The POS decision at a single location is a product decision. At 10 locations, it is a financial decision. The difference in total cost of ownership between Toast, Square, and Lightspeed at 10 full-service locations can exceed $15,000 per year — before factoring in the opportunity cost of a platform that doesn’t give you the data you need to manage food cost.
The comparison below uses a standardized 10-location full-service scenario: average $1.2M revenue per location, $12M total, table-management required, integration with a payroll system required. All pricing is as of November 2025; POS vendors change pricing frequently and the only accurate number is a formal quote to your specific configuration.
What the total-cost-of-ownership calculation actually includes
Most operators compare POS software monthly fees. That is the wrong number to anchor on. The full TCO includes: hardware (terminals, printers, card readers, KDS), monthly software fees, payment processing fees (the largest variable), third-party integration costs (payroll, inventory, reservations), and implementation and training.
Payment processing is usually 60–70% of the total. The difference between 2.4% and 2.6% on $12M in annual revenue is $24,000 per year — more than most operators spend on software. Run the processing math first. Then evaluate the software.
The integration question
The hidden cost in POS selection is integration friction. Toast has the most restaurant-specific integrations, but it protects its payment processing aggressively — operators who want to use a cheaper processor elsewhere cannot do so on Toast. Lightspeed and SpotOn are more flexible on payment processing, which shifts the math for operators with access to competitive interchange rates.
The reservation integration question is also worth mapping before signing a contract. Toast integrates natively with OpenTable and Resy; Square has limited reservation integration; Lightspeed’s reservation integrations are more dependent on the specific market configuration. For full-service operators where reservation pacing drives labor scheduling, this is not a minor feature.