How to Use Brex in 2026: Step-by-Step Guide
AI-powered financial platform for startups and enterprises — corporate cards, expense management, bill pay, and travel with AI spend controls.
Brex is a financial technology company founded in 2017, built on the premise that the financial tools available to startups are too slow, too manual, and too legacy. Brex offers corporate cards, expense management, and business banking designed for high-growth companies.
Core Platform
Corporate cards — Brex issues corporate cards with high limits (often 10–20x traditional corporate cards) based on your business's cash position rather than personal credit. Cards work globally with no foreign transaction fees.
AI expense management — Brex's AI automatically categorizes transactions, suggests expense codes, and flags policy violations. Receipts are matched automatically via email receipt capture or the Brex mobile app. Accounting sync with QuickBooks, NetSuite, and Xero.
Brex Travel — Integrated corporate travel booking with Brex Empower, Brex's AI spend management product. Employees book within policy; expenses flow automatically.
Business accounts — Brex offers FDIC-insured business checking accounts with high-yield savings, instant ACH, and wire capabilities. Treasury feature lets companies put idle cash to work in money market funds.
Spend policies — Set spending rules by employee, department, project, or vendor. The AI enforces these in real time, declining out-of-policy transactions rather than flagging them after the fact.
Who Uses Brex
Brex is popular with VC-backed startups (it became the default card for Y Combinator companies) and has expanded to serve mid-market and enterprise customers. Brex's AI features are more sophisticated for tech-forward finance teams.
What You'll Need
- A Brex account (free to create)
- A modern web browser or the Brex app
- Payment method for paid features
Getting Started
Create Your Account
Visit https://www.brex.com and sign up for a freemium account. You'll need an email address to register. A free tier is available — you can upgrade later for more features.
Start Your First Conversation
Once logged in, you'll see the main chat interface. Type a question or task in the input box and press Enter. Brex supports corporate-cards, expense-management, business-banking, travel-booking, spend-policies — start with a simple text prompt to get familiar.
Pro Tips
- Be specific: The more context you provide, the better the response. Instead of "write an email," try "write a professional follow-up email to a client who hasn't responded in two weeks."
- Iterate: If you don't get what you need, ask for clarification or refinement: "Make it shorter" or "Use a more formal tone."
- Use examples: Show Brex what format you want by including an example in your prompt.
- Save useful conversations: Most platforms let you name and revisit conversations — organize by project or topic.
Common Use Cases
Finance & Business
AI assistants for financial planning, business strategy, market analysis, and accounting.
Browse Finance & Business chatbots →Productivity
AI tools for task management, scheduling, summarization, and workflow optimization.
Browse Productivity chatbots →Troubleshooting
- Responses seem generic or unhelpful
- Add more context to your prompt. Specify the audience, tone, length, and format you need. Try starting over with a clearer description of your goal.
- The tool isn't responding or is slow
- AI chatbots can experience high traffic. Refresh the page and try again. Check the service's status page if issues persist.
- Output is too long or too short
- Explicitly specify the length: "in 100 words," "as a brief summary," or "in detail with examples."
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Frequently Asked Questions
- Is Brex free to use?
- Brex has a free tier. Paid plans start from $0.
- Do I need an account to use Brex?
- Yes, you need to create an account to use Brex.
- What can I use Brex for?
- AI-powered financial platform for startups and enterprises — corporate cards, expense management, bill pay, and travel with AI spend controls.
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