IRS audit, collection notice, or tax court case in Oklahoma City? Get a tax attorney - not a CPA or enrolled agent.
Top 10 Tax and IRS Lawyers in Oklahoma City
Oklahoma City IRS matters run through the IRS Office of Appeals in Dallas (regional), the U.S. Tax Court (rides circuit through Oklahoma City), and the U.S. District Court for the Western District of Oklahoma (refund cases, criminal tax). State tax controversy runs through the Oklahoma Tax Commission and the Oklahoma Court of Tax Review. The 10 firms below have verifiable Oklahoma City tax-controversy practices.
Updated January 18, 202614 min readEditorially independent
IRS work is its own specialty. CPAs and enrolled agents can handle most filings and even some audits, but only attorneys have attorney-client privilege, can litigate in U.S. Tax Court at a sophisticated level, and can defend criminal tax investigations. The 10 firms below split into two groups: BigLaw and mid-size firms for complex transactional tax and high-dollar controversy, and boutique tax-resolution firms focused on individual and small-business IRS resolution.
These firms are filtered against Best Lawyers Best Law Firms 2026 Tax Law, Super Lawyers Oklahoma Tax, Chambers USA where applicable, Avvo, Justia, and U.S. Tax Court admission records. The list spans BigLaw teams for complex corporate tax matters down to boutique firms focused exclusively on IRS resolution for individuals and small businesses.
How we picked these 10: We reviewed peer rankings (Chambers USA, Best Lawyers, Super Lawyers, Avvo, Martindale-Hubbell, Justia), bar association recognition, and published case results. Firms that appeared consistently across at least two independent sources made the list. We do not accept payment for placement, and we do not write sponsored reviews. More on our methodology →
1
Crowe & Dunlevy
Braniff Building, 324 N Robinson Ave, Suite 100, Oklahoma City, OK 73102Founded 1902 (Oklahoma City HQ)Large (~150+ attorneys; OKC HQ)
Practice focus: Federal tax controversy, transactional tax, partnership tax, exempt organization tax, IRS audit defense, criminal tax
Oklahoma City-headquartered. Tax attorneys focus on desired tax results and implement plans to achieve them, routinely providing tax opinions and obtaining private letter rulings from the IRS and Oklahoma Tax Commission. Jeffery D. Trevillion Jr. (director in OKC office) is an experienced trial lawyer and certified public accountant who develops comprehensive strategies for clients facing civil and criminal tax controversies. Benchmark Litigation 2026 Oklahoma Firm of the Year.
Two Leadership Square, 211 N Robinson, Oklahoma City, OK 73102Founded 1950 (Oklahoma City HQ)Large (~250 attorneys; OKC HQ)
Practice focus: Federal tax controversy, transactional tax, partnership tax, state and local tax, executive compensation, exempt organization tax
Oklahoma's largest firm. Sophisticated tax practice covering planning and controversy for corporations, partnerships, and high-net-worth individuals. Chambers USA Band 1 Tax Oklahoma. Best Lawyers Best Law Firms 2026 Tier 1 Tax Law.
100 N Broadway Ave, Suite 2900, Oklahoma City, OK 73102Founded 1966 (Tulsa origin; OKC office)Large (~150 attorneys firmwide)
Practice focus: Federal tax controversy, transactional tax, partnership tax, oil and gas tax, estate tax
Full-service Oklahoma firm with a substantial Oklahoma City office. Strong tax practice covering federal and Oklahoma state tax controversy, transactional tax, and oil-and-gas-specific tax matters. Chambers USA Oklahoma Tax recognition.
201 Robert S. Kerr Ave, Suite 1600, Oklahoma City, OK 73102Founded 1989 (Oklahoma City)Boutique (~40 attorneys; OKC HQ)
Practice focus: Federal tax planning, partnership tax, tax-credit incentive advisory, state and local tax, M&A tax
Oklahoma City boutique. Well reputed for expertise in taxation matters, boasting a tax-credit incentive advisory capability that transcends state boundaries. Best Lawyers Best Law Firms 2026 Tier 1 Tax Law.
Corporate Tower, 13th Floor, 101 N Robinson Ave, Oklahoma City, OK 73102Founded 1986 (Oklahoma City HQ)Mid/Large (~75 attorneys; OKC HQ)
Practice focus: Tax controversy, transactional tax, partnership tax, estate and gift tax, exempt organizations
Oklahoma City business firm. Active tax practice covering both planning and controversy for middle-market businesses and high-net-worth individuals. Best Lawyers Best Law Firms 2026 recognition for Tax Law.
BancFirst Tower, 100 N Broadway Ave, Suite 1500, Oklahoma City, OK 73102Founded 1959 (Tulsa origin; OKC office)Large (~100 attorneys firmwide)
Practice focus: Federal tax controversy, transactional tax, partnership tax, oil and gas tax, M&A tax
Full-service Oklahoma firm. Tax practice covers federal and Oklahoma state tax planning and controversy with depth in oil and gas tax matters. Recognized by Chambers USA, IFLR1000, Benchmark Litigation.
211 N Robinson, Suite 1700, Oklahoma City, OK 73102Founded 1933 (Tulsa origin; OKC office)Large (~75 attorneys firmwide)
Practice focus: Transactional tax, employee benefits tax (ERISA), corporate tax, partnership tax, oil and gas tax
Oklahoma firm with a substantial Oklahoma City office. Strong ERISA and employee benefits tax practice alongside corporate and partnership tax work. Useful for compensation, retirement plan, and benefits-related tax issues.
Travis W. Watkins Tax Resolution & Accounting Firm
2837 NW 58th St, Oklahoma City, OK 73112Founded Early 2000s (Oklahoma City)Boutique tax firm (multi-location)
Practice focus: IRS audit defense, IRS collections, offer in compromise, installment agreements, penalty abatement, back taxes
Oklahoma City boutique tax-resolution firm. Travis Watkins is one of the top-rated tax attorneys in Oklahoma City per Super Lawyers. Certified Tax Resolution Specialist (American Society of Tax Problem Solvers). The Oklahoman's Reader's Choice Award for Best Taxation Firm (2018). Useful for individuals and small businesses facing IRS collection, audit, or back-tax issues.
100 N Broadway Ave, Suite 1700, Oklahoma City, OK 73102Founded 1968 (Oklahoma City)Mid (~45 attorneys; OKC HQ)
Practice focus: Tax planning, transactional tax, IRS audit defense, oil and gas tax, estate tax
Oklahoma City firm. Tax practice covers transactional planning, IRS audit defense, and Oklahoma state tax matters. Best Lawyers Best Law Firms recognition.
3030 NW Expressway, Suite 200, Oklahoma City, OK 73112Founded 2014 (Oklahoma City)Boutique tax firm
Practice focus: IRS audit defense, IRS collections, offer in compromise, installment agreements, payroll tax issues, criminal tax
Oklahoma City boutique tax-resolution firm. Focused on IRS resolution for individuals, families, and small businesses. Useful for taxpayers facing collection or audit who want IRS-resolution-specific counsel at non-AmLaw rates.
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What to expect from a Oklahoma City tax / irs matter
IRS audit (correspondence or office audit): 6 to 14 months from notice to closing letter. IRS field audit: 12 to 24 months. IRS Appeals: 6 to 12 months after the 30-day letter. U.S. Tax Court petition: 14 to 24 months from filing to trial. Offer in compromise: 9 to 12 months. Installment agreement: 30 to 60 days. Criminal tax investigation (CID): 18 to 36 months before charging decision. Federal tax lien release: 30 days after liability resolved.
What a tax / irs lawyer in Oklahoma City typically costs
Oklahoma City ranges for 2026: IRS audit defense (correspondence) $2,000-$6,500 flat; IRS office audit $4,500-$18,000; field audit $12,500-$65,000+; IRS Appeals $8,500-$45,000; Tax Court petition through trial $22,000-$175,000+; offer in compromise $3,000-$9,000 plus application fee; installment agreement $1,200-$4,500; criminal tax defense $40,000-$400,000+; transactional tax opinion $4,500-$45,000+. Hourly rates: $225-$425 boutique, $325-$700 mid/large firm, $500-$1,100+ AmLaw partner.
Red flags to watch for when picking a tax / irs lawyer in Oklahoma City
Most Oklahoma City firms doing this work are competent. A few patterns predict trouble.
Guaranteed outcomes. No ethical attorney can guarantee a result. If a firm promises a specific outcome, walk away.
The disappearing partner. You meet a senior partner at intake, then never speak to them again. The matter is handled by an unsupervised junior or paralegal. Ask in writing who will be your day-to-day attorney.
Pressure to sign immediately. Reputable firms give you the engagement letter in writing, time to read it, and the option to take it home. High-pressure intake is almost always a sign of a volume mill, not a careful practice.
No verifiable track record. The firm should be able to point to verdicts, settlements, peer rankings, or bar recognition. Specific numbers, named matters, and third-party rankings are evidence. Brochure phrasing is not.
Vague fee terms. "Do not worry about cost" is a red flag. Every legitimate Oklahoma City firm will give you a written engagement letter with the fee structure, what is covered, what triggers extra charges, and what happens if you change counsel.
10 questions to ask in your free consultation
Most Oklahoma City firms on this list offer a free or low-cost initial inquiry call. Use it. Bring a list of questions and write down the answers. Compare across at least two firms before you sign.
Who, specifically, will handle my matter day-to-day? Get a name. Get an email.
How many matters like mine have you handled in the last three years? You want a number, not a brochure line.
What is your fee, and what does it cover? Get the answer in writing before you sign.
What case expenses am I responsible for, and when? Out-of-pocket costs surprise people. Ask now.
What is the realistic range of outcomes for a matter like mine? A good lawyer will give you a range. A bad one will promise the high end.
How long will it take? Honest estimate, with the assumptions stated.
Who else might be involved? Experts? Co-counsel? Larger matters routinely involve outside experts. Know who is on the team.
How and how often will I hear from you? Email-only? Calls? Monthly updates? Set the expectation now.
What happens if I want to change lawyers later? Rules allow it; the fee is sorted between firms. Make sure you understand the mechanics.
What is the worst-case outcome for my matter? A lawyer who refuses to discuss downside risk is selling you something.
Frequently asked questions
Do I need a tax attorney instead of a CPA?
For IRS audits where the dispute is over numbers, a CPA or enrolled agent is often enough. For IRS Appeals, Tax Court litigation, criminal tax investigations, fraud penalty defense, or any matter where attorney-client privilege matters, you need an attorney. CPAs do not have attorney-client privilege for tax-controversy work.
What is an offer in compromise?
A settlement of an IRS tax debt for less than the full amount owed, based on the IRS's analysis of your reasonable collection potential (assets plus future income capacity). Acceptance rates are roughly 30 to 40% nationally. The 24-month review window means timing matters.
How does the U.S. Tax Court work?
Tax Court is the only court that lets you challenge an IRS deficiency before paying it. You file a petition within 90 days of receiving a Statutory Notice of Deficiency. The court rides circuit and holds trial sessions in Oklahoma City. Small tax cases ($50,000 or less per year) can use the small case procedure (no appeal).
What's the difference between IRS Appeals and Tax Court?
IRS Appeals is an administrative process within the IRS - faster, less formal, and based on the strength of your factual and legal position. Tax Court is a federal court with formal procedure and judicial review. You can do Appeals first, then Tax Court if Appeals doesn't resolve.
Can the IRS take my house?
Yes, in extreme cases - but the IRS rarely does. Federal tax liens attach to all your property; levies are the active seizure. Principal residences receive heightened procedural protection (collection due process hearings, judicial review). Most homeowners can negotiate installment agreements, offers in compromise, or currently-not-collectible status before levy.
How long does the IRS have to collect a tax debt?
10 years from assessment, plus tolling for periods when collection is stayed (offer in compromise pending, bankruptcy, hardship status). The 10-year collection statute is one of the strongest taxpayer protections in the Code.
What if I haven't filed tax returns in years?
File now, before the IRS files a substitute return (SFR) on your behalf. SFRs use single filing status and no deductions, which produces the worst possible tax result. Voluntary filing also opens the path to penalty abatement and Streamlined Filing for non-willful non-filers.
Can I get IRS penalties abated?
Sometimes. First-Time Penalty Abatement is available for taxpayers with a clean 3-year filing history. Reasonable cause abatement is available for penalties caused by circumstances beyond your control (serious illness, natural disaster, reliance on incorrect IRS advice). Documentation matters.
What is a tax fraud investigation?
An IRS Criminal Investigation Division (CID) investigation that can result in federal criminal tax charges (tax evasion, willful failure to file, false return). If you receive a CID interview request, do not respond without counsel. Statements to CID agents can be used against you. Privilege issues are critical.
Does Oklahoma have its own tax controversy process?
Yes. Oklahoma Tax Commission audits and assessments go through OTC administrative appeals, then the Oklahoma Court of Tax Review (administrative court), then Oklahoma district court. Oklahoma also has its own installment agreement and voluntary disclosure programs, separate from the IRS.
One last thing. Choosing a lawyer is personal. Read the reviews. Call two or three firms before you sign. Ask each one: How many matters like mine have you handled in the last three years? The answer tells you everything. — The LawFirmSquare team
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