A point of sale (POS) is the location and system where a customer transaction is completed — where payment is exchanged for goods or services. In contemporary usage, “POS” almost always refers to the integrated hardware and software system that processes sales: a terminal or tablet that records what was purchased, calculates the total, processes payment (cash, card, or digital), and logs the transaction in the business’s records.
Modern POS systems extend well beyond transaction processing. They track inventory in real time, generate sales reports, calculate average check, identify peak hours, monitor employee performance, and integrate with accounting software to feed the income statement and cash flow statement. In this capacity, the POS is a data collection infrastructure — every transaction becomes a data point available for analysis, optimization, and surveillance.
POS management is a standard subject of standard operating procedures — opening the register, reconciling cash at close, processing refunds, handling discrepancies. For investors evaluating a business, the POS system represents the primary source of verifiable sales data, making it a critical component of financial accountability and the basis for the metrics that populate financial projections.
Related terms
- Average check — a metric derived from POS transaction data
- Revenue model — the POS records the transactions the revenue model predicts
- Standard operating procedures — POS management is a common SOP subject
- Income statement — POS data feeds revenue reporting