A single filing error carries a 75% fraud penalty.
The right CPA firm makes sure you never find that out.
Business owners lose an average of 33 working days a year to financial stress and avoidance. Audit triggers, 1099 mismatches, mixed expenses, and no tax planning compound silently until they explode. XOATAX is the CPA firm that neutralizes every one of these risks before they cost you money, time, or your professional license.
Response within 1 business day, guaranteed.
Common risks. All managed.
20% IRS Negligence Penalty
Inaccurate returns, missing documentation
Eliminated through accurate prep + proactive review
Audit Flag: 1099-NEC Mismatch
Income reported on 1099 differs from your return
Caught before filing, reconciled automatically
License Suspension Risk
Tax delinquency or evasion for licensed professionals
Compliance maintained, IRS issues handled before escalation
Mixed Personal & Business Expenses
One of the IRS's top audit triggers
Clean books enforced monthly, no gray areas left open
33 Days of Lost Productivity
Financial anxiety and bookkeeping avoidance
Handed off entirely. You focus on the business.
Kevin Zhang, CPA, Managing Partner
"We treat every client like our only client."
The Problems Most CPA Firms Avoid. We Solve Them Head-On.
Tax problems don't wait for a convenient time. Neither do we. Here is what we tackle every day for clients across California.
Wrong or Missing Paperwork
A mis-filed form, a forgotten schedule, or one wrong number can trigger audits, late fees, and compound interest. We catch it before the IRS does.
Scary IRS Letters
CP2000 notices, audit correspondence, penalty assessments. We respond on your behalf, negotiate with agents, and make the letters stop.
Legal Traps That Cripple Businesses
Misclassified workers, improper entity structure, and missed elections can cost more than your entire annual profit. We spot the traps before you step in them.
Year-End Surprises
Paying a massive tax bill you never planned for is avoidable. Our quarterly strategy sessions keep you in control all year long.
One Firm. Every Financial Problem Solved.
From the simplest tax return to a multi-year IRS dispute, our licensed CPAs and Enrolled Agents handle it all under one roof at rates that make sense.
Business & Individual Tax Preparation
Accurate returns for S-Corps, LLCs, partnerships, sole proprietors, and individuals. No shortcuts. No guesswork.
Proactive Tax Planning
Forward-looking strategy to reduce your effective tax rate: entity restructuring, retirement contributions, depreciation timing, and more.
IRS & State Tax Resolution
Penalty abatement, audit defense, offer-in-compromise, and payment plans. We handle the communication so you don't have to.
Amended Returns & Error Correction
Filed with the wrong numbers? We go back, correct it, and recover money left on the table. Or prevent a bigger problem from escalating.
Business Formation & Entity Strategy
LLC vs S-Corp vs C-Corp: the choice has massive tax implications. We help you pick the right structure from day one, or help you change course when needed.
Compliance & Legal Risk Mitigation
Sales tax nexus, payroll tax compliance, worker classification, and BOI filings. We keep you on the right side of every regulation.
Bookkeeping & Financial Reporting
Clean monthly financials you can actually act on. We reconcile your accounts so your numbers reflect reality.
CFO Advisory Services
Cash flow forecasting, KPI dashboards, and growth scenario planning. The kind of insight usually reserved for Fortune 500 companies.
You Work With Real CPAs. Not Assistants. Not a Call Center.
At most big CPA firms, you meet a partner once and hand off to junior staff. At XOATAX, you get a dedicated licensed CPA who knows your file, answers your messages, and gives you a real answer, not a template response.
- Dedicated expert assigned to your account on day one
- Direct email and phone access, no ticketing system
- Response to questions within 1 business day, guaranteed
- Annual strategy review + quarterly check-in calls included
- CPAs with experience across industries: real estate, healthcare, tech, construction, and more
Kevin Zhang, CPA
Managing Partner
Business Tax & Strategy
Alice Dao, CPA
Senior Tax Advisor
IRS Resolution & Audit Defense
Amy Nguyen, EA
Tax Specialist
Individual & Business Returns
Frances Dang, CPA
Accounting Lead
Bookkeeping & Compliance
Choose Your Expert to Get Started
You decide who handles your finances. Browse our team, pick the CPA who speaks to you, and get the conversation started on your terms.
Verified Partner
Licensed CPA #124592
Meet Your Partner
Expertise You Can Trust.
Personal Attention You Deserve.
"I founded XOA TAX with a simple mission: to provide small business owners and investors with the same level of sophisticated tax strategy typically reserved for the Fortune 500. We don't just file forms; we build financial engines that power your growth."
15+ Years Experience
Deep expertise in complex tax structures and IRS compliance.
Client-First Approach
Direct access to partners. No gatekeepers, just solutions.
Kevin Zhang
Founder & Managing Partner, XOA TAX
What Clients Say About Our CPA Firm
Real results from real businesses. No stock photos, no made-up quotes.
"I got an IRS audit letter and panicked. The XOATAX team took over the entire response. I didn't write a single word. The audit closed with zero adjustments."
Marcus T.
Owner, Construction LLC
"I had filed incorrectly for three years before I found them. They amended everything, recovered $27k in overpayments, and set us up the right way going forward."
Linda C.
Medical Practice Owner
"The best-priced CPA firm I've found for the level of service. I have a dedicated CPA I can actually call, not a call center. Saved six figures in taxes this year alone."
David R.
Real Estate Investor
Stop Waiting. Tax Problems Get Worse With Time.
Whether it is an IRS letter sitting on your desk or a business structure that is quietly leaking money, our CPA firm can resolve it. The sooner you reach out, the more options you have.
No commitment. No pressure. Just a CPA who listens and gives you a straight answer.
