Mercury runs online banking for startups and small businesses, pairing business accounts and corporate cards with built-in software for bill pay, expense tracking, and bookkeeping. It rose to prominence in 2023, when thousands of startups fleeing the collapse of Silicon Valley Bank moved their cash to Mercury within days. Customers open accounts online and use one dashboard to wire money, give employees cards, pay invoices, and invest spare cash in money market and bond funds. Mercury makes money from interest on customer deposits and from card fees, along with paid treasury and software plans. It was founded in 2017 and is based in San Francisco.
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Company Size
1,001-5,000
Company Stage
Series D
Total Funding
$750.9M
Headquarters
San Francisco, CA
Founded
2017
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Total Funding
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Mercury launches integrated payroll solution to automate compliance across all 50 states. Mercury has launched an integrated payroll system, Mercury Payroll, allowing businesses to manage W-2 and 1099 payments, benefits, and tax compliance directly from their existing banking platform. By embedding payroll into the core financial account, the fintech aims to eliminate the administrative friction of third-party integrations and manual compliance tracking across all 50 US states. What was announced. Mercury Payroll is a full-stack solution covering both W-2 employees and 1099 contractors. The platform handles health benefits - including medical, dental, and vision - alongside 401(k) plans and the associated administrative burden of tax filings and state registrations. The product is built on the technology of Central, a startup Mercury acquired in April to automate compliance work for founders. The system is designed to automate the ongoing lifecycle of employment compliance. It handles federal and state payroll taxes, generates W-2 and 1099 forms at year-end, and manages responses to unemployment claims. Mercury's team also monitors local obligations, such as specific income taxes in parts of Colorado or Pennsylvania, and opens the necessary accounts on behalf of the user. Because the payroll system is native to the Mercury banking account, it utilizes real-time balance data to alert users if an upcoming pay run is at risk due to insufficient funds. A central feature of the launch is "Command," an AI-driven interface that allows users to execute payroll changes through natural language. For example, a user can type a request to adjust a salary, and the system automatically calculates proration, updates benefit withholdings, and drafts the change for approval. Mercury Payroll is currently free for eligible customers through the end of 2026. Starting in 2027, the service will move to a pricing model of $100 per month for the platform, plus $50 per month for each person paid. "We got all three co-founders set up on payroll, back pay included, in one call. Our first payroll went off without a hitch." The companies involved. Mercury is a financial technology company that provides banking services and financial software designed for startups and the broader venture ecosystem. While not a bank itself, Mercury provides its services through partnerships with FDIC-insured institutions. The company has moved aggressively to position itself as a comprehensive financial operating system, expanding its original focus on deposit accounts to include spend management, venture debt, and corporate treasury functions. The launch of Mercury Payroll follows the strategic acquisition of Central in April. Central specialized in pairing AI-driven automation with in-house expertise to remove the compliance burden from business owners. By integrating this technology, Mercury is attempting to verticalize the "money-out" process for its customers. This expansion places Mercury in direct competition with established human resources and payroll giants, leveraging its existing foothold in the business banking sector to capture the approximately 20% of corporate outflows that typically go toward payroll. The company currently has a significant presence in the fintech market, with 14 prior reports on its activities in FF News. What FF News has reported before. FF News has closely followed Mercury's expansion into the broader back-office and investment sectors. Recently, the company launched Mercury Books, an AI-powered accounting software designed to provide real-time financial tracking and automate bookkeeping tasks. This followed a major move into the investment space, where Mercury partnered with Morgan Stanley and State Street to offer exclusive mutual fund products to its customer base. These developments reflect a wider industry trend toward core banking modernization and the bundling of financial services, a shift also seen in FIS's recent efforts to drive digital transformation for both new and established financial institutions. What this means. The launch of Mercury Payroll signals a significant escalation in the "all-in-one" fintech race, moving beyond simple feature parity to deep vertical integration. By embedding payroll directly into the ledger, Mercury is challenging the necessity of the "integration layer" that has long sustained third-party payroll providers. This move puts immediate pressure on standalone platforms that lack direct control over the underlying bank account and must rely on stale data or manual transfers. For the wider industry, this raises a critical question: can standalone payroll and HR providers remain competitive as banking platforms move to absorb the entire administrative and compliance workflow of a business? Featured speakers.
Mercury, a fintech company with more than 450,000 customers, has launched Mercury Payroll, which lets founders pay employees and contractors from the account they already use to manage their money. AI features in Mercury Command, the company's AI agent, handle tasks such as updating salaries, adding overtime, and issuing bonuses. Mercury files and remits federal and state payroll taxes, handles year-end W-2s and 1099s, and registers companies in new states as they hire. Customers can also offer health insurance, 401(k) plans, and other benefits. Existing customers can set up a first payroll run in under 15 minutes, the company said. Payroll is free for eligible US customers through the end of 2026. From January 1, 2027, it will cost $100 per month plus $50 per month for each person paid.
Mercury lets ChatGPT and Claude queue payments. Approve in Mercury first. Mercury MCP write tools (Oct 15) let ChatGPT and Claude queue payments. Money moves only after Mercury approve. Six ledger lines before you tap Approve. On October 15, 2026, Mercury released write actions for its Model Context Protocol (MCP) connection so ChatGPT, Claude and other supported AI tools can request payments, internal transfers and category changes on a Mercury account. (Mercury release notes) Payments and transfers still move only after a human approves them in Mercury. A confirmation in the chat is not that approval. Category and note edits apply immediately, with no Mercury approval queue. What shipped. Mercury's docs list five write tools (supported tools): * `requestSendMoney`: queues a payment to an existing recipient. Needs approval in Mercury before money is sent. * `requestTransferMoney`: queues a transfer between your own Mercury accounts. Needs approval in Mercury before money moves. * `createCategory`: creates a custom expense category immediately. No separate Mercury approval. * `editCategory`: updates a custom expense category immediately. No separate Mercury approval. * `updateTransaction`: updates or clears a transaction's note or category immediately. No separate Mercury approval. Existing read-only connections must reauthorize before these write tools work. Mercury's support article also states that AI tools cannot add new recipients: you can only request payments to recipients already in Mercury. (Connecting Mercury to AI tools) Chat confirm is not Mercury Approve. Mercury's support page is explicit: selecting Confirm Request in the AI tool does not authorize the payment. You still open Mercury, find the request under Needs approval in Tasks or Payments, and approve or decline there. Approval requests expire after approximately five minutes. If one expires, you start again from the AI tool. Mercury's docs add that your organization's approval policies still apply. If those policies would otherwise skip an approval step, the requester must still approve the request in Mercury. The AI tool cannot approve the request or move money on its own. "Request created" does not mean "payment sent." The six-line payment approval ledger. Before anyone taps Approve in Mercury, put these six lines on the request. One row per payment or transfer. * Task and recipient. What the payment is for, and which existing recipient or destination account is named. If the recipient is new, stop: add them in Mercury first, outside the AI tool. * Amount and method. The dollar amount, the payment method, and the timing Mercury shows. * Requester and AI tool. Who asked, which AI client queued it (ChatGPT, Claude, Cursor or another supported MCP client), and which Mercury user will approve. * Policy and eligibility. Whether the amount sits inside the org's approval policy, and whether the approver is an eligible approver for that request. * Outcome or purpose. The business reason in one line a CFO or RevOps lead can audit later (vendor invoice, partner payout, internal float move). * Keep, cut or expiry. Approve, decline, or let the ~5 minute window expire and restart with a corrected request. Who owns which line. * CFO or finance ops: owns lines 2, 4 and 6. Money leaves only after Mercury Approve, and the receipt has to match policy. * RevOps or GTM ops: owns lines 1, 3 and 5 when the payment is a vendor, partner or campaign cost that sits next to revenue work. * CRO or founder on Mercury: sets which AI tools may connect, which users may request, and who is an eligible approver. * Anyone connecting an AI tool: treats category and note edits as live edits. They skip the approval queue, so a wrong category can overwrite a correct one without a second look. This is the same receipt pattern whether you run payments for a manufacturer, an insurer, a regional bank, a hospital system or a software company. The bank product is Mercury; the ledger is for the humans who still have to tap Approve. What to do this week. * List every AI tool connected to Mercury in your org, and confirm each one reauthorized after the Oct 15 write tools shipped. * Confirm no workflow assumes chat Confirm equals bank approval. * Add the six ledger lines to your Mercury approval checklist for `requestSendMoney` and `requestTransferMoney`. * Decide who may create or edit categories through AI, since those changes apply now. Sources. * Mercury release notes, "Take action on your Mercury account from ChatGPT and Claude," Oct 15, 2026: mercury.com/releases * Mercury Support, "Connecting Mercury to ChatGPT, Claude, and other AI tools": support.mercury.com * Mercury docs, "Supported tools on Mercury's MCP": docs.mercury.com If you want the next bank or agent payment control checked the same way, subscribe. Frequently asked questions. * What did Mercury ship on October 15, 2026? - Write actions on Mercury MCP so ChatGPT, Claude and other supported AI tools can request payments, internal transfers and category changes. Payments and transfers still need approval in Mercury before money moves. * Does confirming in ChatGPT or Claude send the money? - No. Mercury states that selecting Confirm Request in the AI tool does not authorize the payment. You must approve the request in Mercury. * Which write tools need Mercury approval? - requestSendMoney and requestTransferMoney require approval in Mercury. createCategory, editCategory and updateTransaction apply immediately with no separate Mercury approval. * Can an AI tool add a new payment recipient? - No. Mercury says you can only request payments to recipients already added in Mercury. Add a new recipient in Mercury first. Posting to Instagram or TikTok? Copy the link, it carries the title, summary and share image. Reality Check Nous ranks 14 models by score and $ per task, then sells the router. Six order-form lines and one named owner prove a router cut cost per accepted outcome. Reality Check Holo raised €5M seed Oct 15 for AI marketing autopilot for small businesses. Run a Reversal Ledger on every campaign: output is not margin.
Mercury, a technology company serving over 300,000 customers, has launched Mercury Books, an AI-powered double-entry accounting software integrated directly into its banking platform. The software automatically categorises and reconciles banking, card, invoicing, and bill pay transactions in real time, eliminating the need for manual data entry or imports. Mercury Books connects to external platforms like Stripe, Gusto, and PayPal for comprehensive financial tracking. It includes an AI agent that allows customers to manage their books using natural language commands, such as recategorising transactions or updating accounts. The software supports both accrual and cash basis accounting. The service is available free to all Mercury business customers through the end of 2026, after which it will cost $35 per month. Customers can invite accountants at no additional cost through unlimited adviser seats.
American Express now offers high-yield Business Savings account. * American Express launched a 2.95% APY Business Savings account with no minimum balance or monthly maintenance fee. * Amex is deepening its business banking offering with card-rewards deposits and a forthcoming Gusto-powered payroll solution with AI-driven insights. * Amex is positioning itself to compete with fintechs like Mercury, Brex, and Bluevine as a more complete financial operating system for businesses. American Express is bolstering its offerings today with the launch of the high-yield American Express Business Savings account. The high-yield savings account comes with an APY of 2.95% and does not require a minimum balance or charge a monthly maintenance fee. Users will be able to make and receive transfers online or through the Amex app and can make instant transfers to and from an American Express Business Checking account with no transfer fee. Additionally, later this year, Amex's Graphite Business Cash Unlimited card members, who earn 2% rewards on each transaction, will be able to redeem those reward dollars for deposits into their Business Checking accounts. Plus Amex is adding a new Gusto-powered payroll solution later this year. The new payroll solution, which will be available to Business Checking account customers for a monthly fee early next year, will help customers enroll, manage, and run payroll within American Express Business Checking, keeping everything in a single place. Leveraging Gusto, Amex will offer AI-powered insights on payroll. These developments are part of American Express' efforts to expand its Amex Business Membership by offering business customers more value with integrated solutions. The new tools integrate with accounting software and link the Amex accounts with existing bank accounts to make it easier to move money and keep financials up to date. "Businesses are looking for more value from their banking services, including competitive returns and simple tools that help them automate processes and fit seamlessly into how they operate," said American Express Executive Vice President of Global Commercial Services Eva Reda. "With Amex Business Banking, businesses now have banking tools that make it easy and rewarding to manage their finances, all in one place." For American Express, these launches signify more than just adding another high-yield deposit product. The business banking space has become increasingly crowded, with fintechs and traditional banks racing to become the financial operating system for a company, rather than simply holding their checking account. Fintechs such as Mercury, Brex, and Bluevine have raised expectations by combining deposits with tools such as payments, cards, expense management, cash management, accounting integrations, and financial automation. Amex is using its existing strength in business cards as the starting point for a broader banking relationship. Connecting card rewards directly to Business Checking, adding savings, and embedding Gusto-powered payroll gives customers more reasons to keep both their money and their day-to-day financial activity inside the Amex ecosystem. That makes the real competitive advantage less about the 2.95% APY itself and more about integration. Business banking providers are continuing to rebundle financial and back-office functions. Players that can reduce the number of external systems a business owner has to manage stand a better chance of becoming that customer's primary financial relationship.
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Industries
Company Size
1,001-5,000
Company Stage
Series D
Total Funding
$750.9M
Headquarters
San Francisco, CA
Founded
2017
Find jobs on Simplify and start your career today
Don't see your dream role? Check out thousands of other roles on Simplify.Browse all jobs