Issue being addressed? Cut-off time is vital in furrow irrigation as it significantly affects the efficiency of irrigation. Traditionally, irrigators continue the irrigation until the water reaches the end of the field. Simulation software can also be used to optimise cut-off time. However, first method is proven inappropriate and the latter method is complex. Hence, a simple method to determine cut-off time for farmers to manage furrow irrigation efficiently was evaluated and found to give cut-off times similar to the optimum time.