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Tax Lawyers

Tax Lawyers: directory of firms

A tax lawyer is for the point where a tax problem becomes a legal one: a proposed assessment you intend to contest, collection action against your property, a dispute headed for the US Tax Court, or an exposure serious enough that criminal referral is conceivable. For return preparation and routine correspondence, a CPA or an enrolled agent is usually the right and cheaper choice.

Browse tax lawyers by city, and see what to check before you hire.

This kind of work is often limited to licensed or registered professionals. Ask for their licence or registration number before you share any details.

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Practice before the IRS is regulated. Circular 230, the regulations governing practice before the Internal Revenue Service, sets mandatory conduct standards for attorneys, certified public accountants and enrolled agents, and the IRS Office of Professional Responsibility holds exclusive delegated authority and oversight responsibility for practitioner conduct and discipline, including disciplinary proceedings and sanctions.

Almost everything in tax turns on a deadline printed on a notice. A statutory notice of deficiency gives 90 days to petition the Tax Court, 150 days if the notice is addressed to a person outside the United States, and the Tax Court cannot extend it. A Collection Due Process request must be made within 30 days. Reading the date on the letter is the first piece of legal work.

Circular 230, the Office of Professional Responsibility, and who may represent you

Circular 230 is the rulebook for representing taxpayers before the IRS. It applies to attorneys, CPAs and enrolled agents, and the Office of Professional Responsibility also has jurisdiction over appraisers and over return preparers in the Annual Filing Season Program. OPR investigates and enforces compliance, conducts disciplinary proceedings and pursues sanctions, and it runs education and outreach on competence and ethics.

Authority to act for you is created by Form 2848, the Power of Attorney and Declaration of Representative, which the IRS describes as authorising an individual to represent you before the agency and to receive your confidential tax information. The person named must be eligible to practise before the IRS, and a student working in a qualified Low Income Taxpayer Clinic or Student Tax Clinic Program can be authorised under a special arrangement with the Taxpayer Advocate Service.

The deadlines on IRS notices, and what each one means

  • A statutory notice of deficiency, also called a 90-day letter, gives 90 days from the date on the notice to petition the US Tax Court, or 150 days if it is addressed to a person outside the United States.
  • The Tax Court states that it cannot grant extensions of that period; a late petition cannot be accepted.
  • A Notice of Federal Tax Lien filing or a Final Notice of Intent to Levy carries a 30-day window to request a Collection Due Process hearing with the IRS Independent Office of Appeals.
  • Filing your return late does not extend the deficiency deadline, which runs from the date of the notice.
  • Examination letters carry their own response dates, and ignoring them is how a manageable audit becomes an assessment.
  • Refund claims have their own statutory time limits, which is why a potential overpayment should be raised early rather than at the end of a dispute.

Audit, Appeals, Tax Court: how an IRS dispute progresses

A dispute usually begins with an examination conducted by correspondence or in person. If it cannot be resolved with the examiner, the case can go to the Independent Office of Appeals, which is separate from the examination function and exists to settle disputes without litigation.

If that fails, a notice of deficiency issues and the taxpayer may petition the US Tax Court. The important practical feature of the Tax Court is that you can litigate without paying the disputed tax first. The alternative route, paying and then suing for a refund in a district court or the Court of Federal Claims, requires payment up front.

Collection disputes run on a parallel track. A Collection Due Process hearing is where liens and levies are challenged and where alternatives such as an instalment agreement, an offer in compromise or currently-not-collectible status are put forward.

Tax lawyer, CPA or enrolled agent: which one you need

All three may represent taxpayers before the IRS and all three are governed by Circular 230. The differences show up at the edges. A CPA's strength is the numbers, the books and the return. An enrolled agent is a tax specialist licensed federally and often excellent value for examination and collection work.

A lawyer becomes the right choice where the question is what the law requires rather than what the figures are, where litigation is realistic, and where the communications need the protection of the attorney-client privilege. That last point matters most when a civil examination could turn into a criminal investigation, because that is exactly when what you said to your adviser becomes the issue. The US Tax Court also admits some non-attorneys who pass its examination, so being admitted to practise there is a separate credential worth asking about.

The tax matters lawyers are actually hired for

  • Contesting a proposed assessment through Appeals or in the Tax Court.
  • Collection defence: liens, levies, wage garnishment, instalment agreements and offers in compromise.
  • Employment tax problems, including trust fund recovery penalty assessments against individuals personally.
  • Voluntary disclosure and foreign account reporting, where penalties are severe and the procedures are technical.
  • Innocent spouse relief, where one spouse seeks relief from liability arising on a joint return.
  • Penalty abatement, including reasonable cause arguments on late filing and late payment.
  • State and local tax disputes, including residency audits and sales tax nexus, which are separate systems with their own tribunals.

Free help that exists: the Taxpayer Advocate Service and Low Income Taxpayer Clinics

The Taxpayer Advocate Service is an independent organisation inside the IRS that describes itself as your voice at the agency. It helps with problems that are not getting resolved through normal channels, including missing refunds, payment difficulties, unresolved notices and questions about taxpayer rights, and its help is free.

Low Income Taxpayer Clinics are the other route. They provide free or low-cost representation to eligible taxpayers in disputes with the IRS, including cases in the Tax Court, and the Tax Court itself runs a clinical program with organisations that represent low-income petitioners. If cost is what is stopping you from contesting a notice, that is the call to make before the deadline passes.

Tax Lawyers: frequently asked questions

How long do I have to challenge a notice of deficiency?

Ninety days from the date on the notice, or 150 days if it is addressed to a person outside the United States. The US Tax Court states that it cannot grant extensions, so the petition has to be filed within the period whatever else is happening.

What should I do about a Final Notice of Intent to Levy?

Act within 30 days. That is the window to request a Collection Due Process hearing with the IRS Independent Office of Appeals, where the collection action can be challenged and alternatives such as an instalment agreement or an offer in compromise can be raised.

Do I need a lawyer, or will my accountant do?

Attorneys, CPAs and enrolled agents may all represent you before the IRS under Circular 230. A lawyer is the right choice where the dispute is about what the law requires, where litigation is likely, or where the matter could become criminal and you need the protection of the attorney-client privilege.

Can I be represented in the US Tax Court by someone who is not a lawyer?

Yes, if that person has been admitted to practise before the Tax Court, which admits certain non-attorneys by examination. Tax clinics participating in the court's clinical program also represent low-income taxpayers, and taxpayers may represent themselves.

What is Form 2848 for?

It authorises someone to represent you before the IRS and to receive your confidential tax information. The person named has to be eligible to practise before the agency, so it is the document that makes representation official rather than informal.

Is there free help if I cannot afford representation?

Yes. The Taxpayer Advocate Service assists free of charge with problems that are not being resolved through normal channels, and Low Income Taxpayer Clinics provide free or low-cost representation to eligible taxpayers, including in Tax Court cases.

Sources

  1. IRS — Circular 230 and the Office of Professional Responsibility
  2. IRS — About Form 2848, Power of Attorney
  3. IRS — Understanding your CP3219N notice of deficiency
  4. IRS — Collection Due Process FAQs
  5. IRS — Taxpayer Advocate Service
  6. US Tax Court — Starting a case

Written by the LokalMatch editorial team. Last reviewed September 22, 2026. How we write and check our guides

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What affects the fees tax lawyers charge

Fees depend on the work involved and how the professional bills. We only publish fee ranges when they’re backed by real LokalMatch data or reliable sources. Until then, here’s what usually changes the fee:

  • Scope and complexity of the work
  • How the professional bills: hourly, flat fee or retainer
  • Experience and seniority of the person doing the work
  • Deadlines and how urgent the work is
  • Third-party costs such as filing, registration or government fees

How to compare tax lawyers before you hire

  • Check that they are licensed or registered for this work where you live, on the regulator’s public register.
  • Look for experience with matters like yours, and ask who will actually handle your file.
  • Ask how they charge before any work starts, and get the terms in writing.
  • Compare two or three professionals before you decide.
  • Be wary of anyone who guarantees a particular outcome.

Questions to ask tax lawyers before you hire

  • Are you licensed or registered for this work, and with which body?
  • Have you handled matters like mine before?
  • Who will do the work, and who will I deal with day to day?
  • How do you charge: hourly, a flat fee or a retainer?
  • What is included in your fee, and what costs extra?
  • Will you confirm the scope and fees in a written engagement letter?
  • Do you carry professional liability insurance?

Licences and registration

This kind of work is often limited to licensed or registered professionals, and the rules depend on where you are. Ask which body they’re registered with, and check their status on that body’s public register before you hire.