IOM Taxi fares are comparable with must UK cities. Fuel, repairs and servicing all cost more here too.
The recent increases were very small, but the big one hidden in amongst it all was the premium rate shifting from 12.00am till 11.00pm.

The premium rate adds one third onto the fare tariff and ran from midnight until 6.00am. It now starts at 11 instead.

These by the way are the maximum charge rates. Drivers are permitted to charge less.

The rates are set by a government body the Road Transport Licensing Committee and not the drivers.