A Colombian-American entrepreneur based in Miami-Dade County pleaded guilty to federal charges on Monday related to a tax-evasion conspiracy that prosecutors estimate involved $90 million in bank accounts in Andorra, Israel, Panama, and Switzerland.

A Florida woman who holds dual U.S. and Colombian citizenship pleaded guilty to conspiring to defraud the United States by concealing tens of millions of dollars in undeclared foreign financial accounts, filing false tax returns, and evading taxes, according to the Department of Justice.