Mercury Isn't a Neobank Anymore. The OCC Just Changed Everything.

Mercury has 300,000 customers. A third of all early-stage startups in the United States bank with them. They've been profitable — GAAP and EBITDA — for four consecutive years, hitting $650 million in annualized revenue by Q3 2025. For a fintech, that profile is unusual. For a company about to become an actual bank, it's the foundation that makes the charter credible.

On April 27, the OCC granted Mercury conditional approval to establish Mercury Bank, N.A. — a de novo national bank charter. Two weeks later, Mercury announced a $200 million Series D led by TCV, with Sequoia, Andreessen Horowitz, and Coatue participating. The valuation: $5.2 billion, up 48.6% from the $3.5 billion Series C in March 2025.

The funding story is almost a footnote. The charter is the real inflection point.

The neobank model has always had a structural dependency: partner banks. Evolve Bank & Trust, Blue Ridge Bank, and others provided the FDIC-insured deposits, Zelle access, and federal compliance infrastructure that fintechs couldn't hold themselves. The arrangement works — until it doesn't. Partner banks face their own regulatory scrutiny, their own risk appetites, their own capacity constraints. Every neobank that grew through the 2020s had a ceiling it couldn't see until it hit it.

Mercury's charter removes that ceiling. With Mercury Bank, N.A., they can hold deposits directly, join Zelle, extend credit without a bank partner on the other end of the wire, and operate under a single regulatory relationship with the OCC rather than a fragmented set of partnerships. Jon Auxier, the former SoFi Bank executive tapped to lead the bank entity, is an architect of exactly this transition — he's done it before.

The implications for the startup banking market are structural. Mercury's path validates a model: build excellent product, achieve disciplined profitability, then use that track record to earn regulatory trust. The OCC doesn't hand out de novo charters to companies that look like fintechs. Mercury convinced them it already behaves like a bank.

The question for the rest of the market is whether this is Mercury's competitive moat or just the first step in a category change. If the startup banking niche can sustain a real bank, the economics look very different — and so does the exit landscape.