Master Brex with our step-by-step tutorial, detailed feature walkthrough, and expert tips.
Sign up for a free Brex Essentials account at brex.com using your business email and basic company information — approval takes 24
48 hours based on bank balance verification Connect your primary business bank account for balance verification and upload key business documents (articles of incorporation, EIN confirmation) required for underwriting Set up your first spending policies by defining merchant categories, spending limits per employee/department, and approval workflows that match your organizational structure Integrate with your accounting system (QuickBooks, Xero, NetSuite, or Sage) using Brex's guided setup wizard to enable automatic transaction sync and categorization Issue corporate cards to employees starting with virtual cards for immediate use, then order physical cards — begin with small test transactions to validate policy enforcement before rolling out company
💡 Quick Start: Follow these 2 steps in order to get up and running with Brex quickly.
Explore the key features that make Brex powerful for financial management workflows.
Brex's AI agents automatically categorize transactions by analyzing merchant data, receipt content, and historical spending patterns specific to your organization. The system matches receipts to transactions using OCR technology, enforces your spending policies in real-time, and flags violations before they occur. Machine learning improves accuracy over time, handling over 80% of expenses without any human review, including detecting nuanced policy violations like alcohol purchases on corporate cards. This is meaningfully higher than the ~60% automation rate of competitors like Ramp.
Brex uses balance-based underwriting, meaning your credit limit is tied to your company's bank balance rather than personal or business credit scores. The platform typically approves credit limits ranging from 10-30% of your verified bank balance, refreshed continuously as balances fluctuate. This benefits well-funded startups who would otherwise be excluded by traditional credit-based models, but means you'll need substantial cash reserves (typically $50K-100K+) to get meaningful credit limits. If balances drop significantly, credit limits may be reduced or cards suspended.
Capital One announced a $5.15 billion acquisition in January 2026, expected to close mid-2026. The core Brex platform continues operating independently during the transition, but users should expect potential changes to pricing, features, and integrations as integration progresses. Anticipated benefits include enhanced banking capabilities through Capital One's infrastructure, expanded credit products beyond balance-based underwriting, and deeper enterprise features. Companies currently evaluating Brex should factor in this transition risk when making multi-year commitments.
Both offer AI-powered expense automation, but they differ in key areas. Ramp offers 1.5% cashback rewards and is more accessible to smaller businesses through traditional credit-based underwriting. Brex offers deeper AI automation (80%+ vs ~60% processing), integrated travel booking, and now Capital One banking infrastructure, but requires higher cash balances. Choose Ramp for cashback rewards and broader accessibility for capital-light businesses; choose Brex for maximum automation, enterprise scale, and integrated T&E across 120+ countries.
Brex's free Essentials tier is technically available to any business, but the balance-based credit model means small businesses with limited cash reserves will get very low credit limits (10-30% of bank balance). Companies with under $50K in bank balances may find competitors like Ramp, BILL Spend & Expense (formerly Divvy), or traditional business credit cards more practical for meaningful spending limits. Brex is best suited for venture-backed startups with $100K+ in reserves or established businesses with strong cash positions rather than bootstrapped small businesses.
Basic Brex setup takes 24-48 hours for account approval and first virtual cards. Full implementation including accounting integration with QuickBooks, Xero, NetSuite, or Sage, policy configuration, and team rollout typically requires 1-2 weeks. Enterprise customers with complex approval workflows, multi-entity consolidation, and custom HRIS integrations may need 4-8 weeks with dedicated implementation support. Most mid-market companies are fully operational with automated expense processing within two weeks of signup.
Companies typically see 300-800% ROI in year one through eliminated manual processing costs, with the free tier delivering immediate ROI and Premium ($12/user/month) paying back within 3-4 months. Mid-market companies save $15,000-40,000 annually through 80% expense automation, faster month-end close (5 days to 1-2 days), and consolidated vendor costs. Enterprise organizations save $200,000-500,000 annually through automated AP, eliminated manual workflows, and integrated travel. Every automated hour of expense processing saves $25-50 in loaded staff costs — Brex typically automates 80-120 hours monthly for growing companies.
Now that you know how to use Brex, it's time to put this knowledge into practice.
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Tutorial updated March 2026