Consumers at the largest U.S. banks have seen the traditional $35 overdraft fee all but disappear after federal regulators rewrote the rules governing how those charges work. But millions of Americans who bank at smaller institutions or credit unions still face those same fees, and new federal data shows some credit unions depend heavily on that revenue. The split creates a two-tier system where the bank a person chooses determines whether an accidental overdraft costs $5 or $35.
Why the overdraft fee gap between big and small banks matters right now
The Consumer Financial Protection Bureau finalized a rule targeting overdraft practices at very large financial institutions, giving covered banks three options: charge no more than $5, set a fee limited to actual costs and losses, or treat overdraft lending like any other form of credit with full disclosure requirements. By limiting what banks can charge for courtesy overdrafts or forcing them to treat those advances as open-end credit, the rule aims to align costs more closely with the actual risk to the bank rather than using overdraft as a profit center. The new overdraft framework applies only to very large financial institutions, leaving community banks and credit unions outside its direct reach.
That regulatory gap is where the tension sits. Credit unions and smaller banks can still charge $35 or more per overdraft, and many do. For a household living paycheck to paycheck, the difference between a $5 fee and a $35 fee on a single debit transaction is not abstract. It can mean the difference between covering groceries and falling further behind on rent or utilities. Because overdraft fees often hit in clusters when a balance dips below zero, a single day’s worth of transactions can generate triple-digit charges at institutions that have not reformed their fee schedules.
The CFPB has framed its action as closing a longstanding loophole that allowed banks to treat overdraft as a courtesy service while charging rates that would be illegal if marketed as a line of credit. In its announcement that it was closing the overdraft loophole, the bureau emphasized that very large banks had come to rely on overdraft as a stable revenue stream, disproportionately paid by consumers with the lowest balances. The question now is whether smaller institutions will voluntarily follow the big-bank trend toward lower, cost-based fees or hold onto overdraft revenue as long as regulators let them.
CFPB data and NCUA research show a sharp revenue divide
The scale of change at large banks is measurable. Overdraft and nonsufficient fund fee revenue in 2023 fell more than 50% compared to pre-pandemic levels, saving consumers over $6 billion annually, according to CFPB research. The agency’s broader analysis of overdraft trends shows that large institutions have not only cut fees but also changed practices, such as eliminating multiple charges on the same day or reducing the number of transactions that can trigger penalties.
Enforcement actions accelerated the shift. The CFPB ordered Wells Fargo to pay $3.7 billion for widespread mismanagement of auto loans, mortgages, and deposit accounts, with $205 million of that tied specifically to illegal surprise overdraft fees charged even when consumers had sufficient funds at the time of authorization. While that case focused on misconduct rather than fee levels alone, it sent a clear signal that regulators were prepared to scrutinize how banks apply overdraft programs and whether customers understood the risks.
Credit unions tell a different story. The National Credit Union Administration released a research note in early 2025 analyzing overdraft and NSF fee revenue data collected from credit unions using a 2024 third-quarter data slice. The findings flagged that some credit unions rely heavily on this income stream, raising questions about financial stability if that revenue were curtailed. For institutions with thin margins, overdraft fees can represent the difference between a surplus and a deficit, especially when loan growth is slow and interest margins are compressed.
The NCUA’s data collection itself is new, signaling that regulators are paying closer attention to how credit unions price overdraft services even though no binding fee cap applies to them yet. Supervisors now have a clearer picture of which institutions sit at the top of the overdraft revenue distribution and how concentrated those earnings are among a relatively small share of credit unions. That visibility could inform future guidance, examination priorities, or even rulemaking if policymakers decide that member-owned institutions should more closely mirror the consumer protections now standard at the largest banks.
The hypothesis that credit unions with the highest overdraft and NSF revenue, those above the 75th percentile in the NCUA’s dataset, could face membership losses if new guidance mirrors the CFPB’s limits is plausible but unproven. No primary data on account closures or deposit outflows tied to fee levels at individual credit unions has been published, and member loyalty, local branch access, and loan pricing may offset frustration over fees. At the same time, if consumers become more aware that a similar overdraft mistake costs $5 at a megabank but $35 at a neighborhood credit union, competitive pressure could grow from the bottom up.
For now, the overdraft landscape is bifurcated. Large banks are moving toward low, standardized fees under direct regulatory pressure, while smaller banks and credit unions navigate a mix of legacy practices, member expectations, and emerging scrutiny. Whether the system converges on a single, lower-cost model-or hardens into a lasting two-tier market-will depend on how quickly smaller institutions adapt and how aggressively regulators decide to close the remaining gap.
