On a $40 haircut, processing runs $1.04 to $1.34 depending on the platform — and the 30-cent flat fee moves your effective cost five times as much as the headline percentage does. Here is the per-cut math, the crossover points, and why the cheapest terminal still does nothing about a slow Tuesday. The post Barbershop POS System Costs for Professionals in 2026 appeared first on StyleSeat Blog .