How Nubank Could Reprice U.S. Deposits

Nubank can change the economics of deposits that it has never won. The Brazilian digital bank has conditional approval for a U.S. national bank charter and plans to open by 2027, and most coverage is asking whether it can take a meaningful share of the market from American institutions. Jim Marous gives the pragmatic take: Share is the wrong thing to watch. Nubank built more than 130 million customer relationships in Latin America by leading with credit and earning the deposits afterward, in markets where many people had kept their savings at home rather than trust a bank. Its global platform now runs at an efficiency ratio below 20%, compared with a U.S. norm near 60%. That gap is the story. It lets Nubank pay depositors more than a typical U.S. bank or credit union can, and still earn a stronger margin, using deposit rates as an acquisition channel the way it did with Cuenta Nu in Mexico, where the yield went from 9% to 15% and pulled in $3.8 billion in 18 months. The exposure for American institutions shows up as margin, not attrition. Nubank does not have to reprice every deposit in the country. It only has to reset the price of the next dollar you need to keep or replace, and with a national average savings-account rate under half a percent against the best rates near ten times that, your customers are already comparing. Jim Marous is co-publisher of The Financial Brand and host of the Banking Transformed podcast. This Banking Insights episode covers what Nubank built in Brazil, why Chime’s track record shortens Nubank’s path, the one fair-lending question that could slow its rollout, and three moves banks and credit unions should make before someone else sets their deposit floor. Subscribe to Banking Transformed for new episodes multiple times each week.