How to Get Audit Penalties Abated with the CDTFA

If you've been audited by the California Department of Tax and Fee Administration (CDTFA) and received a hefty assessment, chances are that the final amount includes not just tax—but also penalties and interest.


The CDTFA is notorious for stacking penalties on top of already large sales tax debts. In many cases, penalties account for 20% to 50% of the total bill. But here’s what most business owners don’t know: you may be able to get those penalties reduced—or removed entirely.


At Boulanger CPA and Consulting PC, we focus on sales tax audit defense in California. We help businesses fight unfair CDTFA assessments and pursue penalty relief options that many taxpayers don’t even know exist.


WHAT PENALTIES DOES THE CDTFA ASSESS?


Common CDTFA penalties include:

Penalty Type Amount
Negligence Penalty 10% of tax due
Late Filing Penalty 10% of tax due
Late Payment Penalty 10% (plus monthly interest)
Failure to File Up to 25% of tax due
Fraud Penalty 25%–40% (plus risk of criminal referral)
Finality Penalty 10% additional if the audit becomes final without payment

WHEN CAN YOU REQUEST PENALTY ABATEMENT?


Penalty abatement can be requested:


Before the audit is final

After the audit assessment becomes final, through a relief request

As part of a settlement negotiation with CDTFA or during the appeals process

You’ll need to show that the penalty was inappropriate, excessive, or that you had reasonable cause for the underlying issue.


PENALTIES YOU  CAN’T REMOVE EASILY


Interest is generally not abatable (unless due to CDTFA delay)

Tax due is not removable unless you win at appeal or protest

Fraud penalties are extremely hard to remove unless the fraud allegation is dropped


VALID REASONS FOR PENALTY ABATEMENT


The CDTFA may grant relief if:


1. You Had Reasonable Cause


You made an honest mistake, had a system error, or relied on professional advice.


Examples:


Bookkeeper filed wrong return

POS system misreported sales

Pandemic-related business disruption

Inherited recordkeeping mess from a prior owner

2. You Acted in Good Faith


You filed returns or made payments late, but were not intentionally avoiding tax.


3. First-Time Offense


You have no prior audit history or have filed properly in the past.


4. Natural Disaster or Emergency


Fire, flood, medical emergency, or other events outside your control disrupted operations.


HOW TO FILE A CDTFA PENALTY ABATEMENT REQUEST


To request penalty relief, you can:


  1. Submit Form CDTFA-735 – Request for Relief from Penalty and Interest

  2. Include a detailed explanation of why the penalty should be removed

  3. Provide supporting documentation (emails, reports, contracts, system logs, etc.)

  4. Have a CPA or attorney submit the request on your behalf

The CDTFA may contact you for more information or issue a written response.


BONUS TIP: USE THE “RELIEF FROM FINALITY” TOOL IF NEEDED


If your audit has already gone final and you failed to respond in time, you may still be able to:


  • File a petition to reopen the case

  • Request relief from finality penalties under CDTFA's internal guidelines

We’ve used this successfully in cases where clients missed notices or were improperly served.


REAL EXAMPLE – PENALTY REDUCED FROM $42,000 TO $4,200


A client in Orange County was assessed nearly $130,000 in sales tax, penalties, and interest after a CDTFA audit. We challenged the 10% negligence penalty and proved that the discrepancy was due to a POS error. The CDTFA abated 90% of the penalty—saving the client over $37,000.


This type of case often requires negotiating a CDTFA audit balance with state officials, ensuring the outcome is manageable for the business owner.


LOCAL HELP WITH CDTFA PENALTY RELIEF


We’ve helped business owners in:


  • Orange

  • Santa Ana

  • Costa Mesa

  • Anaheim

  • Riverside

  • San Diego


…and throughout California. Many of these cases also involve overlapping issues like California FTB penalty relief options, which we evaluate alongside CDTFA strategies.


WANT TO REMOVE CDTFA AUDIT PENALTIES? LET’S TALK.


You don’t have to accept the CDTFA’s penalty numbers as final. Let us evaluate your case and file a strategic relief request on your behalf.


For more strategies and insights, you can always explore more in Defend What’s Yours, our resource hub for California business owners facing tough tax audits.

Frequently Asked Questions

What is penalty abatement with the CDTFA?

Penalty abatement is when the CDTFA reduces or removes penalties assessed during a sales tax audit if you can show reasonable cause for the errors.

What qualifies as reasonable cause for penalty relief?

Reasonable cause includes natural disasters, serious illness, reliance on incorrect professional advice, or circumstances outside your control.

Are penalties automatically waived if I explain my situation?

No. You must file a formal request with supporting documentation proving why penalties should be reduced or removed.

Can CDTFA penalties double my balance?

Yes. Penalties can quickly add up, sometimes doubling the sales tax liability if not challenged or reduced through abatement.

Does penalty abatement remove interest too?

No. Interest generally continues to accrue until the balance is paid, though penalty abatement reduces the overall cost.

Can I appeal if my penalty abatement request is denied?

Yes. You can appeal through the CDTFA or the Office of Tax Appeals if your initial abatement request is rejected.

Should I hire a CPA for CDTFA penalty abatement?

Yes. Professional representation ensures your abatement request is supported with the strongest documentation and defense strategy.

Man smiling, wearing a blue shirt and patterned tie. Orange border.

Marc Boulanger, CPA — California Sales Tax & CDTFA Audit Specialist


Marc is a CPA with many years of experience helping California business owners resolve complex sales tax and CDTFA audit matters. With formal training in accounting and a Master’s degree in Accounting, Marc combines technical precision with practical experience across industries such as restaurants, auto repair, retail, and multi-location franchises.


Outside of work, Marc enjoys traveling the country with his wife of 30 years and their five children. His approach to audit defense is built on clear communication, thorough analysis, and treating every client’s business as if it were his own.

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