Tax Controversy and Litigation

Experience makes the difference in tax disputes.

Capes Sokol’s Tax Controversy and Litigation practice represents individuals and businesses in civil and criminal tax disputes involving the Internal Revenue Service, various states’ Departments of Revenue and the United States Department of Justice.

Our team consists of attorneys and other professionals with vast experience handling tax controversy and litigation matters.  It includes attorneys with advanced degrees in tax law and in-depth knowledge of international taxation, a Certified Public Accountant, a former federal tax prosecutor, a former public defender, and a retired IRS Special Agent. We are respected leaders and lecturers, often called on to speak on civil and criminal tax issues in St. Louis and throughout the country.  Members of our team have collectively taught the Tax Fraud Prosecutions course at the Washington University Law School for over 30 years. We are leaders in local and national tax and accounting organizations, including the American Bar Association Taxation Section, the Taxation Section of the Bar Association of Metropolitan St. Louis, and the Missouri Society of Certified Public Accountants.

Whether working with individual taxpayers or businesses, we strive to reach out-of-court resolutions when it is in our client’s best interest.  When necessary, however, we enthusiastically apply our wide breadth of experience to litigate cases before the United States Tax Court, Federal District Courts throughout the United States, the Missouri Administrative Hearing Commission, and state courts in Missouri and Illinois.

Contact one of our Tax Controversy and Litigation attorneys to see how we can help you.

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Civil Tax Controversy and Litigation

  • IRS Audits | Income, Employment, Tax-Exempt, Estate and Gift, and International

  • Appeals before the IRS Office of Appeals

  • Tax Litigation

  • Multi-State Sales and Use Tax Audits and Appeals

  • Claims for Refund

  • Trust Fund Recovery Penalty Investigations and other Employment Tax matters

  • Claims for Innocent Spouse Relief

  • Federal and State Tax Collection Matters

  • Tax Practitioner Penalty Investigations and Appeals

  • Tax Practitioner Disciplinary Matters Involving the IRS Office of Professional Responsibility, the Missouri Office of Chief Disciplinary Counsel and the Supreme Court of Missouri, and the Missouri State Board of Accountancy

Criminal Tax Litigation

  • IRS Criminal Tax Administrative and Grand Jury Investigations

  • Federal and State Criminal Tax Litigation

  • Sensitive IRS Audits

  • Domestic Voluntary Disclosures Including Representation of Delinquent Filers

  • Advising Taxpayers with Undisclosed Foreign Income and Assets


Practice Group Chair

Sara G. Neill


Laura E. Krebs Al-Shathir
Sanford J. Boxerman
Sanford J. Boxerman
David V. Capes
Senior Counsel
L. Ross Gaddis
Kaid A. Koester
Michelle F. Schwerin
Michelle F. Schwerin


Megan L. Haupt

Other Professionals

Jeanne M. Schaller
Forensic Accountant

Contact one of our Tax Controversy and Litigation attorneys to see how we can help you.

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PPP Loan Forgiveness Comes with a Price: Lost Deductions
Coronavirus Aid, Relief, and Economic Security (“CARES”) Act: Payroll Tax Implications
People First Initiative: IRS to Provide Additional Relief to Taxpayers in Response to COVID-19