Mercury is a banking platform built for startups and small businesses, offering FDIC-insured checking and savings accounts with no monthly fees or minimum balance requirements. It supports ACH transfers, domestic and international wire payments, and bill pay, along with treasury accounts that earn yield on idle balances. The platform includes corporate debit and credit cards with per-employee controls, a team spending dashboard, and AI-assisted bill pay that reads invoices and populates payment details automatically. Mercury connects natively to QuickBooks Online, Xero, and NetSuite for accounting reconciliation, and offers API access and Model Context Protocol support for custom financial workflows.
Mercury is popular among venture-backed startups, early-stage founders, and technology companies that want a digital-first banking experience with built-in financial tooling rather than a traditional bank relationship. It suits businesses that need multi-person spending management, global vendor payments in 40-plus currencies, and clear real-time visibility into cash. Mercury is less appropriate for businesses with heavy cash handling needs, those that rely on in-person banking for daily operations, or established companies requiring sophisticated treasury management, lending relationships, or the compliance structures that come with a chartered bank.
Mercury's core banking features—checking, savings, and debit cards—are free, with fees applied to specific transactions such as international wires and currency conversion. The credit product operates on a charge card model. Account verification during onboarding typically takes one to three business days. A founder, CFO, or finance lead generally owns the account, with team members granted role-based access for spending or reporting. Finance teams should plan to configure accounting integrations and chart-of-accounts mapping during setup to get automated reconciliation working from day one.