Nationwide Tax Defense: Founded 1978

The IRS Contacted You. Here Is What Happens Next.

Criminal investigation. Civil audit. Levy. Garnishment. Offshore accounts. Whatever brought you here – we have handled it before. In federal court. In all 50 states.

Confidential. No obligation. We respond within a few business hours.

TMG by the Numbers

1978 Year Founded
3 Generations of Tax Defense
55+ Criminal Cases Tried
25 States
40% Acquittal Rate at Trial
2 Continents: Licensed to Practice

What Kind of Help Do You Need?

Every IRS crisis is different. Follow the path that describes your situation.

Criminal Tax Defense

An IRS Special Agent Contacted You

Special Agents carry badges and weapons. This is not a routine audit. You need a criminal tax attorney, now, before you say another word.

  • IRS Special Agent contact or grand jury subpoena
  • Bank records summoned without your knowledge
  • CPA said: “I can’t help you with this”
55+ federal cases · 25 states · 40% acquittal rate
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Civil Tax Defense

The IRS Is Coming After What You Have

Levy. Lien. Garnishment. Audit. We stop IRS collection actions in their tracks and resolve tax debt, permanently, through every legal tool available.

  • IRS Notice of Levy, CP504, or LT11
  • Bank account frozen or wages being garnished
  • Federal tax lien filed against your property
Offer in Compromise · Appeals · Tax Court · CNC
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Comprehensive Tax Defense

Your IRS Problem Is Complex

Foreign accounts. Offshore trusts. Cryptocurrency. Payroll tax. Unfiled returns. Complex matters that go beyond a single audit require deeper expertise.

  • FBAR, FATCA, or offshore account issues
  • Multiple years of unfiled returns
  • Cryptocurrency, foreign trusts, or captive insurance
International · Multi-year · High-stakes resolution
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Donald “Mac” MacPherson, founder of The MacPherson Group1978
Nathan MacPherson, second-generation tax defense attorney2000s
Noah MacPherson, third generation of the MacPherson family practiceToday

Our Firm

Three Generations. One Mission.

Donald “Mac” MacPherson founded this practice in 1978 with a single conviction: that every American (regardless of income, political views, or prior mistakes) deserves skilled, principled representation when the federal government comes for them.

His son Nathan carried that conviction through law school, into federal courts across the country, and into a practice spanning criminal tax defense, civil controversy, and complex international matters. Nathan is admitted in California, Idaho, and (uniquely) as a Solicitor of the Senior Courts of England and Wales. He trained at Freshfields Bruckhaus Deringer in Frankfurt and London. He has argued before the IRS, Tax Court, and federal courts in 25 states.

Today, Nathan’s son Noah works alongside him as a paralegal, the third generation in a family that has never treated tax defense as a transaction.

“We passed the bar before AI. We know these cases from the inside, not from an algorithm.”
Nathan MacPherson, J.D.
Meet the MacPherson Family

From Nathan

If You Just Received Something From the IRS

Whatever notice, summons, or visit you received, I have seen it before. In this brief video I explain what it means and what your options are.

Client Results

People Like You. Cases Like Yours.

The Advisors

Meet Our Team

Donald “Mac” MacPherson, founder and of counsel

Donald “Mac” MacPherson

Founder · Of Counsel

  • Founded The MacPherson Group, 1978
  • Author: Tax Fraud and Evasion: The War Stories
  • Founded 1978, nearly five decades of federal tax defense
Full biography →
Nathan MacPherson, attorney and counselor at law

Nathan MacPherson

Attorney and Counselor at Law

  • Admitted: California, Idaho, England & Wales
  • Trained: Freshfields Bruckhaus Deringer, Frankfurt & London
  • 55+ federal criminal tax cases tried
  • Oxford University; University of Augsburg; Drake Law
Full biography →
Bradley (Scott) MacPherson, J.D., available for select consultations

Bradley (Scott) MacPherson, J.D.

Available for Select Consultations

  • J.D., admitted to practice in Arizona
  • Entered the Catholic priesthood
  • Available for select consultations
Noah MacPherson, paralegal

Noah MacPherson

Paralegal

  • A.S. Political Science & Pre-Law (graduating 2026)
  • Case research and client communications
  • Third generation: MacPherson family practice

The IRS Will Not Wait. Neither Should You.

Contact us today, confidentially and without obligation. We typically respond within a few business hours. All communications are protected by attorney-client privilege from your first contact.

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