Mercury
Accounting Verified May 2026
Mercury is the business bank startups actually want — FDIC-insured, $0 monthly fees, and a Treasury account that earns yield on idle cash.
- Free banking with no minimum balance requirements — no monthly fees or transaction fees on basic operations
- Clean modern UI purpose-built for tech companies — account opening in under an hour for most applicants
- Treasury by Mercury earns yield on idle cash balances in government money market funds
- API access (Plus and above) enables automating banking workflows from your own product
How Mercury scored 68/100
6 weighted criteria, each scored out of 10 and published with its reasoning. Featured placements never move a score.
Deal Strength
3.0 /10There is no exclusive coupon or founder discount here — the value is the product itself. The core Mercury plan is genuinely free at $0/month with no minimum balance or maintenance fees, so most startups get full checking, savings, cards, and bill pay without ever paying a cent.
Value for Money
9.0 /10Mercury delivers outstanding value: fee-free business checking and savings, free domestic ACH and USD wires, and a competitive yield on idle cash through Mercury Treasury for larger balances. Against traditional business banks that charge monthly maintenance fees and minimums, it is one of the most credible zero-fee replacements available.
Capability
8.0 /10Capability runs deep for a banking product. Mercury combines checking and savings, virtual and physical debit cards, international wires in dozens of currencies, treasury cash management, invoicing, and bill pay, plus native integrations with QuickBooks, Xero, NetSuite, Stripe, and Plaid — effectively a financial operating system for startups and growing SMBs.
Time to Value
8.0 /10Setup is fast: eligible US-registered businesses can apply entirely online, typically in around ten minutes, with no branch visit. The software-native, API-first design means a new account is usable almost immediately, and founders can be moving money and issuing cards the same day approval clears.
Trust & Reliability
7.0 /10Mercury is a well-established fintech backing its accounts with FDIC insurance through partner banks Choice Financial Group and Column N.A., and its sweep network spreads deposits across up to 20 institutions for up to $5M of coverage. It is not itself a chartered bank, and it publishes no formal uptime SLA, which keeps this short of a top score.
Flexibility & Exit
8.0 /10Flexibility is strong. The free plan carries no contract, no minimum balance, and no lock-in, so accounts can be closed on the customer's timetable. Deep accounting integrations with QuickBooks, Xero, and NetSuite make transaction data easy to export, and paid Plus or Pro tiers can be downgraded rather than trapping you.
About Mercury
Quick answer
Mercury is a financial technology company, not a chartered bank, that provides FDIC-insured business banking to startups, agencies, e-commerce brands, and SMBs. The standard plan has no monthly fees, no minimum balance, free domestic ACH and wires, and a Treasury account that earns yield on idle operating cash. It integrates natively with QuickBooks, Xero, Stripe, and Plaid, which is why it shows up in so many "best business bank for startups" and accounting-tech stacks roundups.
What is Mercury?
Mercury is a San Francisco-based financial technology company founded in 2017 by Immad Akhund (co-founder of HeyZap) and Jason Zhang. The product is a digital business banking platform aimed squarely at startups, venture-backed companies, agencies, and other SMBs that need a faster, software-native alternative to a traditional small-business checking account.
Mercury is not itself a bank. Banking services are provided through FDIC-insured partner institutions, and customer deposits can be swept across multiple banks to extend FDIC coverage. Mercury has historically partnered with banks such as Choice Financial Group and Evolve Bank & Trust, and it has evolved its banking-as-a-service relationships over time — always check the latest disclosures on mercury's site for the current partner bank(s).
Beyond the checking account, Mercury has expanded into a broader financial operating system: Mercury Treasury for yield, Mercury Capital for venture debt, Mercury Personal for high-net-worth individuals, and a developer API that powers embedded finance workflows.
Key features of Mercury
FDIC-insured business checking
Standard checking has no monthly fees, no minimum balance, and free domestic ACH and wires. Deposits are held at FDIC-insured partner banks, and eligible balances can be swept across banks for extended coverage.
Mercury Treasury
A yield-bearing account for operating cash you don't need day-to-day. APY is variable and tracks short-term rates, so it functions like a money-market sweep without forcing you to manually ladder CD maturities.
Multi-currency & international wires
Hold and move money in USD and a number of major international currencies, send international wires, and accept payments from abroad — useful for remote teams and global SaaS companies.
Virtual & physical cards
Issue single-use or recurring virtual cards per vendor, set granular spend limits, and reconcile transactions automatically. Physical debit cards are available as well.
Developer API
Mercury's API is one of the most-respected in the fintech-banking space. You can programmatically open accounts, initiate payments, issue cards, and read transaction data — ideal for fintech builders and ops-heavy teams.
Accounting & finance integrations
Native connections to QuickBooks Online, Xero, Stripe, Plaid, Ramp, and Mercury Capital. Transaction sync and categorization flow directly into your books, which is exactly why Mercury keeps appearing in accounting stack reviews.
Mercury pricing: what does it actually cost?
Mercury's headline pricing is straightforward: the standard business banking plan is $0/month with no minimum balance requirement. Most of the day-to-day rails you'll use are free, including domestic ACH transfers, domestic wires, and basic card issuance. International wires and some premium services (like Mercury Capital and Mercury Personal) are priced separately.
Unlike many neobanks that monetize through interchange or premium tiers, Mercury earns a meaningful share of revenue from Treasury and from Mercury Capital, which is how it can keep the core account free. Always verify current pricing on mercury's pricing page before you sign up — fee schedules for wires, currency conversion, and add-on services do change.
Mercury vs alternatives
Mercury isn't the only business bank for startups. Here's how it stacks up against three commonly compared alternatives in the same category. Note that I'm using publicly known positioning, not current promotional offers — always confirm the latest terms on each provider's site.
| Feature | Mercury | Relay Financial | Brex | Novo |
|---|---|---|---|---|
| Monthly fee (standard) | $0 | $0 | $0 (free tier available; paid plans for premium features) | $0 |
| FDIC-insured deposits | Yes (via partner banks; eligible sweep extends coverage) | Yes (via partner banks) | Yes (via partner banks) | Yes (via partner banks) |
| Yield on idle cash | Yes — Mercury Treasury | Yes — Relay Save (variable APY) | Yes — Brex Treasury / cash management | Limited; Novo focuses on integrations |
| Sub-accounts / envelopes | Multiple accounts per business | Up to 20 free sub-accounts (depending on plan) | Multiple accounts | Single account; uses integrations for sub-accounting |
| Credit / card spend | Debit cards; venture debt via Mercury Capital | No native credit card; partner options | Brex corporate card is a core product | No native credit card; partner integrations |
| Accounting integrations | QuickBooks, Xero, Stripe, Plaid, Ramp | QuickBooks, Xero, Plaid, Gusto | QuickBooks, Xero, NetSuite, Sage Intacct | QuickBooks, Xero, Wave, Stripe, Shopify |
| Developer API | Strong, well-documented | API available; less developer-focused | Strong, enterprise-oriented | Limited; partner-driven |
| Best fit | VC-backed startups, SaaS, e-commerce | Small businesses that want sub-accounts | Startups that want a corporate card + banking | SMBs & solopreneurs that want simple banking |
Who Mercury is (and isn't) for
✓ Use Mercury if you:
- Run a startup, agency, SaaS, or e-commerce brand that does most banking online.
- Want a free business checking account with no monthly fees or minimum balance.
- Need a Treasury-style yield account to earn on idle operating cash.
- Already use QuickBooks, Xero, Stripe, or Ramp and want cleaner reconciliation.
- Have an engineering or finance-ops team that wants a real banking API and granular card controls.
✗ Skip Mercury if you:
- Need in-person branch banking or cash deposits — Mercury is fully digital.
- Want a full corporate-card spend program with rewards and expense management (Brex is the closer fit).
- Operate in a heavily regulated industry where a chartered bank relationship is required.
- Need complex international treasury beyond Mercury's current multi-currency offering.
- Run a brick-and-mortar business that still relies on check deposits at a local branch.
How to open a Mercury business account
What's included
- Business banking built for startups with FDIC insurance up to $5M via deposit sweep networks
- No minimum balance, no monthly fees, and no transaction limits on the base account
- Mercury Venture Debt and Treasury for cash management beyond checking and savings
- Virtual and physical debit cards with per-card spend limits and instant freeze
- Bill pay and check sending from the dashboard — no branch visit required
- Team access with role-based permissions for founders, finance, and accounting staff
- API access for automating payments, reconciliation, and financial data pipelines
- Perks program: AWS, Stripe, Gusto, and 30+ partner credits for Mercury account holders
- SaaSTweaks-verified affiliate deal
- Vendor-direct activation flow with editorial pros + cons review
Mercury pricing
Verified May 2026. Vendor's published rates at the time we checked — always confirm at checkout.
| Plan | Price | Term | What you get |
|---|---|---|---|
| Mercury | $0/mo | forever | Business checking and savings accounts; debit card; no minimum balance; FDIC insured |
| Mercury Plus | $29.90/mo | monthly | Invoicing, ACH debit invoices ($1/transaction), recurring invoices, API access, priority support |
| Mercury Pro | $299/mo | monthly | Dedicated relationship manager, free ACH invoicing, unlimited API invoices, up to 250 active users |
Getting started
4 steps. The last one is the part most people skip.
- 1
Open Mercury through the link on this page
It carries our referral tag. The price you pay is identical either way, and it never changes the score on this page.
- 2
Compare the tiers against what you actually use
The pricing table on this page lists what each plan includes. Match it to real usage rather than the tier the vendor highlights.
- 3
Start on the smallest plan that fits
Most vendors let you move up mid-cycle and bill the difference, so starting low costs you nothing but starting high does.
- 4
Check the renewal terms before you commit
Note the renewal date and the rate it reverts to, so the second invoice is not a surprise. Annual plans are usually cheaper per month but harder to exit.
Where Mercury wins and loses
What works
- Free banking with no minimum balance requirements — no monthly fees or transaction fees on basic operations
- Clean modern UI purpose-built for tech companies — account opening in under an hour for most applicants
- Treasury by Mercury earns yield on idle cash balances in government money market funds
- API access (Plus and above) enables automating banking workflows from your own product
What doesn't
- Primarily a banking platform — not a replacement for a full accounting or spend management system
- International wire fees can be higher than specialist FX providers
- Not suitable for businesses requiring in-person branch banking
- Pro plan at $299/mo is only cost-effective for teams that heavily use the relationship manager and API features
The bottom line
Mercury is the business banking platform most US startups actually want: $0 monthly fees, no minimums, free USD wires, and up to $5M in FDIC insurance swept across partner banks. It is a fintech rather than a chartered bank, but for founders who want banking that behaves like software, it is a clear Buy.
Mercury's core plan is free at $0/month with no minimum balance or maintenance fees. Two paid tiers add advanced tooling: Mercury Plus at $29.90/month (or $23.95 billed annually) and Mercury Pro at $299/month (or $239.90 annually), which layer in features like invoicing APIs, expanded reimbursements, and a dedicated relationship manager.
Mercury is a financial technology company, not a chartered bank. Deposits are held at FDIC-insured partner banks, Choice Financial Group and Column N.A., and its sweep network automatically spreads balances across up to 20 banks for up to $5 million in FDIC insurance — far above the standard $250,000 single-bank limit.
Mercury is for businesses formed and registered in the United States or a US territory, with US operations and an EIN. Applicants provide formation documents and government-issued ID for owners with 25%+ control. It is built for LLCs, corporations, and startups rather than unregistered sole proprietors, and it cannot serve founders based in certain restricted countries.
Mercury Treasury is an automated cash-management account that puts idle funds into US government securities and money market funds to earn yield on balances that would otherwise sit flat. It is designed for companies holding larger cash reserves, generally requiring a $250,000+ balance to access, with the actual yield tracking prevailing money-market rates.
Mercury replaces the monthly fees, minimums, and branch visits of traditional business banking with a $0 digital-first account, online approval in about ten minutes, and free domestic ACH and USD wires. It also bundles software-native tools like invoicing, treasury, and accounting integrations that legacy banks typically charge extra for or lack entirely.
Yes. The free plan has no contract, minimum balance, or early-termination penalty, so a Mercury account can be closed at any time. Transaction data syncs to QuickBooks, Xero, and NetSuite, making records easy to export before you go, and paid Plus or Pro subscriptions can simply be downgraded to the free tier.
