Financial Management

Brex vs. Mercury: Which Financial Solution is Right for Your Startup ?

Having the right financial tools can significantly impact your startup’s ability to manage its finances effectively, scale operations, and achieve long-term success.

Entrepreneurs and small business owners must choose a financial solution that meets their needs. This is where Brex and Mercury come in.

This Brex vs. Mercury article will compare both platforms' main features, pricing structures, and overall value propositions. This will give you a clearer understanding of the right financial solution for your startup.

What is Brex?

Alt: what is brex

Brex is a financial technology company that offers several financial services for startups, technology companies, and small to medium-sized businesses.

Established in 2017 by Henrique Dubugras and Pedro Franceschi, Brex provides businesses with a comprehensive financial operating system including corporate credit cards, expense management tools, and business accounts.


Corporate Cards with No Personal Guarantee

Brex offers corporate credit cards that do not require founders to provide personal guarantees. This allows businesses to separate their personal and business finances, thereby reducing personal risk.

Expense Management Tools

Brex provides robust expense management tools that help startups track and manage their spending efficiently.

The platform offers features like automatic receipt matching, spending categorization, and real-time tracking, making it easier to monitor and control expenses.

Integration with Accounting Software

Brex integrates seamlessly with popular accounting software like QuickBooks, Xero, and NetSuite. This integration ensures that all financial data is synchronized, reducing manual data entry and minimizing errors.

Rewards and Perks for Startups

Brex offers a unique rewards program designed specifically for startups. Users can earn points on every transaction, which can be redeemed for travel, business services, and more.

Also, Brex partners with various service providers to offer exclusive discounts and benefits, such as AWS credits, advertising credits, and SaaS discounts.


  • Brex offers corporate cards without requiring a personal guarantee, which benefits founders who want to separate personal and business finances.
  • The platform provides robust expense management tools, making it easier for startups to track and categorize expenses, manage receipts, and reconcile accounts.
  • Brex offers cashback and rewards on business purchases like software subscriptions and travel.
  • Brex integrates seamlessly with popular accounting software, streamlining financial workflows and providing real-time insights into spending.
  • The platform is known for its responsive customer support, offering assistance with onboarding, account management, and technical issues.


  • Some startups may find their pricing structure to be higher compared to traditional banking or other financial solutions, especially for certain premium features.
  • Brex is mainly targeted towards startups, tech companies, and scale-ups. Businesses in other industries or with different needs may find it less suitable.
  • Its features may be overwhelming or unnecessary for some startups, especially smaller or less complex businesses.
  • The lack of a personal guarantee requirement may lead to some founders being less cautious with spending, potentially leading to financial challenges down the line if expenses are not managed carefully.

What is Mercury?

Alt: what is mercury

Mercury is a financial technology company that offers banking solutions for startups and small businesses.

Founded in 2017 by Immad Akhund and Max Tagher, Mercury provides modern, tech-forward banking services tailored to the unique needs of entrepreneurs and early-stage companies.

Mercury has positioned itself as a modern, tech-forward alternative to traditional banks, focusing on simplicity, transparency, and ease of use.


No-Fee Banking Services

Mercury provides fee-free checking and savings accounts, with no minimum balance requirements and no monthly maintenance fees. This is beneficial for startups interested in minimizing their overhead costs.

FDIC Insurance

Through its partner banks, Mercury offers FDIC insurance on deposits up to $5 million, offering startups peace of mind regarding the safety of their funds.

API Access

Mercury offers robust API access, allowing startups to integrate their bank accounts with their internal systems and automate various financial operations. This feature is important for tech-savvy businesses that rely on custom integrations and data-driven decision-making.

Cash Management and Analytics Tools

Mercury provides tools to help startups manage their cash flow more effectively. This includes insights into spending patterns, custom transaction alerts, and detailed financial analytics to help businesses make informed decisions.

Virtual and Physical Debit Cards

The platform issues both virtual and physical debit cards, allowing startups to manage their expenses conveniently.


  • Mercury offers banking services with no monthly fees, minimum balance requirements, or transaction fees, making it an attractive option for startups aiming to minimize costs.
  • Deposits made into Mercury accounts are FDIC-insured through their partner banks, providing peace of mind and security for users.
  • Mercury provides API access, allowing startups to integrate their financial data and processes with other tools and platforms.
  • The platform helps startups to better manage their finances by offering tools and features for efficient cash management (like customizable tags, transaction categorization, and real-time analytics).
  • Mercury's platform has an intuitive design and user-friendly interface, making it easy for startups to navigate and manage their financial activities.


  • Mercury has a limited rewards program or perks compared to Brex, which may be a drawback for startups looking for additional incentives or benefits.
  • Mercury lacks some advanced financial tools or integrations available in other platforms, which could be a limitation for startups with more complex needs.
  • The platform is less well-known unlike some of its competitors in the market, which could affect trust or credibility for some users.
  • While API access provides flexibility, integrating with Mercury's API requires technical expertise or resources, which could be challenging for startups with limited technical capabilities or resources.
  • Mercury does not offer the full suite of banking services that traditional banks offer, which could be a limitation for startups interested in more comprehensive banking solutions.

Brex vs. Mercury: In-Depth Comparison for Startups

Here’s a detailed Brex vs. Mercury comparison to help you make the right choice for your startup:

#1 Financial Tools and Services

Corporate Cards


Brex offers corporate cards with no personal guarantee required, making it an attractive option for founders who want to separate their personal and business finances.

These cards come with high spending limits, built-in expense management tools, and automated receipt matching, streamlining the accounting process for startups.

Also, Brex provides virtual cards instantly upon approval and physical cards within a few business days, ensuring quick access to funds for business expenses.


Mercury provides virtual and physical debit cards, allowing startups to manage their spending directly from their Mercury account. With Mercury, startups can enjoy fee-free transactions and ATM withdrawals worldwide, along with real-time notifications for every card transaction, enhancing financial control and transparency.

Mercury's cards easily integrate with popular accounting software and expense management platforms, simplifying the reconciliation process for startups.

Expense Management


Brex's expense management platform offers real-time insights into spending patterns, customizable expense categories, and automated receipt tracking. Startups can easily monitor their expenses, set spending limits for employees, and generate detailed reports for accounting and tax purposes.

Brex integrates with leading accounting software like QuickBooks and Xero, ensuring smooth data synchronization and reducing manual data entry errors.


Mercury provides a wide range of tools for expense tracking, including the ability to attach receipts to transactions, categorize expenses, and set budget limits.

Startups can manage their expenses directly within the Mercury dashboard, eliminating the need for third-party expense management software and reducing subscription costs.

Mercury allows startups to create custom expense categories and tags, providing greater flexibility in organizing and analyzing their financial data.

Cash Management and Banking Services


Brex Cash offers a business cash management account with competitive interest rates, no minimum balance requirements, and unlimited free ACH transfers.

Startups can earn rewards on their account balances, access funds instantly through Brex's partnership with Stripe, and benefit from FDIC insurance up to $250,000.

Brex Cash seamlessly integrates with Brex's other financial products, allowing startups to manage all their finances from a single platform.


Mercury provides FDIC-insured business checking accounts with no monthly fees, no minimum balance requirements, and unlimited free transactions.

Startups can deposit checks remotely using Mercury's mobile app, initiate ACH transfers, and receive same-day settlement on incoming wires, improving cash flow management.

Mercury also offers API access for developers, enabling startups to build custom banking solutions and automate their financial workflows.

Which Financial Solution Should You Choose for Financial Tools and Services?

While Brex excels in providing corporate cards with no personal guarantee and integrated expense management solutions, Mercury stands out for its fee-free banking services and flexible cash management options.

#2 Rewards and Perks

Rewards and perks entice entrepreneurs to choose one platform over another. Here’s how Brex and Mercury stack up in this aspect:


Brex offers rewards tailored to the needs of startups, such as credits for popular services like AWS, Google Ads, and Slack. This can reduce operational costs for growing businesses.

Unlike traditional corporate cards, Brex offers rewards without requiring a personal guarantee, making it an appealing option for founders who want to separate their personal and business finances.

Also, users can redeem rewards for statement credits, travel, or transfer to airline partners, providing versatility in how rewards are utilized. Brex has also partnered with leading brands and service providers, offering exclusive perks and discounts to its users, thereby improving the overall value proposition.


Mercury provides seamless banking services without any monthly fees or minimum balance requirements. This means substantial savings over time for startups operating on tight budgets.

Although Mercury doesn’t offer a traditional rewards program, it provides cashback on specific transactions, helping startups recoup part of their spending.

Also, Mercury ensures that funds deposited in their accounts are protected by FDIC insurance through their partner banks, offering peace of mind to entrepreneurs concerned about the safety of their funds.

Furthermore, for tech-savvy startups, Mercury's API access allows for seamless integration with other financial tools and platforms. This enables customized solutions tailored to specific business needs.

Which Financial Solution Should You Choose for Rewards?

Brex excels in providing tailored rewards and exclusive partnerships, while Mercury focuses on no-fee banking and API access.

#3 Integration Capabilities


Brex offers seamless integration with software like QuickBooks, Xero, and NetSuite. This facilitates streamlined expense tracking and reporting, saving startups valuable time and resources.

In addition, Brex integrates with popular payment platforms like Stripe and, enabling smooth synchronization of financial data across different systems. The platform also provides an open API, allowing startups to develop custom integrations tailored to their needs.

However, while Brex offers robust integration options, some users may find the customization options limited compared to more extensive APIs.


Mercury takes a slightly different approach to integration, focusing on providing developers with powerful API access to build custom solutions.

The platform offers a RESTful API that allows startups to integrate Mercury's banking services directly into their existing workflows and applications. This level of flexibility allows startups to create tailored solutions that meet their unique requirements.

While Mercury doesn't offer out-of-the-box integrations with accounting software like Brex does, its API capabilities empower startups to create seamless connections with their preferred financial tools.

In addition, Mercury provides extensive documentation and developer resources to support the integration process, making it accessible even for startups with limited technical expertise.

Which Financial Solution Has Better Integration Capabilities?

Brex excels in providing pre-built integrations with popular accounting and payment platforms, making it easier for startups to connect their financial data across different systems.

On the other hand, Mercury stands out for its robust API access, allowing startups to create highly customized integrations tailored to their specific needs.

Startups that want plug-and-play integration solutions may find Brex more suitable, while those looking for extensive customization options may prefer Mercury's API-driven approach.

#4 User Experience and Support

User Experience


Brex offers a modern and intuitive user interface, making it easy for startups to navigate the platform. The onboarding process with Brex is straightforward, with little paperwork required. Startups can set up and start using their corporate cards within a few days.

Brex's mobile app allows users to manage expenses, track rewards, and monitor spending on the go, enhancing convenience and accessibility.


Mercury's platform has a clean and simple design, making it ideal for startups interested in a hassle-free banking experience. As an online-only bank, Mercury prioritizes digital interactions, offering a smooth and efficient online banking experience.

For startups with more complex financial needs, Mercury's API access enables customization and integration with other tools and systems.

Also, Mercury provides real-time insights into your startup's financial health, empowering you to make informed decisions promptly.

Customer Support


Brex offers dedicated customer support to assist startups with any questions or issues they encounter. In addition to live support, Brex provides a comprehensive knowledge base and help center, offering resources and guides for self-service assistance.


Mercury prides itself on its responsive customer support team, available via email or in-app chat to address queries and concerns. The platform facilitates peer-to-peer support and knowledge sharing through its online forums and community events.

Mercury offers educational resources and guides to help startups make the most of their banking experience, covering topics ranging from financial management to business growth strategies.

Which Financial Solution Has Better Customer Support and User Experience?

Brex and Mercury prioritize user experience and support. They offer intuitive platforms and responsive customer service to meet the needs of startups.

Your choice between the two may depend on factors like the complexity of your financial requirements and your preference for a specific interface or support model.

#5 Pricing and Costs


Alt: brex pricing plans

Brex provides three pricing tiers: Essentials, Premium, and Enterprise.

Brex mandates customers to sign up for either a Brex Premium or Brex Enterprise account to use features like custom roles and permissions, dedicated customer support, ERP integrations, travel planning, and live budgeting.

At the time of this writing, the Brex Premium plan costs $12 per user per month with annual billing or $15 per user per month with monthly billing. Larger enterprise organizations interested in additional features and dedicated onboarding should contact Brex Sales for a custom quote.


One of the key advantages of Mercury is the absence of fees. There are no monthly fees, overdraft fees, ATM fees, or wire transfer fees (though intermediary banks might charge a fee, which Mercury covers up to a flat rate of $15). An exception is for foreign transactions, which incur a 1% currency exchange fee.

Certain advanced features may have associated costs, including optional premium processing for international transactions, bulk payments through the Mercury API, and Treasury account management.

Which Platform Has Better Pricing Structure?

When comparing the pricing and costs of Brex and Mercury, consider factors like transaction volume, international operations, and the need for premium features.

While Brex may offer more comprehensive expense management tools and rewards, Mercury's no-fee banking can be attractive for cash-strapped startups in their early stages.

When Should You Use Brex vs. Mercury?


You can consider using Brex in the following situations:

  • Reward Options: Brex offers rewards on card spending through its business cards. You can redeem these rewards for various benefits including events, billboards, and mental health services.
  • Financial Modeling Tools: Brex provides access to Pry, a financial modeling tool that leverages banking and accounting software data to help users plan for future financial decisions, manage budgets, and generate accurate financial forecasts and reports.
  • Global Reimbursements: With Brex Empower, you can facilitate speedy reimbursements to their teams regardless of location. Employees can be paid in their local currency and bank account within two days or less, available in over 70 countries.


Brex can be used in the following situations:

  • Eligibility: Mercury accepts all types of businesses except sole proprietors and trusts. This accessibility contrasts with Brex's stricter eligibility criteria, which can exclude many small businesses.
  • ATM Withdrawal Support: All Mercury accounts come with debit cards that offer fee-free access to a vast network of over 55,000 Allpoint ATMs. While there are no fees for out-of-network ATMs, third-party surcharges may apply. Brex, on the other hand, does not offer ATM or debit cards, limiting access to cash withdrawals.
  • Cash Back Rewards: Mercury's business card provides 1.5% automatic cash back on all domestic and international purchases, offering a straightforward rewards system compared to Brex's point-based rewards program.

Wrapping Up

Your choice between Brex vs. Mercury for business checking depends on the growth stage of your startup.

Brex has strict eligibility requirements and is, thus, ideal for mid-level or late-stage startups that want financial tools that can provide high performance.

On the other hand, Mercury is ideal for early-stage startups that are interested in growth opportunities. It offers access to business discounts, venture debt, and investor networks, thereby making it ideal for startups that want to scale their operations.

Brex vs. Mercury FAQs

Is mercury better than Brex?

Brex serves high-growth sectors such as e-commerce and technology, while Mercury focuses on small businesses. Brex suits startups or e-commerce businesses interested in specialized financial solutions customized to their specific needs.

Is Brex a good bank account?

Brex can be a good bank account option for startups looking for comprehensive financial tools, rewards, and scalability. However, compare Brex with other banking options and consider your startup's specific requirements before you make a decision.

What is Brex credit limit?

The Brex business account sets limits based on up to 30% of the total balance across your accounts. This limit is determined by assessing your present cash balance and the average balance over the past 30 days. Any fluctuations in the cash balance within your linked account will directly impact your credit limit, increasing or decreasing it accordingly.

Get content like this, and more, sent directly to your inbox once a month.

Thank you for subscribing us!
Oops! Something went wrong while submitting the form.


Stressing the details?

Let levy handle this for you.
Learn more
No items found.