A point-of-sale system, commonly called a POS, is the combination of hardware and software that handles payment acceptance, sales recording, and often inventory tracking and reporting for a retail or food service business. Modern POS systems have expanded well beyond the function of processing a card payment. They track which items sell at what times, integrate with your accounting software, manage employee hours, run your loyalty program, and generate the financial reports you need to make staffing and purchasing decisions based on actual data rather than gut feel.
Square is the right starting point for most small retail and service businesses in year one. The hardware is affordable, the software is intuitive, setup takes hours not weeks, and the transaction fee of 2.6 percent plus ten cents for in-person payments is competitive. Square's free tier includes inventory management, basic reporting, and the ability to create a simple online store. The paid tiers add more sophisticated inventory, team management, and loyalty features as your needs grow. For businesses that also want a seamless online-to-in-person selling experience, Square handles both from the same dashboard.
Toast is purpose-built for restaurants and food service businesses and is worth the higher setup cost if you operate in that category. Toast handles table management, kitchen display systems, online ordering, tipping, modifiers, and multi-location management in ways that general-purpose POS systems do not. Lightspeed is the right choice for specialty retail businesses with complex inventory needs: multiple locations, purchase order management, detailed product variant tracking, and integrated supplier catalogs. Both have higher learning curves and upfront costs than Square but are significantly more capable for their target categories.
The integration between your POS and your other business tools determines how much manual work you do every day. A POS that automatically pushes daily sales totals to QuickBooks or Xero eliminates a manual reconciliation step. A POS that syncs inventory with your online store prevents the oversells that happen when in-store and online inventory are tracked separately. Before choosing a POS, list every tool it needs to connect with and verify that native integrations exist for each one.
Hardware costs are a meaningful part of the total investment in a POS system. A basic Square setup with a card reader and tablet runs three hundred to five hundred dollars. A full toast restaurant setup with kitchen display, customer-facing screen, and receipt printer can run three to five thousand dollars per terminal. Build the hardware cost into your evaluation alongside the software subscription and transaction fees to understand the true first-year cost of each system.
The right POS system is one that handles every transaction correctly from day one, integrates with your existing tools, and generates the operational data you need to make better decisions, without requiring more technical management than your team can realistically maintain.