Carlos Kepke had been charged with helping private equity billionaire Robert F. Smith evade taxes.
The popular method of tax avoidance involves the 2010 Foreign Account Tax Compliance Act, or FATCA.
The SEC's investigation delves into whether asset managers are making the proper disclosures to investors.
IRS says Carlos Kepke is one of the enablers who has help Americans hide untaxed billions abroad.
Allianz has agreed to pay $6 billion to clean up the mess.
Authorities say Greg Tournant sold lies to investors that cost customers, and now Allianz, billions.
A Texas woman says a man she met online scammed $8 million left by her murdered father. She's now suing crypto exchanges.
Billionaire Robert Brockman is facing the largest U.S. tax-evasion case against an individual.
The IRS is cracking down on syndicated land conservation deals it calls tax shelters for the wealthy.
The software mogul is using tax havens and property transfers to family, said the Justice Department.