San Diego runs on exactly the businesses the CDTFA audits hardest: restaurants, bars, contractors, auto dealers, and border-adjacent retail. If your San Diego business drew a sales tax audit, the case will be decided by estimate methods and deadlines — and both can be managed.
We are a San Diego firm — our office is in Del Mar Heights — and the sales-tax side of our audit book is heavily local: hospitality operators from the beach towns to the Gaslamp, specialty contractors and pool builders working the county, and retailers whose cash ratios or vendor data tripped the CDTFA’s selection models. The defense playbook is statewide law — audit method challenges, the 30-day petition, Office of Tax Appeals practice — but the fact patterns are San Diego’s: tourist-season swings that wreck observation-test projections, military and cross-border customer mixes that complicate exemption documentation, and restaurant economics where a generic industry markup misses by a mile.
What a San Diego business should do with a CDTFA letter
Before the first phone call with the auditor, get the engagement letter and records request reviewed — the scope you accept and the interview you give in week one shape the whole audit. If the audit is over and a Notice of Determination is in hand, the 30-day petition window controls everything else. And if the business cannot pay a final bill, § 6829 personal exposure and permit-threatening collections are the next fights — both defensible, both time-sensitive.
Why local matters here
Candidly, for a pure records audit, geography is convenience. It starts mattering when the case does: appeals conferences, settlement posture, OTA hearings, and the sit-down-with-your-books work that goes faster at a conference table. We do that work from San Diego, for San Diego businesses, with the statewide practice behind it — 400+ audit clients represented since 2013.
How engagements work
Many matters like this one run as a monthly flat-fee engagement: one number, agreed up front, that covers the work — agency contact, deadlines, document responses, strategy — until the matter resolves. Shorter, well-defined projects are often a one-time flat fee instead, and some matters genuinely fit hourly billing better. We will tell you which you are looking at on the first call, before you commit to anything. If you want the details first, see how we price our work.
San Diego business under CDTFA audit?
Tell us where it stands. We respond within one business day.
The full statewide practice: California sales tax attorney · restaurant audits · all San Diego practice areas.
By Sam Brotman, JD, LLM, MBA — managing attorney, Brotman Law. CA Bar No. 274966. Last updated August 29, 2026.
