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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 

NTUF Helps Protect Taxpayers in FTC’s Final “Deceptive Fees” Rule

by Joe Bishop-Henchman, Lindsey Carpenter December 19, 2024

Blog 

Biden Administration Asks Supreme Court Not To Take Double Taxation Case

by Joe Bishop-Henchman, Lindsey Carpenter December 12, 2024

Blog 

Protecting Privacy and Advocacy: Dangerous Proposed Amendments to Federal Rule of Appellate Procedure Rule 29

by Tyler Martinez December 11, 2024

Blog 

NTUF Continues the Fight Against 95% Tax as an Excessive Fine

by Tyler Martinez November 13, 2024

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

Op-Ed 

Colorado high court sides with taxpayers over doubling of water district taxes

by Tyler Martinez October 07, 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