Here's why:

* Electromagnetic waves are made of oscillating electric and magnetic fields. These fields are not particles with charge, they are disturbances in the electromagnetic field itself.

* The electric field and magnetic field are perpendicular to each other and to the direction of wave propagation. This means that the charge distribution within the wave is constantly changing, but overall, it remains balanced.

It's important to note that electromagnetic waves can interact with charged particles through phenomena like the photoelectric effect. However, the waves themselves do not possess a net charge.