Illustration: Steph Davidson

Last September, at a law firm overlooking San Francisco Bay, Andrew Penney, a managing director at Rothschild & Co., gave a talk on how the world’s wealthy elite can avoid paying taxes.

His message was clear: You can help your clients move their fortunes to the United States, free of taxes and hidden from their governments.

Some are calling it the new Switzerland.

“How ironic—no, how perverse—that the USA, which has been so sanctimonious in its condemnation of Swiss banks, has become the banking secrecy jurisdiction du jour,” wrote Peter A. Cotorceanu, a lawyer at Anaford AG, a Zurich law firm, in a recent legal journal. “That ‘giant sucking sound’ you hear? It is the sound of money rushing to the USA.”

Rothschild, the centuries-old European financial institution, has opened a trust company in Reno, Nev., a few blocks from the Harrah’s and Eldorado casinos. It is now moving the fortunes of wealthy foreign clients out of offshore havens such as Bermuda, subject to the new international disclosure requirements, and into Rothschild-run trusts in Nevada, which are exempt.

Trident Trust Co., one of the world’s biggest providers of offshore trusts, moved dozens of accounts out of Switzerland, Grand Cayman, and other locales and into Sioux Falls, S.D., in December, ahead of a Jan. 1 disclosure deadline.

No one expects offshore havens to disappear anytime soon. Swiss banks still hold about $1.9 trillion in assets not reported by account holders in their home countries, according to Gabriel Zucman, an economics professor at the University of California at Berkeley. Nor is it clear how many of the almost 100 countries and other jurisdictions that have signed on will actually enforce the new disclosure standards, issued by the Organisation for Economic Co-operation and Development, a government-funded international policy group.

There’s nothing illegal about banks luring foreigners to put money in the U.S. with promises of confidentiality as long as they are not intentionally helping to evade taxes abroad. Still, the U.S. is one of the few places left where advisers are actively promoting accounts that will remain secret from overseas authorities.

Read more in Bloomberg Business