POS System

A point of sale system, or POS system, is the hardware and software combination a business uses to accept payments, process transactions, and record sales at the moment a customer makes a purchase. Modern POS systems do far more than accept credit cards: they track inventory in real time, generate sales analytics, manage employee schedules, run loyalty programs, and integrate with accounting software. Square, Toast, Clover, Lightspeed, and Shopify POS are among the most widely deployed systems for small and mid-sized businesses in 2025.

Think of a POS system as a cash register that graduated from business school: it handles the transaction and generates the data your business needs to run more efficiently.

The Main Components

A complete POS system consists of both hardware and software that work together at the point of customer interaction.

• Hardware: A tablet or touchscreen terminal, a credit card reader that accepts chip, tap, and magnetic stripe payments, a receipt printer, a cash drawer, and in retail settings a barcode scanner
• Payment processing: The software that routes card transactions through payment networks to card-issuing banks, authorizes or declines them, and settles funds to your bank account, typically within one to two business days
• Inventory management: Real-time tracking of stock levels as items sell, with automatic alerts when inventory falls below reorder thresholds and the ability to run reports on best-selling and slow-moving items
• Sales reporting: Dashboards and reports that show revenue by day, week, product category, employee, and location, enabling data-driven decisions about staffing, pricing, and purchasing
• Customer management: Records of purchase history by customer, loyalty point balances, and email or SMS marketing integration for repeat business campaigns

Cloud-Based vs. Legacy POS Systems

Legacy POS systems store data locally on a server at the business location. Cloud-based systems store data remotely and allow you to access reports and manage the system from any internet-connected device. Cloud POS systems receive automatic software updates, require no server maintenance, and allow multi-location businesses to see consolidated data from all stores in a single dashboard.

The shift to cloud-based POS has accelerated significantly since 2015. Most new POS deployments today are cloud-based. The main advantage for the business owner is that you do not need IT staff to maintain the system, and you never lose access to your sales data if the terminal is stolen or damaged.

POS Systems in Specific Industries

Different industries have built specialized POS requirements into their systems.

Restaurant POS systems like Toast and Lightspeed Restaurant include table mapping, course management, split check functionality, kitchen display integration, and tip processing. Retail POS systems focus on inventory management across multiple product variants, purchase order creation with suppliers, and returns processing. Appointment-based businesses like salons use POS systems with integrated booking, stylist commission tracking, and service time logging. These sector-specific requirements have driven significant specialization in the POS market.

Processing Fees and Total Cost

POS system costs include both the hardware purchase and ongoing software subscription fees. Hardware costs typically range from $300 to $1,500 for a basic setup. Software fees range from $0 for basic Square plans to $300 per month or more for enterprise restaurant systems. Payment processing fees are typically 2.5% to 3.5% of each transaction value plus a per-transaction fee, though volume discounts are available for high-revenue businesses.

Sources

• https://www.federalreserve.gov/paymentsystems/frb-payments-study.htm
• https://squareup.com/us/en/townsquare/small-business-resources