From the FDIC press release
In accordance with a provision in Dodd-Frank, the FDIC is proposing to change the assessment base from adjusted domestic deposits to average consolidated total assets minus average tangible equity.
As described in this Reuters article
, this change would result in large banks paying more. It may also encourage large banks to attract more domestic deposits.
Bank of America, JPMorgan Chase & Co and Citigroup combined would pay about $1 billion more annually in assessments under the new system, according to industry estimates.