JIT, Just-in-Time is an inventory control system that controls material flow into assembly and manufacturing plants by coordinating demand and supply to the point where desired materials arrive just in time for use. An inventory reduction strategy that feeds production lines with products delivered just in time. Developed by the auto industry, it refers to Shipping goods in smaller, more frequent lots Disclaimer Our content is not in any way legal advice or binding. The information provided by might not be the official legal or full definition. Also when pursuing a specific transaction you are encouraged to conduct your own due diligence and to consult legal counsel as appropriate.