Tax Litigation Attorneys
Experienced legal representation for tax litigation matters across all 50 states.
About Tax Litigation
Tax litigation involves representing taxpayers in formal legal proceedings before the United States Tax Court, federal district courts, the Court of Federal Claims, and appellate courts when disputes with the IRS or state taxing authorities cannot be resolved administratively. It is the final recourse for taxpayers who disagree with an assessed tax deficiency, denied refund claim, or adverse IRS collection action. Tax litigation requires specialized knowledge of tax law, federal procedure, and evidence rules, making it one of the most technically demanding areas of legal practice.
The United States Tax Court is the most common venue for federal tax litigation because it allows taxpayers to challenge a proposed tax deficiency without first paying the disputed amount. This prepayment forum is critical for taxpayers who cannot afford to pay the tax and then sue for a refund. Tax Court proceedings begin when the taxpayer files a petition within 90 days of receiving a Notice of Deficiency. The Tax Court has its own rules of practice and procedure, and cases are heard by judges who specialize exclusively in tax law. Alternative venues — federal district courts and the Court of Federal Claims — require full payment of the disputed tax before filing suit, but they offer the advantage of jury trials (in district court) and may be strategically preferable in certain cases.
Tax litigation encompasses a wide range of disputes including income tax deficiencies, estate and gift tax valuations, partnership and S-corporation allocation disputes, employment tax assessments, penalty challenges, collection due process hearings, and innocent spouse claims. The litigation process involves pretrial discovery, motion practice, potential settlement negotiations with IRS Chief Counsel attorneys, trial preparation, and — if necessary — trial and post-trial briefing. Many Tax Court cases are resolved through the Court's settlement process, with IRS Chief Counsel attorneys authorized to concede or compromise cases based on the merits.
Why You Need a Tax Litigation Attorney
Tax litigation matters because it represents the taxpayer's ultimate check on IRS authority. Without access to independent judicial review, the IRS would have unchecked power to assess taxes, impose penalties, and seize assets. The right to petition the Tax Court, in particular, ensures that taxpayers can challenge IRS determinations before a neutral arbiter without first having to pay the disputed amount — a protection that is especially important for individuals and small businesses that cannot afford to prepay a large tax assessment.
Beyond individual cases, tax litigation shapes the broader tax landscape. Tax Court and federal court decisions establish precedent that guides how the IRS interprets and enforces the tax code. Favorable litigation outcomes can benefit not only the individual taxpayer but also similarly situated taxpayers nationwide. For taxpayers facing significant assessments, penalties, or collection actions, litigation provides leverage that can lead to better settlement terms even before trial. IRS Chief Counsel attorneys regularly settle cases to avoid the risk of an unfavorable published opinion.
Common Tax Litigation Cases
Tax Court Deficiency Cases
Petitioning the United States Tax Court to challenge proposed income tax, estate tax, or gift tax deficiencies after receiving a Notice of Deficiency from the IRS.
Refund Litigation
Filing suit in federal district court or the Court of Federal Claims to recover taxes that were overpaid, after the IRS denies or fails to act on an administrative refund claim.
Collection Due Process Litigation
Challenging IRS collection actions — including liens and levies — in Tax Court after an unfavorable Collection Due Process hearing determination.
Partnership Tax Disputes
Litigating disputes over partnership income allocations, basis adjustments, and at-risk limitations under the centralized partnership audit regime (BBA procedures).
Penalty Litigation
Contesting IRS-imposed penalties including accuracy-related penalties, fraud penalties, international information return penalties, and trust fund recovery penalties in court.
Innocent Spouse Litigation
Petitioning the Tax Court for relief from joint tax liability when the IRS denies an administrative request for innocent spouse, separation of liability, or equitable relief.
Appellate Tax Litigation
Appealing unfavorable Tax Court decisions to the appropriate United States Court of Appeals, or defending favorable decisions when the IRS appeals.
Valuation Disputes
Litigating disagreements over the fair market value of assets for estate tax, gift tax, charitable contribution, and business transaction purposes.
Typical Tax Litigation Case Timeline
Notice of Deficiency & Petition Filing
1-90 daysAfter receiving a Notice of Deficiency, the taxpayer has exactly 90 days to file a petition with the Tax Court. The attorney reviews the notice, analyzes the merits, and prepares and files the petition.
Answer & Pleadings
60-90 daysThe IRS files an Answer to the petition, and the parties exchange initial pleadings that frame the disputed issues. The case is assigned to a Tax Court judge.
Discovery & Case Development
3-9 monthsThe parties engage in formal discovery including document requests, interrogatories, and depositions. Experts may be retained for valuation, accounting, or industry-specific issues.
Settlement Negotiations
2-6 monthsIRS Chief Counsel attorneys and the taxpayer's attorney engage in settlement discussions, often through the Tax Court's calendar call and pretrial conference processes.
Trial
1-10 daysIf settlement is not reached, the case proceeds to trial before a Tax Court judge. Trials involve opening statements, witness testimony, document exhibits, and closing arguments.
Post-Trial Briefing & Opinion
3-18 monthsBoth parties submit post-trial briefs and reply briefs. The judge issues a written opinion deciding the case, which may take several months to over a year after trial.
Know Your Rights
- You have the right to challenge any proposed tax deficiency in the United States Tax Court without first paying the disputed tax amount.
- You have the right to a trial before an independent judge who specializes in tax law and is not employed by the IRS.
- You have the right to designate cases involving $50,000 or less as small tax cases (S cases) in Tax Court, which follow simplified and less formal procedures.
- You have the right to recover reasonable litigation costs and attorney fees from the IRS if you substantially prevail and the IRS's position was not substantially justified.
- You have the right to a jury trial if you choose to litigate in federal district court after paying the disputed tax and filing a refund claim.
- You have the right to appeal an unfavorable Tax Court decision to the appropriate United States Court of Appeals.
What to Look for in a Tax Litigation Attorney
Tax litigation requires an attorney with both deep tax knowledge and courtroom skills. Look for an attorney who is admitted to practice before the United States Tax Court and who has actual trial experience — not just settlement negotiations. Many tax attorneys handle disputes administratively but lack litigation experience. Ask how many Tax Court petitions the attorney has filed, how many cases they have tried, and what their track record is. Review any published Tax Court opinions involving the attorney.
Experience with the specific type of tax dispute matters enormously. Deficiency litigation, refund suits, collection due process cases, and penalty disputes each involve different legal standards and procedural rules. Ask whether the attorney has handled cases involving the same Internal Revenue Code sections and the same factual patterns as your case. Evaluate the attorney's analytical and writing skills — tax litigation is heavily dependent on legal memoranda, pre-trial briefs, and post-trial briefing. Finally, consider whether the firm has the resources for litigation, including access to expert witnesses, forensic accountants, and valuation specialists.
Questions to Ask Your Tax Litigation Attorney
- 1How many Tax Court cases have you personally tried, and how many resulted in favorable outcomes for the taxpayer?
- 2What is your assessment of the merits of my case, and what is the realistic range of outcomes if we litigate?
- 3Is the Tax Court the best venue for my case, or should we consider federal district court or the Court of Federal Claims?
- 4What is the estimated total cost of litigation through settlement versus through trial?
- 5Do you have experience with the specific area of tax law involved in my dispute?
- 6How likely is settlement, and at what point in the process do most similar cases settle?
- 7Will I be eligible to recover attorney fees if we prevail?
Understanding Tax Litigation Legal Costs
Tax litigation is the most expensive form of tax dispute resolution. Attorney fees for Tax Court cases typically range from $15,000 to $75,000 for cases resolved through settlement, and $50,000 to $200,000 or more for cases that go to trial. Small tax cases (disputes under $50,000) can be designated as S cases in Tax Court, which follow simplified procedures and typically cost $5,000 to $15,000. Hourly rates for tax litigators range from $300 to $700 per hour depending on experience and market. Expert witness fees, deposition costs, and court filing fees are additional. Some tax litigators handle contingency-fee arrangements for refund cases, typically charging 25 to 33 percent of the recovery. Most attorneys require a retainer upfront and bill against it monthly.
Key Legal Terms
Video Resources
These videos are provided for informational purposes only. The attorneys and organizations featured are not affiliated with or endorsed by Northwind Law.
How the US Tax Court Works
Tax Foundation
Going to Tax Court: What You Need to Know
TaxProTalk
IRS Audits Explained — How Tax Disputes Begin
Help From A Former IRS Agent
Frequently Asked Questions About Tax Litigation
Citations & Sources
- [1]The United States Tax Court receives approximately 25,000 new petitions each year, making it the primary forum for resolving federal tax disputes. — United States Tax Court Annual Report
- [2]Approximately 90 percent of Tax Court cases are resolved through settlement between the taxpayer and IRS Chief Counsel without proceeding to trial. — United States Tax Court Annual Report
- [3]Under IRC Section 7430, a prevailing taxpayer may recover reasonable litigation costs if the IRS position was not substantially justified and the taxpayer exhausted administrative remedies. — IRC Section 7430
- [4]The Tax Court filing fee is $60, making it the most accessible forum for taxpayers seeking to challenge IRS determinations without prepaying the disputed tax. — United States Tax Court Rules of Practice and Procedure
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