The New York Time has this article: Katie Benner and Michael Forsythe, Whistle-Blower Says Credit Suisse Helped Clients Skip Taxes After Promising to Stop (NYT 3/13/21), here, reporting allegations for continuing misconduct after the 2014 plea agreement. See Credit Suisse Pleads to One Count of Conspiracy to Aiding and Assisting (Federal Tax Crimes Blog 5/19/14; 5/20/14), here, and Credit Suisse is Sentenced: Is It just a Wrist Slapping (Harder than UBS But Is It Enough)? (Federal Tax Crimes Blog 11/21/14), here.
The whistleblower started making the allegations even before the Credit Suisse plea agreement and has continued making allegations of misconduct after. The whistleblower’s attorney, Jeffrey Neiman (web page here), alleges that his clients has names of U.S. persons whom Credit Suisse continued to assist in cheating on U.S. tax and is submitting information to the IRS’s Whistleblower Office. According to the article, earlier submissions by this whistleblower led to the conviction of Dan Horsky, whose conviction and sentencing I reported earlier. See Horsky is Sentenced for Major Offshore Accounts (2/11/17; 2/12/17), here.
As readers know, there are substantial potential rewards for whistleblowers (15-30% of collected proceeds which includes FBAR penalties). See § 7623(b), here. For Horsky alone his tax exceeded $18 and FBAR penalty was $100 million. See Former Business Professor Pleads Guilty to Tax Related Crimes; In Addition, Will Pay $100 Million FBAR Penalty (Federal Tax Crimes Blog 11/4/16; 11/9/16), here. So, if the whistleblower received an award for that, he would have gotten at least 15% of that amount and perhaps more up to 30%. And, apparently, the whistleblower is not claiming more whistleblower awards.