Mercury vs Brex

Mercury

Developer-friendly business banking platform designed for startups and tech companies, with free wires and API access.

Pricing

$299/mo

Key Features

• ✓Business checking and savings accounts with FDIC pass-through coverage
• ✓Free domestic and international wires on the base tier
• ✓Developer API with SDK support for automated banking workflows
• ✓Mercury Pro tier with NetSuite integration and dedicated relationship manager
• ✓Fund-sweep and treasury yield features for balances above $250,000
• ✓Corporate cards with configurable spending limits per employee

Pros

• +Developer-friendly API with SDKs makes it the best choice for tech-forward startups that want to automate banking workflows
• +Free domestic and international wires save significant costs compared to traditional banks that charge $15–$50 per wire
• +Fast and straightforward approval process for LLCs and Delaware C-corps — accounts open in days, not weeks
• +Strong safety infrastructure with fund-sweep controls that distribute balances across partner banks for FDIC pass-through coverage
• +Clean, intuitive interface designed by and for startup founders — no outdated banking UX

Cons

• −No cash deposit support — Mercury is not suitable for businesses that handle physical cash
• −Does not serve sole proprietorships or unregistered businesses; you need a formal business entity (LLC, Corp) to open an account
• −Certain high-risk industries (crypto, cannabis, adult entertainment) are explicitly excluded during onboarding
• −Idle cash below the $250,000 threshold does not earn yield — balances need to be substantial to benefit from treasury features
• −No payroll integration — you'll need a separate payroll provider like Gusto or Rippling

Platforms

Web, iOS, Android

Brex

AI-powered corporate card and spend management platform for venture-backed startups, with global multi-currency card issuance.

Pricing

$0/mo

Key Features

• ✓Global multi-currency corporate cards with virtual and physical issuance
• ✓AI-powered expense categorization and compliance rule engine
• ✓Custom expense policies with automated review (Premium tier)
• ✓Travel booking and expense management in one platform
• ✓Real-time spend tracking with Slack integration and push notifications
• ✓Accounting automation — transactions sync to QuickBooks, Xero, NetSuite

Pros

• +Global multi-currency card issuance makes it ideal for startups with international contractors, remote teams, or overseas spending
• +AI-driven expense automation reduces manual reconciliation — transactions are categorized, flagged, and synced to accounting software
• +High credit limits tied to cash balance rather than personal credit history, which is crucial for early-stage startups with limited credit profiles
• +Extensive startup perks and credits (AWS, Google Cloud, HubSpot, and others) provide meaningful savings for funded companies
• +Real-time spend controls with per-employee limits, merchant category blocks, and instant notification via Slack

Cons

• −Per-user pricing ($12/user/month on Premium) scales up quickly as your team grows, making it expensive for larger teams
• −Dropped bootstrapped small-business customers in 2022 to focus exclusively on VC-backed startups — not accessible to most small businesses
• −Lacks core banking features like savings accounts, checking account functionality is limited compared to Mercury or Novo
• −Capital One acquisition (April 2026) introduces uncertainty around long-term platform independence, product roadmap, and terms of service
• −Over-reliance on AI categorization means occasional miscategorizations require manual correction

Platforms

Web, iOS, Android

Your startup has venture funding and you need both a primary bank account with free wires and a corporate card program with expense controls, Slack integration, and accounting sync.

Your business is registered (LLC or C-corp) but not VC-funded. You need free checking, free wires, API access, and a corporate card — without per-user fees or a minimum balance requirement.

You're evaluating Brex but the Capital One acquisition (April 2026) raises questions about platform independence, product roadmap continuity, and potential changes to terms or pricing.