IRS letter or FTB notice in Anaheim? Start here.

Top 6 Tax & IRS Lawyers in Anaheim, CA

California has both the IRS and one of the most aggressive state tax agencies in the country — the Franchise Tax Board — and Orange County residents routinely face both at once. These 6 Anaheim-area tax attorneys handle audit defense, collection disputes, offers in compromise, and the planning work that keeps the next problem from happening.

These 6 firms handle IRS audit defense, Franchise Tax Board controversies, offers in compromise, tax-debt resolution, and tax planning across the Anaheim metro and California — from single filings and one-off matters to complex commercial transactions and litigation.

How we picked these 6: We cross-referenced peer-reviewed rankings (Best Lawyers, Super Lawyers, Chambers USA, Best Law Firms), Avvo and Justia client review patterns, state bar specialization listings, and published case results. Firms that appeared consistently across at least two independent directories made the list. We do not accept payment for placement and we do not write sponsored reviews. More on our methodology →

1

The Tax Law Office of Jayson M. Aquino

Anaheim solo / boutique Practice focus: IRS controversy, FTB representation, audit defense, tax planning, tax preparation

Jayson M. Aquino is both a tax attorney and a CPA with more than 10 years of practice. The Anaheim office represents individuals and businesses against IRS and Franchise Tax Board procedures and regulations, alongside compliance and planning work.

Why they made the list: Dual JD/CPA credential, an Anaheim base (not a referral relationship from downtown LA), and a focused tax practice without scope creep into estate or business work.

Fee structure
Hourly / Flat fee
Free consultation
Free initial consult
Typical client
Anaheim individuals and small businesses with IRS or FTB exposure
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2

The Harpst Law Firm

Anaheim tax + estate boutique Practice focus: Tax controversy, U.S. Tax Court, estate planning, tax-court litigation, U.S. Supreme Court bar

Brian C. Harpst is board-certified in both taxation law and estate planning and is admitted to practice before the U.S. Tax Court and the U.S. Supreme Court. The firm handles tax controversy and tax-court litigation alongside estate planning.

Why they made the list: Board certification in two relevant specialties, U.S. Tax Court bar membership for cases that actually need to be litigated, and a paired estate practice for high-net-worth Anaheim families.

Fee structure
Hourly
Free consultation
Initial call free
Typical client
Anaheim individuals with serious tax exposure, high-net-worth families
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3

The Law Office of Linda T. Sung

Anaheim solo (former IRS) Practice focus: IRS audit defense, collection cases, FTB, EDD, tax controversy, dual CPA

Owner Linda T. Sung worked for the IRS as a senior auditor for 11 years and has been a Certified Public Accountant for 20 years before opening her tax-controversy practice. The firm focuses on representation before the IRS, FTB, and EDD.

Why they made the list: Former IRS senior auditor in the chair on your side, dual CPA / attorney credentials, and direct access to the lawyer (not a paralegal-driven mill).

Fee structure
Hourly / Flat fee
Free consultation
Initial call free
Typical client
Anaheim individuals and small businesses facing audit or collections
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4

K&S Law Group

Orange County tax firm Practice focus: IRS controversy, tax resolution, settlement negotiation, audit representation

Led by Omid Shirazi. Recognized for negotiating IRS settlements for Orange County individuals and businesses. The firm focuses on collection-side controversy work — offers in compromise, installment agreements, penalty abatement, and audit response.

Why they made the list: Published settlement track record on the IRS collection side, direct attorney access, and an Orange County base that handles Anaheim cases without referral overhead.

Fee structure
Flat fee / Hourly
Free consultation
Free initial consult
Typical client
Anaheim individuals and small businesses with IRS debt
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5

Silver Tax Group

National tax-controversy firm (serves Anaheim) Practice focus: IRS audits, tax debt relief, U.S. Tax Court, offers in compromise, FBAR

Founded by 7-time Super Lawyer Chad Silver, who has spent more than 20 years defending taxpayers and trying cases in U.S. Tax Court. Licensed California tax attorneys serving Anaheim residents and businesses with audit defense, collections work, and tax-debt resolution.

Why they made the list: Super Lawyers recognition over seven separate years, U.S. Tax Court trial experience, and a national bench when the matter outgrows the local boutique.

Fee structure
Flat fee / Hourly
Free consultation
Free initial consult
Typical client
Anaheim individuals and businesses with complex IRS exposure
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6

The Anaheim IRS Tax Lawyers

Anaheim local practice Practice focus: IRS audits, tax debt, offers in compromise, installment agreements, levy and lien defense

Anaheim-based tax-controversy practice at 500 S Citron Street. Focused on IRS audit defense, tax-debt resolution, and lien/levy relief for Anaheim individuals and small businesses.

Why they made the list: Physical Anaheim location for in-person meetings, focused IRS-controversy scope, and a published local presence for clients who want a lawyer down the street.

Fee structure
Flat fee / Hourly
Free consultation
Free initial consult
Typical client
Anaheim individuals with IRS collection exposure
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How to choose between these 6 firms

For an IRS audit or FTB controversy where you want a former insider on your side — The Law Office of Linda T. Sung is the most distinctive fit. Eleven years inside the IRS audit function is a credential the other firms do not have.

For a U.S. Tax Court case where the matter has to be litigated — The Harpst Law Firm and Silver Tax Group are the strongest fits. Both have actual U.S. Tax Court admissions and trial experience.

For an offer in compromise or installment agreement where you want predictable pricing — K&S Law Group and The Anaheim IRS Tax Lawyers handle the collection-side work with flat-fee structures.

For Anaheim businesses with both tax-planning and tax-controversy needs under one roof — The Tax Law Office of Jayson M. Aquino pairs the JD with the CPA, which means the same attorney can review the return and defend it.

For Anaheim families with estate and tax exposure together — The Harpst Law Firm is the only firm on this list that holds board certifications in both taxation and estate planning.

What a tax and IRS lawyer typically costs in Anaheim

IRS correspondence audit response (the simplest audit form): $1,500–$3,500 flat fee at most Anaheim practices.

IRS office or field audit representation: $4,000–$15,000 depending on scope, years under audit, and document volume.

FTB residency or unitary audit: $5,000–$25,000. California residency audits and unitary-business challenges are among the most expensive state tax matters in the country.

Offer in compromise: $3,000–$6,500 flat fee plus the $205 IRS application fee. Acceptance rates have run roughly 30–40 percent; the "pennies on the dollar" marketing dramatically overstates how common big reductions are.

Installment agreement (streamlined): $750–$2,000 flat fee.

Penalty abatement request: $750–$2,500 depending on grounds. First-time abatement is the easiest; reasonable-cause abatement is the most negotiated.

U.S. Tax Court petition and litigation: $5,000–$35,000 depending on the dispute and whether the case settles in motions or proceeds to trial.

FBAR/FATCA compliance and Streamlined Filing Compliance Procedures: $3,500–$15,000 depending on the years and the asset count.

Hourly rates at Anaheim tax firms: $325–$650, with boutique tax-controversy practices running mid-range and the larger firms at the top.

Red flags to watch for when picking a tax and IRS lawyer in Anaheim

The big legal directories list hundreds of Anaheim attorneys for this work. Most are competent. A few are problematic. Watch for these patterns.

Guaranteed outcomes. No ethical attorney can promise a specific result. If a firm guarantees a court win, a tax debt cut to zero, or a perfect contract that "can never be challenged," walk away.

The disappearing partner. You meet a senior name at the intake meeting, then never speak to that person again. Your file gets handed to an unsupervised junior or a paralegal. Ask in writing who will be your day-to-day attorney and what the supervision structure looks like.

Pressure to sign on the spot. Reputable firms send you the engagement letter, give you time to read it, and let you take it home. Same-day "you have to retain us today" tactics are almost always a sign of a volume mill, not a craftsperson's practice.

No verifiable track record. The firm should be able to point to peer rankings, bar specialization, published case results, or named clients. "We have helped thousands" is marketing copy. Specific case names, transaction sizes, or third-party recognitions are evidence.

Vague fee terms. "Don't worry about cost" is a red flag. Every legitimate Anaheim lawyer will give you a written engagement letter with the fee structure, what is included, what triggers extra charges, and what happens if you terminate the relationship.

10 questions to ask in your free consultation

Most firms on this list offer a free or low-cost initial consultation. Use it. Bring a written list of questions and write down the answers. Compare across at least two firms before you sign anything.

  1. Who, specifically, will handle my matter day to day? Get a name and an email. Confirm that this person, not the partner you met at intake, will be your primary point of contact.
  2. How many matters like mine have you handled in the last three years? You want a real number, not a brochure line.
  3. What is your fee and what does it cover? Get the answer in writing before you sign. Hourly, flat, contingency, or hybrid — and what triggers a change.
  4. What costs am I responsible for outside the legal fee? Filing fees, expert witnesses, third-party services, courier, transcription. Ask now to avoid surprise invoices.
  5. What is a realistic range of outcomes for a situation like mine? A good lawyer will give you a range with assumptions. A bad one will only describe the best case.
  6. How long will it take? Honest estimate with the assumptions stated.
  7. Who else might be involved? Co-counsel? Experts? Local counsel? Larger matters routinely involve outside specialists.
  8. How and how often will I hear from you? Email-only? Weekly calls? Status updates on a schedule? Set the expectation up front.
  9. What happens if I want to change lawyers later? The rules allow it; the fee is sorted between firms.
  10. What is the worst case for me here? A lawyer who refuses to discuss downside risk is selling, not advising.

What is specific about a tax and IRS matter in Anaheim

California has the FTB — not just the IRS. The Franchise Tax Board runs its own audits, applies its own statute of limitations (four years, longer for residency cases), and is independently aggressive on residency challenges. An Anaheim tax attorney who only does federal work is a partial answer.

EDD payroll-tax exposure is its own animal in California. The Employment Development Department audits worker-classification (independent contractor vs. employee) under AB5/Borello, and the assessments can be larger than the IRS exposure on the same workforce. Several Anaheim attorneys above handle EDD alongside IRS work.

California residency audits. Anaheim residents who move to Nevada, Texas, or Florida for tax reasons routinely get a residency audit from the FTB — sometimes years later. Documenting domicile change in real time (driver’s license, voter registration, doctor, dentist, banking, social ties) is much cheaper than litigating it later.

U.S. Tax Court regularly sits in Los Angeles. Most Orange County Tax Court petitioners try cases in the LA trial sessions. Familiarity with the bench that rides this circuit is a working credential.

Common pitfall: ignoring the first letter. An IRS CP2000, an FTB Notice of Proposed Assessment, or an EDD audit notice all have short response windows (30 to 60 days). Missing them is the most common avoidable mistake in California tax controversy.

Frequently asked questions

How long can the IRS go back on me?

Three years from the filing date for normal audits, six years if you underreported income by more than 25 percent, and unlimited if you did not file or the IRS alleges fraud. California adds the FTB statute on top, which is generally four years and longer for residency cases.

Can I really settle my IRS tax debt for less than I owe?

Sometimes. An offer in compromise lets you settle for less than the full debt if you genuinely cannot pay the full amount. Historical acceptance rates have run roughly 30–40 percent. The "pennies on the dollar" marketing dramatically overstates how often big reductions happen.

What is the difference between a CPA and a tax attorney?

A CPA prepares and audits returns and handles routine IRS correspondence. A tax attorney has attorney-client privilege (CPAs do not, for tax-prep matters), can litigate in U.S. Tax Court and federal court, and is the right call when there is a real dispute, exposure, or criminal angle. Several attorneys on this list hold both credentials.

Will I go to jail for owing back taxes?

Owing money is a civil matter, not criminal. Criminal tax exposure comes from affirmative acts — hiding income, lying on returns, willfully not filing, evading collection. If the IRS or DOJ is hinting at criminal referral, get an attorney immediately.

My business has unpaid payroll taxes. How serious is this?

Very. The trust fund recovery penalty under IRC 6672 personally pierces the corporate veil and holds individuals (owners, officers, anyone with check-signing authority) personally liable for the unpaid trust-fund portion. Bankruptcy will not discharge it.

Should I file even if I cannot pay?

Yes. The failure-to-file penalty is roughly ten times the failure-to-pay penalty. File on time, pay what you can, and work out a payment plan for the rest.

I moved from California to Nevada. Can the FTB still audit me?

Yes, especially in the first few years after the move. FTB residency audits are unusually aggressive and look at where your driver’s license, voter registration, doctor, dentist, social ties, and banking are. Document the move in real time — before the audit notice arrives.

Do I have an offshore account I never reported. How bad is it?

Fixable, often without criminal exposure, through the IRS Streamlined Filing Compliance Procedures or a Voluntary Disclosure. Both work better when initiated before the IRS comes asking. Talk to a tax attorney before you file an amended return on your own.

Get matched to a vetted Anaheim tax and IRS firm

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One last thing. Choosing a lawyer is personal. Read the reviews. Call two or three firms before you sign. Ask each one the same opening question: How many matters like mine have you handled in the last three years, and what were the outcomes? The way they answer tells you almost everything. — The LawFirmSquare team

LawFirmSquare is a directory. We do not represent clients or refer cases for a fee. Editorial rankings reflect publicly available recognition and reviews and are not a substitute for personalized legal advice.