The NLEX has Open and Closed Systems for toll collection purposes.
The Open System runs from Balintawak to Bocaue. A fixed rate is charged in the Open System, regardless of where the motorist exits at any point between the Balintawak and Bocaue toll plazas.
The Closed System, on the other hand, runs through the remaining 70-kilometer section of the expressway, from north of Marilao to Sta. Ines, Pampanga. Motorists pay an additional toll fee on a per kilometer basis.