According to the Jerusalem Post, Gaza, radio stations face closure if they don't pay protection money annual license fees of approximately $14,000 to Hamas. Here's the station owners' objectsions (which Hamas doesn't accept):
The minister rejected the radio stations' argument that they should not pay license fees and taxes "because we are part of the resistance against the Israeli occupation."
Most radio stations are owned or supported by the factions, so I guess the smaller "resistance stations" will bear the brunt.
The Post adds that NGOs are also being hit with the same license fees. Draw your own conclusions about where their donations are going.