Mercury Raises $200M Series D at $5.2B Valuation and Wins OCC Conditional National Bank Charter

While much of the fintech sector has struggled to recover from post-pandemic valuation resets, startup banking platform Mercury has bucked the trend in spectacular fashion. In late April and May 2026, Mercury solidified its position as the dominant operating platform for startups and SMBs by raising a massive $200 million Series D funding round, securing conditional OCC approval for a national bank charter, and launching an automated suite of AI financial agents.

$200M Series D and $5.2B Valuation

The $200 million Series D round was led by TCV, valuing the company at $5.2 billion—a 49% increase from its previous valuation of $3.5 billion in 2021. Mercury's financial strength made it a highly attractive candidate for investors: the company is highly profitable, serves over 300,000 startup and small-business clients, and generates approximately $650 million in annualized revenue.

Winning the Conditional OCC National Bank Charter

On April 27, 2026, Mercury achieved a monumental regulatory milestone when the Office of the Comptroller of the Currency (OCC) granted preliminary conditional approval for its de novo charter application to establish Mercury Bank, N.A. (National Association), to be headquartered in Utah.

Key details of the charter and its transition include:

• Leadership: Mercury appointed Jon Auxier—an alum of SoFi, Goldman Sachs, and Green Dot—as the CEO of the proposed Mercury Bank. Auxier previously helped lead the implementation of SoFi’s own national bank charter, which was conditionally approved in 2022.
• Product Autonomy: Mercury CEO and co-founder Immad Akhund highlighted that the charter is essential for closing key product gaps: "Our customers have been asking for Zelle, for expanded lending, for payment infrastructure we actually control. We couldn’t give them those things without a bank charter... This is how we start closing them."
• Sponsor-Bank De-risking: Obtaining a charter allows Mercury to direct-connect to Fedwire and ACH, offer FDIC-insured deposits, and issue credit cards under its own bank, dramatically reducing its long-term reliance on sponsor banks. Mercury's current partner network includes Choice Financial Group, Column National Association, and card issuer Patriot Bank.
• Next Steps: The conditional approval transitions Mercury Bank into its "organization phase," during which it must satisfy capital, governance, and preopening conditions laid out by the OCC, alongside securing final approvals for deposit insurance from the FDIC and bank holding company status from the Federal Reserve.

Part of a Fast-Tracked De Novo Wave

Mercury’s approval is a flagship event in a broader de novo chartering surge in 2026, fostered by a friendlier regulatory landscape under the Trump administration. With OCC Comptroller Jonathan Gould and FDIC Chair Travis Hill backing an increase in de novo chartering, the median approval timeline for bank charters has plummeted to 166 days (down from a high of 321 days in 2024), according to Klaros Group.

This regulatory shift has enabled a wave of other major approvals and applications:

• Nubank received conditional OCC approval for its national bank charter on January 29, 2026.
• Erebor Bank achieved a full de novo national bank charter in February 2026.
• UBS gained final approval for a US national bank charter in 2026.
• Ford, GM, and Edward Jones secured conditional industrial loan company (ILC) charter approvals from the FDIC.
• Upstart, Revolut, Bunq, and Mission Lane have active applications undergoing fast-tracked review.

Launching AI Financial Agents

Capitalizing on its unified platform architecture, Mercury also launched a suite of AI financial agents designed to automate complex back-office workflows for startups. These agents handle tasks such as real-time cash flow forecasting, automated tax compliance prep, and intelligent accounts payable routing, positioning Mercury as a comprehensive, AI-native operating system for business finance.