The furor over banks leveraging new fees for basic banking services in the wake of Dodd-Frank reforms erupted into a class action lawsuit brought by customers alleging funny business in how the fees were assessed. Over the past few months, several banks have agreed to pay millions of dollars to settle the litigation.

US Bancorp (NYSE: USB) is the latest in a parade of banks agreeing to settle rather than go to court. The settlement of $55 million comes hot on the heels of another involving PNC Financial, which has consented to pay $90 million to settle charges related to overzealous application of overdraft fees on debit cards linked to customers' checking accounts. In May, Toronto-Dominion Bank agreed to pay $62 million, and this past February, JPMorgan Chase (NYSE: JPM) settled for $110 million. So far, the biggest chunk is being paid out by Bank of America (NYSE: BAC), which agreed to shell out $410 million early last year for the same offense.

Hefty fees were levied fraudulently
The heart of the matter entails fees of between $25 and $35 assessed by banks in response to overdrafts in customers' checking accounts caused when they used their debit cards. The issue wasn't so much the fees, but the method that customers claimed the banks used to levy them: The banks would process the transactions according to size, applying the largest first, instead of processing them in chronological order. This technique caused overdrafts that would not have occurred otherwise, according to the lawsuit.

Of course, the banks admit no wrongdoing, and they are part of a passel of 35 institutions named in the lawsuit, which encompasses 15 lawsuits that were consolidated three years ago. Of those 35, US Bancorp is the 14th to settle; other large institutions, such as Citigroup (NYSE: C), Capital One Financial, and Wells Fargo (NYSE: WFC), haven't done so. Wells Fargo is currently appealing a prior $203 million award in California.

Fool's take
While it is not surprising that none of the banks have officially admitted blame regarding the system used to process card transactions, some have made changes and public comments that infer that they know exactly what they were doing. Right around the time of its settlement, Bank of America stopped the service altogether, opting to disallow overdrafts at all, and CEO Brian Moynihan commented to The Wall Street Journal that the practice wasn't "the right way to treat" customers.

Two months after B of A's change of heart, Citibank announced that it would begin processing checks from smallest to largest, instead of the other way around. JPMorgan just recently decided to do away with overdraft fees on any transaction under $5.

Though banks have rationalized the practice at the crux of the lawsuit, saying that larger checks are usually for more important bills such as mortgages and therefore should be processed first, the reality is that customers were incurring large fees for each check that overdrew the account. It was the dodgy way the banks conducted themselves that irked customers, not the actual fee.

Why do banks continue to engage in underhanded business practices when they anger customers and incur legal bills and huge settlement costs? No one seems to dispute that banks have a right to institute fees -- they just need to be transparent about the process. Surely, banks could be doing better things with their money, like padding their capital reserves and paying dividends to investors.

Maybe someday.

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