A boutique firm.
An institutional mindset.
Vertex Tax Advisory was founded in Laguna Beach to give private clients and owner-operated businesses the same caliber of strategic tax counsel that public companies and family offices enjoy — without the bureaucracy.
Engineering tax outcomes,
not preparing returns.
For decades, sophisticated tax planning has been gated to enterprises with seven-figure in-house finance teams. We built Vertex on the conviction that the same modeling, planning, and audit-defense rigor should be accessible to every serious operator.
Our advisors come from Big-Four practices, IRS leadership, and family-office strategy desks. We pair that pedigree with a flat-fee, advisory-first model so the relationship rewards proactivity — not billable hours.
Headquartered in Laguna Beach, California; licensed and serving clients across all 50 states.
Three principles. Zero exceptions.
Precision
Every dollar of tax saved is engineered, not accidental. We model scenarios, stress-test elections, and document every position with audit-grade rigor.
Transparency
Flat-fee pricing, scoped engagement letters, and a quarterly written outlook. You always know what we're doing, what it costs, and what comes next.
Partnership
We work the way the best in-house finance teams work — embedded, proactive, and accountable to outcomes you can measure.
Our journey so far.
Vertex is founded
Laguna Beach office opens with a mission to bring institutional-grade tax strategy to private clients.
Multi-state expansion
Licensed across all 50 states. Practice grows to 240+ active clients with a 98% retention rate.
Recognition
Featured in regional accounting press for our advisory-first model and proprietary planning framework.
Advisory platform launch
Rolled out our quarterly strategy program — proactive planning replaces reactive filing.
Meet your advisors.
Credentialed CPAs, Enrolled Agents, and tax strategists with backgrounds spanning Big Four firms, the IRS, and family-office practices.
Jonathan Mercer, CPA
Founding Partner
15+ years across Big-Four tax advisory and family-office strategy. Specializes in entity structuring and exit planning.
Anika Patel, EA
Director of IRS Resolution
Former IRS revenue officer turned client advocate. Has resolved 600+ collection and audit cases without litigation.
Daniel Reyes, CPA
Senior Tax Strategist
Real estate, construction, and cost-segregation expert. Authored two industry whitepapers on §1031 and bonus depreciation.
Sophia Kim, MST
Manager, Business Tax
Multi-state nexus and SaaS specialist. Leads R&D credit studies and quarterly compliance for our growth-stage clients.
Ready to work together?
Schedule a complimentary 30-minute strategy session and we'll show you exactly what proactive tax planning could mean for you.
Book Your Strategy Session