The archive · Money & Fintech · Strategic decision · 2014–2024
Synapse's banking-as-a-service bet: $50M raised, then Chapter 11 and $200M frozen
A fintech middleman that connected apps to banks filed Chapter 11 in 2024; up to $95M of customer funds went missing and $200M stayed frozen.
Synapse Financial Technologies
What the business is
Banking-as-a-service middleware: an API that let fintech apps embed accounts, cards, and payments without holding their own bank charter.
How it started
Sankaet Pathak founded Synapse in 2014 as a University of Memphis student, with cofounder Bryan Keltner, betting that digital apps would rather rent banking infrastructure than build it; by 2022 it reportedly processed $76B across 18M end users for clients including Mercury, Dave, Yotta, Juno, and Copper.
What happened
Growth brought just over $50M from a16z, Trinity, and Core Innovation Capital, with roughly 60% of revenue coming from Mercury at the peak. In 2023 Evolve Bank ended the relationship and Mercury moved to work with Evolve directly; Synapse cut 40% of staff in October 2023. It filed Chapter 11 on April 22, 2024, planning a $9.7M asset sale to TabaPay — which walked away in May.
How it ended up
Under pressure from the U.S. Trustee, the case moved toward Chapter 7 liquidation. As many as 100 fintechs and 10M end users were hit; about $200M of customer money stayed frozen, with the trustee estimating up to $95M missing. Copper discontinued its bank accounts, Yotta users were locked out, Mainvest shut down citing Synapse, and a DOJ criminal investigation was underway by March 2025.
Background
Synapse was the invisible plumbing of the fintech boom: an API that let apps like Yotta, Copper, and Mercury offer real bank accounts, debit cards, and payments without holding a bank charter of their own. Founded by Sankaet Pathak in 2014 while he was a student at the University of Memphis, it raised just over $50 million from Andreessen Horowitz, Trinity Ventures, and Core Innovation Capital, and by 2022 was reportedly processing $76 billion in transactions across 18 million end users. The bet was that fintechs would rather rent regulated banking rails than build them.
The model depended on a handful of chartered banks holding the actual deposits. In 2023 that dependence turned fatal: Evolve Bank & Trust, Synapse's key partner, ended the relationship, and its largest client, Mercury — about 60% of revenue — moved to work with Evolve directly. After two rounds of layoffs, Synapse filed for Chapter 11 on April 22, 2024, with a fire-sale plan: TabaPay would buy its assets for $9.7 million. Weeks later TabaPay walked away, and the U.S. Trustee pushed to convert the case to Chapter 7 liquidation.
The collapse froze roughly $200 million in customer money and, per the court-appointed trustee, up to $95 million went missing. Teen-banking app Copper had to cut off accounts overnight; Yotta users sued; Mainvest shut down citing Synapse's bankruptcy; senators pressed the companies and investors to restore access. By March 2025 the trustee was still reconciling ledgers, Evolve and Synapse blamed each other, and the Justice Department had a criminal investigation open.
What has to be true
- Revenue concentration: Mercury was roughly 60% of the business, and when it left for a direct bank relationship the model had no second act.
- The trust layer was unregulated: no charter, no custody, no required audit trail — so when partner ledgers disagreed, no one could say where the money was.
- The fire sale failed: the $9.7M TabaPay deal, the only plan that would have kept clients whole, collapsed weeks after filing.
- Deposits lived on someone else's balance sheet, so a private dispute between Synapse and Evolve froze money that belonged to consumers.
What can be applied
A middleman whose asset is trust between consumers and chartered banks turns every partner dispute into a customer-funding crisis; when the bridge breaks, the users who fall never signed with you.
Aftermath
As of March 2025, court-appointed trustee estimates put up to $95 million of customer funds missing and roughly $200 million frozen; Evolve began returning some money in November 2024, but Yotta customers were far from whole and a class action continued. A DOJ criminal investigation was underway. Founder Sankaet Pathak raised $11 million for a new robotics startup, Foundation, in August 2024 while the bankruptcy still ran.
Sources
- SoftBank-backed TabaPay is buying the assets of a16z-backed Synapse, after it filed for bankruptcy
- Teen fintech Copper had to abruptly discontinue its banking, debit products
- Synapse's collapse has frozen nearly $160M from fintech users — here's how it happened
- The spectacular Synapse collapse: Inside the ugliest divorce in fintech, which left $200 million in customer money frozen
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