Taxi fares for passengers will rise by 12% from today.
The increase coincides with the formal introduction of in-car cash-less payment facilities, with all drivers now obliged to have a card payment machine.
Vincent Kearns represents the Taxi Dispatch Operator's Association.
He says drivers will continue to accept cash despite the growing use of debit cards.
"If a taxi is going to an outlying area, the mobile phone signal is pretty poor in some of these areas and if the signal is poor then the terminal cannot transact the credit card - that is one potential hazard that a driver could face.
"In that situation if the terminal doesn't connect the driver will insist on cash."
