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Mercury vs Brex

A detailed comparison to help you choose the right tool for your needs.

Mercury logo

Mercury

Accounting & Finance

Try Mercury
VS
Brex logo

Brex

Accounting & Finance

Try Brex

A
About Mercury

Mercury is a fintech company that provides banking services specifically tailored for startups, e-commerce businesses, and tech companies. It offers FDIC-insured checking and savings accounts, corporate cards, treasury management, venture debt, and tools for managing company finances — all through a clean, modern interface. What sets Mercury apart is its startup-friendly approach: there are no monthly fees for its basic account, it integrates well with popular accounting tools, and it provides features like automated bookkeeping and team permissions that traditional banks typically lack. It's become a go-to banking platform in the startup ecosystem, though it's technically not a bank itself — banking services are provided by partner banks like Choice Financial Group and Column N.A.

B
About Brex

Brex is a financial platform that offers corporate cards, expense management, bill pay, and banking services tailored for startups and scaling companies. It originally gained traction by offering corporate credit cards to startups without requiring personal guarantees, underwriting based on company cash balances and funding instead of personal credit scores. The platform consolidates spend management, reimbursements, and travel booking into a single dashboard, integrating tightly with accounting software to reduce manual reconciliation. It's particularly popular among venture-backed startups and tech companies that need modern, flexible financial infrastructure without the friction of traditional banking.

Pricing Comparison

Tool
Mercury
Brex
Price
Free
Custom pricing
Category
Accounting & Finance
Accounting & Finance
Rating
4.6 (44)
4.2 (30)
Free Plan
Yes
Yes
Integrations
8+ apps
8+ apps
Founded
2019
2017

Feature Comparison

Feature
Mercury
Brex
FDIC-insured bank accounts
Expense tracking and categorization
Automated invoicing and payments
Real-time financial reporting
Integrations with popular accounting software
Automated expense tracking
Corporate card management
Integrations with accounting software
Cash flow forecasting tools
Customizable approval workflows

Choose Mercury

Modern banking platform built for startups with FDIC-insured accounts and powerful financial tools.

Try Mercury Free

Read full review

Choose Brex

Brex offers financial services and expense management for businesses.

Try Brex Free

Read full review

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Score Comparison

Ease of Use
8.0
7.0
Features
7.0
8.0
Pricing
10.0
6.0
Support
7.0
7.0
Integrations
8.0
8.0
Overall
8.0
7.2
MercuryBrex

Our Verdict

MercuryWinner

You're a startup looking for a free banking platform with FDIC-insured accounts and modern tools.

Easier to get started
More affordable
Brex

You need a flexible financial solution for a small to medium-sized team focused on expense management.

More features

Mercury vs Brex: The Bottom Line

Both Mercury and Brex are strong accounting & finance tools, but they serve different needs. Mercury has a higher user rating (4.6 vs 4.2).

Still unsure? Check the full reviews for Mercury and Brex, explore Mercury alternatives, or use our AI search to describe exactly what you need.

Frequently Asked Questions

Is Mercury or Brex better?

It depends on your needs. Mercury (4.6★) is free to start, while Brex (4.2★) is free to start. Mercury has a higher user rating.

Can I switch from Mercury to Brex?

Yes. Most SaaS tools offer data export features. Check if Brex has a migration guide or import tool specifically for Mercury users. Many offer onboarding assistance for switchers.

Which is cheaper, Mercury or Brex?

Both Mercury and Brex start at $0/mo.

What are the main differences between Mercury and Brex?

Mercury focuses on fdic-insured bank accounts and expense tracking and categorization, while Brex emphasizes automated expense tracking and corporate card management. Both are in the Accounting & Finance category but serve slightly different use cases.