Brex vs American Express: Which financial platform is better for your business?
Choosing between Brex and American Express for your corporate card program comes down to how your business prefers to manage money. But the reality is that neither fully meets the needs of modern companies on their own. Traditional issuers like Amex often lack the time-saving, cost-efficient tools found in newer platforms, while fintech options like Brex can fall short on rewards or be less accessible to a wider range of businesses.
In this guide, we break down the core features of both Brex and American Express cards, comparing their corporate cards, rewards structures, expense management tools, and more. We'll also highlight where each falls short and introduce competitors that may better match your operational needs. Ultimately, we'll show you how Slash brings together the best of both options: the modern automation and real-time controls of a fintech platform alongside the rewards-earning power and accessibility of premium charge cards like Amex.¹
The standard in finance
Slash goes above with better controls, better rewards, and better support for your business.
What is Brex?
Brex is a financial technology company established in 2017 by Henrique Dubugras and Pedro Franceschi. It carved out its niche by focusing on automation and digital expense management for startups and tech companies. Brex has since expanded to serve mid-market and enterprise firms with its financial management platform, and Capital One completed its acquisition of Brex in April 2026. Core features include:
- Brex Card: A corporate charge card with no personal guarantee that requires the card balance to be paid on a frequent (often daily or monthly) schedule. Brex advertises credit limits up to 20x higher than traditional business credit cards, based on cash reserves rather than a personal credit score. The card offers category-based rewards with multipliers, including 7x on rideshare (like Uber and Lyft) and 4x on travel booked through Brex's platform.
- Brex Rewards: Brex's rewards program is designed for tech and venture-backed companies, with point multipliers for software subscriptions or rideshare services. The redemption structure can be more complex than a flat-rate cashback structure, and bonus categories may not align with your business's typical spending, especially for small and medium sized businesses (SMBs).
- Integrations: Brex connects with accounting tools, ERP, and payroll systems to help automate transaction tracking and reconciliation.
- Expense management: Brex offers automation features for transaction categorization and spend policy enforcement to reduce manual back-office work.
What is American Express?
American Express (Amex) is one of the most established brands in U.S. banking and corporate finance. Founded over 175 years ago, Amex has evolved from a traditional financial institution into a global leader in consumer and business credit products. Some notable Amex features include:
- Business Charge Cards: Amex is the pioneer of the modern business charge card, where balances must be paid in full at the end of each billing cycle. With Amex's Pay Over Time feature, charge cards like the Business Gold and Platinum can function similarly to a credit card, letting businesses carry a card balance on eligible purchases (with interest at the Pay Over Time APR) when needed. The Business Gold, for instance, earns 4x Membership Rewards on the top two eligible categories where your business spends the most each month.
- Corporate Credit Cards: For businesses that prefer to carry a balance or need traditional credit, Amex also offers corporate credit cards with standard approval requirements, set spending limits, and straightforward reward programs.
- Amex Travel: Through Amex Travel, some cardholders may receive preferred hotel rates, flight upgrades, travel insurance, and unique partnerships with select hotels, airlines, and services like Uber. However, these benefits are usually reserved for premium, high-fee American Express cards like the Business Platinum.
- Amex Rewards: Amex's Membership Rewards points can be redeemed for rewards from partner brands or for booking through Amex Travel. Like Brex, rewards offerings may not align with your business's typical spend categories or day-to-day needs; for companies with irregular spending patterns, a flat-rate rewards card may provide more value.
Brex vs American Express vs Slash: Comparison
Brex and American Express both offer strong corporate cards, but they serve different types of companies and workflows. Brex emphasizes automation and tech-focused spend tools, while Amex provides a broader selection of cards with well-established rewards and benefits.
Comparing the providers side by side reveals where each platform excels and where businesses may encounter limitations:
Corporate cards
Both the Brex Card and Slash Visa Platinum Card are charge cards that integrate directly with their respective financial management platforms and offer rewards programs, though their structures serve different priorities: Brex focuses on category multipliers for tech and travel spending, while Slash offers straightforward cashback of up to 2% on all purchases.
American Express offers a wider range of credit solutions, including credit cards and charge cards, from entry-level options like the Blue Business Cash to premium products like the Business Platinum, with most cards requiring good to excellent credit to qualify. These cards vary significantly in rewards, fees, and features, with premium Amex cards carrying higher annual fees in exchange for elevated travel perks and Membership Rewards bonuses.
Expense management tools
Amex provides standard card management tools through its mobile and web apps, allowing businesses to track recent transactions, review statements, check their credit score, and redeem rewards. While reliable, the experience mirrors traditional banking systems with limited automation.
Both Brex and Slash take a more modern approach by routing card activity into a centralized platform, giving businesses real-time visibility into spending trends, team activity, and cash flow. With Slash, employees can submit receipts via text and have them automatically matched with transactions; every team member has access to the action center, where they can easily complete pending actions; and for out of pocket spend, Slash lets you handle reimbursements from expense report to repayment, end to end.
Integrations
Slash integrates with accounting tools like QuickBooks, Xero, NetSuite, and Sage Intacct. Brex offers native integrations across finance and accounting systems for syncing card activity with back-office workflows, though its platform may be better suited for larger organizations with complex tech stacks.
Amex provides basic accounting platform compatibility, as it only connects with QuickBooks; cardholders typically need to rely on third-party tools like Expensify or Concur to achieve the same level of automated financial insight that Slash and Brex deliver natively.
Rewards and travel programs
Amex is an industry leader in travel rewards, with long-standing partnerships with Delta Airlines, a strong Membership Rewards ecosystem, and premium benefits on cards like the Business Platinum.
Brex offers point multipliers in select categories like rideshare and travel, though its program is more limited than Amex's. Without heavily optimized spending against their rewards categories, it can be difficult to match the value of a flat-rate cashback rewards card.
Slash cards earn up to 2% cashback on eligible spending, so businesses can get reliable additions to their bottom line without navigating complex category restrictions or point redemption tables.
Accessibility
Brex primarily targets high-growth, venture-backed companies with strong cash balances, which may make it less accessible for smaller businesses or those without significant financial backing. Generally, applicants need at least $50,000 in a linked business bank account to qualify, with a preference for venture-backed companies.
Amex offers cards across a broader range of business profiles, though most of their card offers require good to excellent personal credit to qualify.
Slash is accessible to companies of all sizes; its application doesn't require a hard credit check or an SSN, and it uses your company's financial metrics to determine eligibility. For international businesses, you can access the Slash Global USD Account without needing a US-registered business entity, providing global card access in over 130 countries.
Top alternatives to Brex and American Express
Although Brex and American Express each offer strong business card programs and financial tools, they aren't always the best fit for every company. Brex's enterprise-oriented requirements and complex rewards structure can be limiting for smaller firms, while Amex's more traditional approach and limited automation tools may add extra operational work.
Here are some other providers to consider:
Slash
Slash delivers the best of both: smart automations for managing expenses and cash flow, along with a high-value rewards charge card. Designed for companies at any stage, Slash adds crypto-capable payments, flexible qualification criteria for SMBs, and dynamic tools that scale with your business.
Key features:
- Earn up to 2%cashback with the Slash Visa Platinum Card; assign granular spend controls, customizable limits, and track employee spending in real-time.
- Virtual business accounts with up to $150M in FDIC insurance provided by Column N.A.'s insured cash sweep network.
- Inbound and outbound USDC and USDT stablecoin payments supported across 8 major blockchains.⁴
- Two-way accounting integrations with QuickBooks, Xero, NetSuite, Sage Intacct, and DualEntry.
- No monthly fees on the base plan; Slash Pro is a flat $25 per month, with no per-seat charges.
Ramp
Ramp takes an automation-first approach to spend management, using its corporate charge card as the foundation for tighter controls and smarter financial workflows. It's built for teams that value efficiency and want software that actively reduces unnecessary spend.
Key features:
- Cash back on the Ramp corporate card at a variable rate between 0% and 1.5%, determined per customer.
- AI-assisted invoice tools and automated receipt matching.
- Customizable spend limits, approval routing, and policy enforcement.
- Accounting platform integrations for transaction sync.
Downsides: Ramp's cashback rate isn't disclosed upfront and can be lower than the flat 1.5% it launched with.
Chase
Chase offers a broad suite of business credit cards backed by the reliability of a major banking institution. Designed for companies that want traditional credit, flexible rewards, and access to branch-based banking, Chase provides a familiar structure with dependable features.
Key features:
- Chase Ink Business Unlimited earns 1.5% cash back on every purchase; Ink Business Cash offers category bonuses (5x on office supplies and telecom, up to $25,000 per year); Ink Business Preferred targets travel and business spend.
- The Ink Business Unlimited and Ink Business Cash both offer an introductory 0% APR on purchases for 12 months from account opening.
- Ultimate Rewards points redeemable for travel or cash.
- QuickBooks Online integration; NetSuite and other ERP systems require additional setup.
Downsides: Card management and business financial tools may lag behind fintech competitors; limited real-time spend controls.
Expensify
Expensify is a platform built around receipt capture, reimbursements, and expense management. The Expensify Card is a supplemental spending tool for teams already using the platform.
Key features:
- Mobile receipt scanning and automated expense categorization.
- Reimbursement tools with approval routing.
- Integrations with QuickBooks, NetSuite, and other accounting apps.
- Up to 2% cash back on U.S. purchases (1% base rate, 2% at $250,000+ monthly spend across cards).
- Policy controls for compliance and audit preparation.
Downsides: Limited native banking. The card is designed primarily to feed transaction data into the Expensify reporting workflow rather than to serve as a standalone corporate card.
WEX
Wex targets industries where vehicle activity and fuel spend drive daily operations. Its tools help fleets track usage, control costs, and manage vehicle-related payments.
Key features:
- Fuel cards and unified fuel + EV charging card with driver- and vehicle-level controls.
- Reporting on fuel usage, route efficiency, and driver activity.
- Tools for maintenance, tolls, and other fleet-related spend.
- Discounts at stations in the WEX network, typically 3 to 15 cents per gallon.
Downsides: Purpose-built for fleets, not general corporate spend. Rewards are structured around fuel savings rather than broad-based cashback.
Make the right financial move with Slash
The right business financial platform usually comes down to three questions: how much automation do you need in day-to-day expense management, how do rewards actually match your spend, and what's the qualification path? Amex leans toward businesses with strong credit and heavy business travel. Brex leans toward venture-backed and tech-forward companies where its category multipliers align. Companies outside those profiles often need a third option.
Slash brings together valuable card rewards, modern financial tools, and broad business accessibility; where your business may need to make a tradeoff with Brex or Amex, or if it can even qualify, Slash is accessible to businesses of all sizes that want unified cards, banking, treasury, and more.
Here's what you get with Slash:
- AI-powered finance: Twin, Slash's built-in AI financial assistant, helps you draft payments, pull transaction details, categorize spend, and answer questions across your accounts.
- Diverse payment rails: Send and receive ACH, RTP, FedNow, and SWIFT wire transfers to 180+ countries.
- High-yield treasury: Earn on idle cash through MULSX (Morgan Stanley) and TSTXX (BlackRock) government money market funds, with SIPC protection up to $500K.⁶
- Working capital financing: Access to a flexible line of credit with 30/60/90-day terms to smooth out cash flow when you need it.⁵
- Multi-entity support: Manage multiple business entities from a single dashboard, with role-based access for team members across each entity.
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Frequently asked questions
Who is American Express’s biggest competitor?
American Express competes most directly with large issuers like Chase and Capital One for business credit cards and travel-focused rewards. Fintech platforms like Brex, Ramp, Rho, and Slash are also strong competitors, especially for companies that value modern automation, real-time spend visibility, and streamlined expense management.
American Express vs. Capital One vs Slash: A Card Comparison
Is it hard to get a Brex credit card?
Brex generally expects applicants to have a minimum revenue of $1M or venture funding in order to qualify. That structure works well for venture-backed startups but can be a barrier for smaller businesses without similar revenue or funding history.
Top Brex Alternatives to Streamline Your Finance and Expense Management
Does Brex or Amex have better rewards?
Both Amex and Brex offer point-based rewards systems that cater to specific business types: Amex focuses on travel spending with premium benefits and airline partnerships, while Brex targets VC-backed startups and tech companies with elevated multipliers on software and rideshare purchases. With up to 2% cashback on purchases, Slash gives businesses dependable rewards that don’t fluctuate based on changing categories or spending trends.
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