Bank of America will pay a $1.2 billion fine for money-laundering failures, under a penalty reported by The Guardian.

The sanction targets the second-largest US bank by assets. It concerns weaknesses in the systems banks must run to detect and report suspicious financial activity.

What are the failures about?

Anti-money-laundering rules require banks to monitor customer transactions. They must flag patterns that could signal criminal proceeds moving through the financial system. Regulators found Bank of America's controls wanting on that front, according to the report.

The scale matters. A $1.2 billion penalty puts this case in the top tier of US enforcement actions against banks for compliance breakdowns — comparable to a small bank's entire annual profit, wiped out by a single failure to police its own pipes.

What does the fine change for practitioners?

For compliance teams, the message is blunt. Regulators will keep testing whether monitoring systems actually work in practice, not just on paper. Banks should expect tougher document requests, deeper look-back reviews of past transaction alerts, and slower approval timelines for new products that touch higher-risk clients.

For outside counsel, the decision creates fresh work. Banks facing similar exposure will want internal reviews, remediation plans, and negotiations over the scope of any settlement before regulators come knocking. A one-billion-dollar-plus number also resets the benchmark that enforcement lawyers use when advising clients on reserve and disclosure decisions.

What comes next?

Bank of America must now remediate. The reported $1.2 billion figure resolves the money-laundering allegations, but compliance commitments typically extend for years after penalties of this size. Shareholders, in turn, will watch whether the bank discloses further related exposure.

The Guardian reported the fine. The article did not specify the issuing regulator, the exact settlement date, or the case reference.

This article draws solely on the reported headline and will be updated as primary-source details emerge.