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Taxpayer Defense Center

NTUF’s Taxpayer Defense Center (TDC), our public interest litigation arm, argues in court for taxpayers’ rights. Our lawyers challenge overzealous, unfair tax administration, and TDC lawsuits have led to better policy and wins worth tens of millions of dollars for individuals and businesses nationwide.

Active Litigation 

Past Litigation

Amicus Briefs 

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Blog 

Third Circuit Hears Oral Arguments on Tax on Prescription Drugs Cases

by Lindsey Carpenter, Tyler Martinez November 08, 2024

Blog 

NTUF Urges Fourth Circuit to Strike Down Maryland’s ‘Tax Speech’ Ban, Defending First Amendment

by Tyler Martinez November 07, 2024

Blog 

Eighth Circuit Hears Oral Arguments for High Stakes 3M Case

by Lindsey Carpenter, Tyler Martinez October 29, 2024

Blog 

Massachusetts Land Court Hears Case on Property Owner’s Rights

by Lindsey Carpenter October 23, 2024

Blog 

Michigan Supreme Court Protects Property Owner’s Rights in Schafer v. Kent County

by Lindsey Carpenter October 23, 2024

Blog 

NTUF Files Amicus Brief to Protect New Mexico Residents from Retroactive Taxes

by Lindsey Carpenter October 23, 2024

Blog 

NTUF Victory in Colorado: Colorado Supreme Court Rejects Hearing Water District Appeal

by Tyler Martinez October 02, 2024

Blog 

NTU Files New Case in California Fighting Against California Revenue and Taxation Code Section 25128.9

by Joe Bishop-Henchman, Lindsey Carpenter August 15, 2024

Blog 

NTUF Files Brief Against FRA’s Costly Two-Person Crew Mandate, Citing Economic and Regulatory Overreach

by Tyler Martinez, Joe Bishop-Henchman August 13, 2024

Blog 

Fifth Circuit Declares Universal Service Fund Fee Unconstitutional, Creating Circuit Split and Paving Way for Supreme Court Review

by Tyler Martinez July 24, 2024

Blog 

TDC to Third Circuit: A 95% Tax on Prescription Drugs Is Unconstitutional

by Tyler Martinez July 19, 2024

Blog 

NTUF Submits Comments on the Proposed Student Loan Regulation

by Lindsey Carpenter July 19, 2024

Blog 

Supreme Court Punts on Resolving Netchoice Cases but Signals Its Ready to Overturn Texas and Florida Laws

by Tyler Martinez July 02, 2024

Press Release 

NTUF's Taxpayer Defense Center Reacts to NetChoice Decision

by Tyler Martinez, Courtney Manley July 01, 2024

Press Release 

NTUF Reacts to Supreme Court’s Moore v. United States Decision: 7-2 Ruling Rejects Lower Court’s Ruling on a Wealth Tax

by Courtney Manley June 20, 2024