Matthew Schiller
Senior Counsel
Matthew Schiller is senior counsel in the Tax practice group at Greenspoon Marder LLP, concentrating in the complex field of tax controversy, with a focus on representing cannabis companies, and a mission to achieve fair taxation and treatment of cannabis companies and their employees. His practice involves representing individuals and businesses before the Internal Revenue Service and state taxing authorities to resolve unpaid tax liabilities, in audits, and in the U.S. Tax Court.
Prior to joining Greenspoon Marder, Mr. Schiller’s practice encompassed tax debt management and resolution, entity formation issues, and ensuring ongoing compliance for individuals and businesses alike. Mr. Schiller previously served as a consultant for several prominent tax consulting firms, where he resolved tax collection cases nationwide, provided ancillary tax and consulting services, and proactively monitored future tax activities to anticipate and address compliance issues.
Mr. Schiller earned his Juris Doctor from the University of Denver Sturm College of Law and holds a Bachelor of Arts degree in political science from the University of Northern Colorado. His comprehensive background and dedication to staying at the forefront of tax law developments make him a trusted advisor in navigating the complexities of cannabis taxation.
Experience
Professional and Community Involvement
- Enrolled Agent licensed to practice before the IRS.
- Volunteer and pro bono: University of Denver Low Income Taxpayer Clinic
- Proud father and Colorado mountain / outdoor enthusiast
Publications
- Jul 3, 2025 Seeing the Big Tax Picture of Your Cannabis Company Acquisition
- Jun 26, 2025 State Responses to the Federal Loophole Surrounding Intoxicating Hemp Products
- May 14, 2024 IRS Penalties and What You Can Do About Them
- Apr 24, 2024 Legitimate Ways to Reduce Your Tax Bill
- Apr 10, 2024 Penalty Abatement & Resolution Basics
News & Videos
- Greenspoon Marder Secures Major Taxpayer Victory Against California’s Attempt to Impose Cannabis Excise Taxes on Federally Legal Hemp Products
- The Blunt Truth – Salvaging Your Cannabis Company
- Greenspoon Marder Cannabis and Immigration Practice Groups Receive Rankings in the Legal 500 USA for 2025
- Greenspoon Marder Cannabis and Immigration Practice Groups Receive Rankings in The Legal 500 USA for 2024