Enabling tax evasion is expensive. Since banks continue to do it, the fines should be higher:
A major Swiss bank admits it conspired with US taxpayers & others to hide >$5.6B from the IRS.
Banque Pictet has agreed to pay about $122.9M in restitution & penalties.
If the bank complies with the terms of its deal, the DOJ will defer prosecution for three years and then dismiss a charge of criminal conspiracy to defraud the IRS.