and tax attorneys in IRS representation strategy.


Every case is handled with discretion, proven methodology, and direct CPA-led representation — not call center scripts.


📍 Learn more at www.orangecounty.cpa or call (657) 218-5700.


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