• JD Power survey of more than 23,000 US adults reveals fintech satisfaction advantage
• Digital providers score 699 among millennials versus 672 for national banks
• Gen Z satisfaction with online banks and fintechs reaches 701
• Digital providers hold 20% of existing primary checking relationships but capture 28% of new accounts
• Fee avoidance, real-time balances and financial management tools drive satisfaction
• American Express, SoFi and Chime lead among millennials
• OnePay and SoFi rank highest among Gen Z
• Traditional banks face increasing competition for younger customers

Online banks and fintechs are outperforming traditional financial institutions in customer satisfaction among millennials and Generation Z, raising concerns about established banks' ability to attract and retain the next generation of banking customers.

Research from JD Power, based on a survey of more than 23,000 US adults, reveals that digital-first financial providers are gaining ground through lower fees, faster account updates and financial management tools that appeal to younger consumers.

The 2026 US Millennial and Gen Z Checking Satisfaction Study found that online banks and fintechs achieved an average satisfaction score of 699 out of 1,000 among millennials, compared with 672 for national banks.

Among Gen Z consumers, digital providers recorded a score of 701, outperforming national and retail banking competitors.

The findings suggest that traditional banks face an increasingly significant competitive challenge as younger customers become a dominant source of new checking account relationships.

Online banks and fintechs currently account for 20% of primary checking accounts held by millennials and Gen Z consumers. However, their share rises to 28% among newly opened accounts, indicating a growing shift toward digital providers.

Paul McAdam, senior director of financial services at JD Power, emphasized the commercial importance of these demographics.

"Two-thirds of all the new primary accounts - the ones that everybody wants - are coming from these two segments," McAdam said.

The research identifies fee transparency and financial protection as particularly important factors influencing customer satisfaction.

Digital providers have successfully positioned themselves as alternatives to traditional banking fee structures, frequently eliminating routine charges and restricting overdrafts.

"A lot of it really does start with the idea that the fintechs are protecting their customers from fees, helping customers to protect their money," McAdam said.

He added that many fintechs have fundamentally changed customer expectations around banking charges by emphasizing fee avoidance rather than simply reducing costs.

Account visibility represents another significant competitive advantage.

Among younger customers using online banks and fintechs, 85% reported that their account balances updated immediately or within hours. The equivalent figure for traditional banks was just 70%.

This difference highlights the growing importance of real-time financial information, particularly among consumers who expect immediate access to accurate account balances and transaction details.

Digital providers also performed strongly in delivering financial management capabilities that extend beyond conventional checking services.

These include credit score monitoring, credit-building assistance, subscription management and tools for tracking recurring payments.

Although established banks increasingly offer similar functionality, JD Power found that younger customers were more likely to use these services through online banks and fintech platforms.

"These younger customers are definitely telling us that they're using these tools more at the online banks and fintechs," McAdam said.

He suggested that such capabilities strengthen customer relationships by demonstrating how checking accounts can contribute to broader financial wellbeing.

Among millennials, American Express, SoFi and Chime achieved the highest customer satisfaction rankings. OnePay and SoFi led among Gen Z respondents.

The findings underline a wider transformation in retail banking, where customer experience, transparent pricing and digital functionality are becoming increasingly important competitive differentiators.

For established financial institutions, the challenge extends beyond replicating fintech technology.

Banks must also demonstrate that their products actively support customers' financial objectives while maintaining the trust and regulatory safeguards associated with traditional banking.

As younger consumers account for an increasing proportion of new primary checking relationships, the ability to deliver convenient, transparent and financially empowering services could prove decisive in determining future market share.