The gas station point of sale (POS) is the system that is used to process payments, track inventory, and manage customers properly, like a modern cash register.

There are a host of costs associated with the purchase of a point-of-sale system. This cost usually ranges from $1000 to around $30000, or even more. The cost of a POS system is usually associated with its features.

Generally, there is a low-profit margin on gas itself that can range somewhere between 14 to 20 cents per gallon. Here, it is possible that the convenience store sales offer higher margins.

There are a host of factors upon which this investment depends, such as competition, location, and market research. This is why it is important to do the homework before investing in a gas station.