Brex + Puzzle: Set Up Your Accounting In One Click

One click. That’s it. Startup accounting just went from headache to handled.

Setting up your startup’s accounting takes only one click now. Startups can get an end-to-end accounting system up and running in no time. 

Brex is already the go-to card and banking solution for founders, and now it’s your accounting co-pilot too. Accounting software is hard to set up, but thanks to Puzzle’s Developer API, it’s now a one-click experience. 

You can integrate Brex’s expense accounts into Puzzle’s general ledger with a single click, directly inside your Brex application. It saves you time, keeps your financial data in one place, gets you tax- and fundraise-ready, and helps you move faster and spend smarter. 

Pushing The Boundaries For Startup Founders

#1 One-Click, Right Inside Brex 

Synchronize your Brex expense accounts into Puzzle’s general ledger in seconds.

Seamless. Instant. Founder-friendly. No weeks of onboarding—just connect and go.

This one-click setup eliminates headaches, letting your financial data flow automatically between Brex and Puzzle. With everything unified in one platform, founders finally get the effortless, plug-and-play experience they’ve been waiting for.

#2 From Monthly Summaries to Real-time Financial Health

Brex already brings together banking, cards, and AP/AR into one powerful financial stack. Puzzle’s mission has always been to deliver true real-time accounting.

By pairing Brex’s comprehensive spend and payment data with Puzzle’s real-time general ledger, founders can unlock what matters most - real-time view of their financial health.

No delays. No fragmented systems. Just a single source of truth that helps founders make smarter, faster decisions with confidence, at every stage of growth.

#3 AI + Automation Gives You Time Back

When AI + Automation work together, accounting goes from manual grind to effortless.

• Automatic reconciliation —transactions match up without the spreadsheets
• AI-powered insights — spot trends in expenses instantly
• Instant financial statements — generated without hours of manual work
• Built-in compliance checks — every expense reviewed automatically
• Proactive error detection — issues flagged before they hit your books

What used to take hours of manual review now happens in real time. Export with confidence—compliance checked, errors flagged, and policies applied automatically.

‍"Once you experience real-time AI accounting, it’s hard to go back to monthly summaries. .” - Trevor Lee, CEO & Founder of Genius Sheets

Get Started

Connecting Brex + Puzzle takes just one click. 

1. Sign up for a Brex account.
2. Set up your banking and credit card.
3. Choose your accounting software to connect, or set Puzzle up in one click on the same page. 
4. Start scaling!

A Partnership That Makes Sense

Built for founders, from setup to scale.

Best part? You can start now—for free. Whether you’re an early-stage startup, a scale-up, or a fast-growing business, you’ll get the automated accounting foundation you need—supporting everything from simple transaction categorization to full, investor-ready financial statements.

From your first tax filing to your next fundraising round, your books stay accurate, up to date, and always ready to share with an on-demand accountant network whenever you need.

Feel the value immediately

Set up your accounting in one click today and join the founders who’ve made the smart choice to automate their finances from day one.

👉 Get started