U.S. casino and racetrack tax refunds, recovered by the attorney who has won them in federal court

Patrick W. Martin is an international tax lawyer who has recovered tens of millions of dollars in withheld taxes for non-resident gamblers who won at U.S. casinos, race tracks, and other games of chance. He has obtained over $15M in tax refunds for his clients, including a $13.3 million settlement with the Tax Division of the U.S. Department of Justice.

He works on a success-fee-only basis. If he isn't successful in recovering your withheld taxes, he doesn't charge a legal fee.

$15M+ recovered for clients
$13.3M DOJ Tax Division settlement
100% success-fee — no recovery, no fee
32+ years international tax

Recognized by

Best Lawyers in America
Lawdragon 500
Legal 500
Martindale-Hubbell AV Preeminent
Best Lawyers in America
Lawdragon 500
Legal 500
Martindale-Hubbell AV Preeminent

About

Recognized international tax counsel

Patrick W. Martin, International Tax Attorney

Patrick W. Martin is a U.S. tax lawyer licensed in California, Washington D.C., and Texas, who has practiced international tax law for more than 32 years. He is an international tax shareholder and co-leader of the international tax practice at Chamberlain Hrdlicka, a nationally ranked tax-focused law firm identified as the best law firm in tax and tax controversy in 2025 by Best Lawyers: “Law Firm of the Year”. He has been identified by his peers in Best Lawyers in America® (Tax Law) every year from 2015 through 2025, is a Fellow of both the American College of Tax Counsel (ACTC) and the American College of Trust and Estate Counsel (ACTEC), and is the former chair of the Taxation Section of the State Bar of California.

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Landmark case

Patrick W. Martin pioneered the modern legal framework governing federal tax refunds for nonresident gamblers.

As lead counsel in the landmark case Free-Pacheco v. United States, he ultimately was successful when he challenged the IRS's longstanding withholding tax position, ultimately securing a settlement exceeding $13.3 million in tax refunds. Since that landmark litigation, every federal tax refund case Mr. Martin has brought on behalf of nonresident gambling clients applying those legal principles has resulted in a successful recovery. 100% success. His work has established him as the nation's foremost authority in this highly specialized area of international tax litigation.

Who this affects: Non-resident gamblers from any country — not just treaty-exempt countries — who had 30% withheld on gross winnings without any accounting for same-session losses; slot machine players in particular, since IRS Notice 2015-21 created a specific “per session” safe harbor for calculating wagering gains and losses.