We follow digital banking startups closely. And have since the very first one, Security First Network Bank, launched 30 years ago. But it took almost 20 years after that before a compelling startup came along focused on U.S. small- and mid-sized businesses.

That innovator? Mercury Technologies*, founded in San Francisco 2017 and launched in 2019. In those past 7 years it has grown to serve more than 100,000 businesses and be valued at $4 billion. Mercury has become one of the fastest-moving players in SMB finance by expanding from a simple business bank account into something much bigger.

Over the past year, Mercury has shipped a steady stream of updates across payments, treasury, automation, and even personal banking. The result is a platform that increasingly looks less like a bank and more like a full financial operating system for small businesses.

Here’s what’s new and why it matters to small business owners.


1. Real-Time Payments: Cash Flow Just Got Faster

One of the most important updates is Mercury’s rollout of real-time payments (RTP). Businesses can now receive funds in seconds, 24/7, including payments from platforms like Stripe, Amazon, and Square.

Why it matters:
For SMBs, cash flow timing is everything:

  • No more waiting 1–3 days for ACH
  • Faster reinvestment into inventory, payroll, or ads
  • Better visibility into actual available cash

This closes a major gap between fintechs and traditional banks, where payment speed has historically lagged.


2. Treasury & Yield: Putting Idle Cash to Work

Mercury has continued expanding its Treasury product, aimed at helping businesses earn yield on cash balances.
Recent upgrades include:

  • Lowered minimum balance to $250,000
  • Same-day access to funds
  • Integration with accounting tools like QuickBooks and NetSuite

Why it matters:
Most SMBs still leave cash sitting in low-yield accounts. Mercury is pushing a different model:

  • Operating cash stays liquid
  • Excess cash is automatically moved into yield-generating portfolios
  • No need to manage separate brokerage relationships

This is a direct response to rising interest rates—and a meaningful way for SMBs to generate incremental income without changing operations.


3. Automation & Back-Office Tools

Mercury is also moving aggressively into finance automation, traditionally owned by accounting software.
Recent releases include:

  • Bulk transaction categorization
  • Receipt forwarding for reimbursements
  • Improved auto-transfer rules
  • Vendor tracking and payment insights

Why it matters:
For small business owners, finance work is often fragmented:

  • Banking in one tool
  • Expenses in another
  • Accounting somewhere else

Mercury is trying to collapse that stack. The practical impact:

  • Less manual bookkeeping
  • Faster month-end close
  • Fewer errors and missed categorizations

This is especially valuable for lean teams without a dedicated finance function.


4. AI-Powered Search & Insights

Mercury has also introduced natural language search across transactions. Instead of filtering manually, you can now ask:

  • “Show transactions over $1,000 last month”
  • “Find payments to this vendor this year”

Why it matters:
This is a subtle but important shift toward AI-native banking. For small business owners:

  • Faster answers without exporting to Excel
  • Easier financial visibility
  • Less reliance on accountants for basic questions

Over time, this kind of interface could replace traditional reporting workflows entirely.


5. Mercury Personal: Blurring Business and Personal Finance

The biggest strategic launch is Mercury Personal, now fully available. Key features include:

  • High-yield savings (~3%+ APY range)
  • Integrated investing (ETFs and Treasuries)
  • Joint accounts and shared access
  • Global payments and ATM reimbursements

Why it matters:
Many SMB owners already mix business and personal financial decisions:

  • Taking distributions
  • Managing taxes
  • Reinvesting profits

Mercury is leaning into that reality by offering one platform for both business and personal money This reduces friction:

  • No more moving money between banks
  • Unified view of finances
  • Easier cash allocation decisions

It’s also a clear move to increase customer lifetime value.


6. Invoicing, Tax, and Compliance Features

Mercury has added more tools around tax and payments workflows, including:

  • 1099 generation and filing
  • Mobile invoicing capabilities
  • Improved reporting tools

Why it matters:
These features push Mercury into territory traditionally owned by:

  • QuickBooks
  • Bill.com
  • Stripe Invoicing

For SMBs, that means:

  • Fewer tools to manage
  • Lower software costs
  • Simpler workflows across payments and reporting

7. Permissions & Team Controls

Mercury has expanded role-based access and permissions for teams. This allows businesses to:

  • Assign roles to employees or contractors
  • Set spending limits
  • Provide view-only access to accountants or advisors

Why it matters:
As SMBs grow, financial control becomes more complex.

This update enables:

  • Better internal controls
  • Reduced fraud risk
  • Cleaner collaboration with external partners

8. Big Strategic Move: Applying for a Bank Charter

Finally, Mercury has applied for a national bank charter. The goal:

  • Become a regulated bank
  • Reduce reliance on partner banks
  • Gain more control over products and margins

Why it matters:
If approved (and we expect it will), this could:

  • Increase trust
  • Improve stability
  • Enable lending products

For SMBs, it signals Mercury is moving toward becoming a primary financial institution—not just a fintech layer.


The Bottom Line for Business Owners

Mercury is no longer just a business checking account. During the past year, the company has expanded into:

  • Payments infrastructure (RTP)
  • Cash management (Treasury)
  • Automation (expense + categorization)
  • Personal finance (Mercury Personal)
  • Tax and invoicing tools

The direction is clear:

Mercury is building an all-in-one financial stack designed to replace not only your bank, but your entire finance workflow.

Company Vitals

Mercury Technologies*
FAB Score = 914 (up 100 from March ’26)
HQ: San Francisco Bay Area
Founded: 2017
Partner banks: Choice Financial Group, Evolve Bank & Trust, and a network of 20 banks to hold excess deposits; Patriot Bank (IO card issuer)

Traction
– More than 200,000 customers (Techcrunch, May 2024)
– Current run rate of $4B in payments per month (Techcrunch, May 2024); $50B processed in 2022, double the $23B in 2021
– Raised $452M (Crunchbase) including $300M in March 2025, $120M in 2021
– Valuation: $4.3B (FintechLabs)
– Website visits (March 2026): 3.7 million (SimilarWeb), 2.9M (SEMRush)
– Employees (Pitchbook):  1,340 vs 800 in Sep ’25; 999 in Feb ’25; 882 Nov ’24 & Aug ’24; 728 in March ’24; 681 Jan ’24; 669 Aug ’23

Social
– LinkedIn 105,000 followers (1,480 employees vs. 1,310 in Oct ’25; 1,220 in June ’25, 1,090 in Mar ’25; 987 in Dec ’24, 952 Sep ’24, 806 May ’24)
– iOS app: 4.9 (11,000 reviews vs. 8,400 in Oct ’25; 7,600 in June ’25; 6,600 in Mar ’25; 6,100 in Jan ’25)
– Trustpilot: 4.1 (2,380 reviews vs. 2,030 in Oct ’25; 1,760 in June ’25; 1,420 in Mar ’25; 1,220 in Jan ’25)

*Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC. The IO Card is issued by Patriot Bank, Member FDIC, pursuant to a license from Mastercard International Incorporated.

** The FAB score, Fintech Attention Barometer, is a proxy for the overall size of a private company since they typically do not release traditional metrics (# customers, deposits, AUM, etc). The score is based on VC funding, website traffic, mobile downloads, and the number of employees. It’s a work in progress, so expect changes in the formula.