Toast vs Square: Restaurant PCI

Bottom Line

For most restaurants, Square offers a simpler PCI compliance path with integrated payments that typically qualify for SAQ A or B, while Toast provides restaurant-specific features but often requires the more complex SAQ C-VT or D due to its cloud-based architecture. Your choice should depend on whether you prioritize minimal compliance burden (Square) or restaurant-specific functionality with integrated operations (Toast).

What’s Being Compared and Why It Matters

Toast and Square represent two fundamentally different approaches to restaurant payment processing, each with distinct implications for your PCI compliance journey.

Square started as a mobile payment processor and evolved into a full point-of-sale system. Its hardware-based encryption and standalone terminals often keep merchants in simpler SAQ categories. Square’s approach emphasizes ease of use and minimal technical complexity.

Toast built its platform specifically for restaurants, integrating payments with order management, kitchen display systems, and restaurant operations. This deep integration provides powerful features but typically creates a more complex compliance environment since payment data touches multiple system components.

This comparison helps you understand which platform aligns with both your operational needs and your capacity to manage PCI compliance requirements. It’s particularly relevant when you’re:

• Opening a new restaurant and selecting your first POS system
• Switching from legacy systems to modern cloud-based platforms
• Trying to reduce your PCI compliance burden while maintaining operational efficiency
• Evaluating the true cost of compliance beyond just processing fees

Comparison Table

Aspect	Square	Toast
Typical SAQ Type	A, B, or B-IP	C-VT or D
Compliance Scope	Limited to payment terminals	Entire POS environment
Approximate Requirements	20-40 requirements	80-329 requirements
Annual Compliance Cost	$50-200	$300-2,000+
Time Investment	2-4 hours annually	20-100+ hours annually
Best For	Simple operations, minimal IT resources	Complex operations, dedicated IT support

Detailed Breakdown

Square: The Compliance-Friendly Option

Square’s architecture prioritizes scope reduction through hardware-based encryption and network isolation. When you swipe, dip, or tap a card on a Square terminal, the payment data is encrypted at the point of interaction and transmitted directly to Square’s servers.

Who it’s for: Small to medium restaurants, food trucks, cafes, and quick-service restaurants that prioritize simple operations and minimal compliance overhead. Perfect for merchants without dedicated IT staff.

Strengths:

• P2PE-validated solutions that can qualify you for SAQ P2PE (just 35 requirements)
• Standalone terminals that don’t connect to your main network reduce scope
• Cloud-based reporting doesn’t store CHD in your environment
• Mobile solutions (Square Reader) often qualify for SAQ B
• Pre-configured security settings reduce configuration errors

Limitations:

• Less integration with kitchen operations and table management
• Limited customization for complex restaurant workflows
• Separate systems might be needed for inventory and staff management
• May require manual reconciliation between payment and operation systems

Toast: The Restaurant-Centric Platform

Toast integrates payments deeply into restaurant operations, creating a unified system that handles everything from table assignments to kitchen routing. This integration delivers operational efficiency but expands your CDE significantly.

Who it’s for: Full-service restaurants, multi-location operations, and establishments that need sophisticated table management, split checks, and integrated kitchen operations.

Strengths:

• Seamless integration between payments and operations
• Powerful reporting across all restaurant functions
• Built-in features for tips, splits, and modifications
• Cloud-based management for multi-location consistency
• Restaurant-specific compliance guidance and tools

Limitations:

• Your entire POS network becomes part of the CDE
• Requires network segmentation to isolate payment systems
• More complex annual assessment process
• Higher ongoing compliance costs for scanning and assessments
• Need IT expertise to properly configure and maintain

Technical Differences That Matter

The fundamental difference lies in how each system handles cardholder data flow. Square isolates payment processing from your operational systems, while Toast integrates them for efficiency.

With Square, your payments flow like this:
1. Card presented to terminal
2. Terminal encrypts and sends to Square
3. Square processes and returns authorization
4. Your POS records only transaction ID

With Toast, the flow involves more touchpoints:
1. Card presented to terminal
2. Terminal sends to Toast POS application
3. POS may route through local server or cloud
4. Multiple system components see transaction data
5. Integration with kitchen, reporting, and management systems

This architectural difference drives everything else — from which SAQ you complete to how many requirements you must satisfy.

Decision Framework

Choose Square if:

• You run a single location or small chain
• Your payment volume is under $1M annually
• You have minimal or no IT support
• You can work with separate systems for different functions
• You want to minimize compliance costs and effort
• Your operations are relatively simple

Choose Toast if:

• You operate multiple locations needing consistency
• You require sophisticated table and order management
• You have dedicated IT resources or outsourced support
• Integrated operations provide significant efficiency gains
• You’re willing to invest more in compliance for operational benefits
• Your restaurant has complex workflows requiring customization

Questions to Confirm Your Category:

For Square consideration:

• Can you operate with payments separate from other systems?
• Is your menu relatively static with simple modifications?
• Do you have fewer than 50 tables or orders per hour?
• Can staff training focus on simple, standardized processes?

For Toast consideration:

• Do you need real-time kitchen routing and timing?
• Are integrated labor and inventory controls critical?
• Do you modify orders frequently during service?
• Would separated systems create operational inefficiencies?

Common Misidentification Scenarios

Many restaurants assume all cloud-based POS systems have similar compliance requirements. This is false — the architecture matters more than the delivery model.

Some Square users mistakenly think they need SAQ C because they use Square for Restaurants. If you’re using Square’s validated P2PE terminals without storing, processing, or transmitting CHD on your own systems, you likely qualify for a simpler SAQ.

Toast users sometimes believe they qualify for SAQ A because they don’t store card data locally. However, if your network touches payment data at any point — even momentarily — you’re likely in SAQ C-VT or D territory.

What Happens If You Choose Wrong

Compliance Consequences

Selecting a platform without understanding its PCI implications can lead to significant problems:

Under-scoping (choosing Square but needing Toast’s features):

• You’ll likely add third-party integrations that expand your scope
• Manual processes reduce efficiency and increase errors
• Staff frustration with disconnected systems
• Potential non-compliance if you modify the validated implementation

Over-scoping (choosing Toast when Square would suffice):

• Spending thousands annually on unnecessary compliance activities
• Dedicating IT resources to security instead of growth
• Completing lengthy assessments for simple operations
• Implementing controls that don’t match your risk profile

How to Course-Correct

If you realize you’ve chosen the wrong platform:

1. Document your current state — which SAQ you’re completing, what requirements you’re struggling with
2. Calculate the true cost — include compliance tools, staff time, and consulting fees
3. Evaluate switching costs — consider contracts, training, and data migration
4. Plan the transition — ensure continuous compliance during the switch

Remember: it’s often better to switch platforms than to remain non-compliant or waste resources on unnecessary requirements.

When to Get a QSA’s Opinion

Consider professional assessment if:

• Your acquirer questions your SAQ selection
• You’re unsure how integrations affect your scope
• Your configuration differs from standard implementations
• You’re facing repeated ASV scan failures
• You need compensating controls for requirements you can’t meet

FAQ

Q: Can I use Square terminals with Toast POS?
A: Technically possible but not recommended. Mixing payment systems usually expands your compliance scope and eliminates the benefits of either platform’s validated implementation. You’d likely end up with SAQ D requirements while losing integrated functionality.

Q: Does Toast offer any P2PE solutions?
A: Toast has partnered with validated P2PE providers for some configurations. However, the deep integration with restaurant operations often prevents full P2PE scope reduction. Check with Toast directly about P2PE options for your specific setup.

Q: Which platform has better breach protection?
A: Both platforms maintain strong security programs and PCI compliance. Square’s isolation approach reduces your attack surface, while Toast’s integration provides comprehensive monitoring. Your security depends more on proper implementation than platform choice.

Q: How do multi-location restaurants typically choose?
A: Larger operations often choose Toast for operational consistency and central management, accepting the higher compliance burden. However, franchises sometimes prefer Square to minimize compliance complexity for individual owners. Consider your support model and technical capabilities at each location.

Q: Can I switch platforms without disrupting operations?
A: Yes, but it requires careful planning. Most restaurants run parallel systems for 1-2 weeks, gradually transitioning operations. The biggest challenges are staff training and historical data access rather than technical implementation.

Conclusion

Choosing between Toast and Square for your restaurant comes down to balancing operational needs with compliance complexity. Square offers a cleaner path to PCI compliance through isolation and validated implementations, making it ideal for restaurants that can work within its constraints. Toast provides powerful integration that many full-service restaurants need, but requires more substantial investment in compliance infrastructure and processes.

The right choice depends on your specific situation — there’s no universal answer. A food truck or casual cafe will likely find Square’s simplicity perfect for their needs, while a bustling full-service restaurant might find Toast’s integration essential despite the compliance overhead.

Whatever platform you choose, understanding the PCI implications upfront helps you budget appropriately and implement properly from day one. PCICompliance.com gives you everything you need to achieve and maintain PCI compliance — our free SAQ Wizard identifies exactly which questionnaire you need based on your actual payment setup, our ASV scanning service handles your quarterly vulnerability scans regardless of platform choice, and our compliance dashboard tracks your progress year-round. Start with the free SAQ Wizard to confirm your SAQ type or talk to our compliance team about building a sustainable compliance program for your restaurant.