If you want free or low-cost corporate card platforms for tracking employee spend with basic controls like limits, merchant/category restrictions, receipt capture, and approval workflows, the best options are usually the ones that offer no monthly platform fee and make money through interchange or card usage.

Here are some of the strongest options:

1) Ramp

Best for: Spending controls + automated expense tracking
Pros:

• Free platform
• Virtual and physical cards
• Strong spend controls by employee, vendor, category, or amount
• Receipt capture and accounting integrations
• Good reporting/dashboard Cons:
• Best fit for U.S. businesses
• Requires business qualification
• More “corporate finance” oriented than very small teams

2) Brex

Best for: Startups and growing companies that want card controls
Pros:

• Free tier available
• Virtual/physical cards
• Good employee spend controls
• Automatic receipt matching and integrations
• Strong UX Cons:
• Eligibility can be stricter than some alternatives
• Some features are better suited to venture-backed or higher-growth companies

3) BILL Spend & Expense (formerly Divvy)

Best for: Budgeting and pre-set spend controls
Pros:

• Free platform
• Great budget controls and department/card limits
• Virtual cards available
• Easy receipt tracking and approvals
• Solid for smaller teams and mid-market businesses Cons:
• Less “premium” banking/treasury feel than Ramp/Brex
• Some workflows are a bit more manual

4) Mesh Payments

Best for: Spend management with card controls
Pros:

• Often offers a free plan or free card program depending on region/usage
• Virtual cards and controls
• Good visibility into team spend
• Receipt and approval workflows Cons:
• More limited availability in some markets
• Best features may depend on plan/contract

5) Airbase

Best for: Expense management + approvals + cards
Pros:

• Strong workflow and controls
• Cards plus bill pay/expense management
• Good for finance teams wanting structure Cons:
• Usually more of a paid/enterprise-leaning platform
• Less ideal if you need truly “free”

6) Expensify Card / Expensify Spend

Best for: Teams already using Expensify for expenses
Pros:

• Good expense tracking
• Receipts and reimbursements are smooth
• Card controls available Cons:
• More expense-management-first than card-first
• Free access depends on usage/model and may not be fully free for all needs

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Best overall picks by use case

Best overall free corporate card platform

Ramp
Great mix of card controls, expense tracking, and automation.

Best for budget enforcement

BILL Spend & Expense (Divvy)
Very strong if you want strict preloaded budgets and simple controls.

Best for startups

Brex
Excellent product experience if you qualify.

Best for teams that want approvals + spend visibility

Mesh Payments or Airbase

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Basic controls you should look for

When comparing platforms, make sure they support:

• Card-level spending limits
• Merchant category restrictions
• Vendor-specific cards
• One-time virtual cards
• Receipt capture
• Approval workflows
• Real-time transaction alerts
• Role-based access
• Accounting integrations (QuickBooks, Xero, NetSuite, etc.)

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Quick recommendation

If you want the simplest free setup for employee spend tracking:

1. Ramp
2. BILL Spend & Expense
3. Brex if eligible

If you want, I can also give you:

• a comparison table
• the best options for small businesses vs startups
• or a list of free corporate cards available outside the U.S.