Diversifying Ruined

Fares and surcharges
Applicable to CityCab, Comfort, Yellow-Top Cab, SMRT Taxis. Different fares apply to other operators

Flagdown fare: S$2.80 (≤ 1 km)
Meter fare
S$0.20 (every 385 m thereafter or less > 1 km and ≤ 10 km)
S$0.20 (every 330 m thereafter or less > 10 km)
Waiting: S$0.20 (every 45 seconds or less)
Booking
S$3.50 (0730 - 0930 and 1700 - 2300 hours Monday - Friday)
S$2.50 (all other times including public holidays)
S$5.20 (advance)
Peak hours
35% of metered fare (0700 - 0930 and 1700 - 2000)
Late night
50% of meter fare (0000 - 0559 hours)

Public holidays
S$1.00 (1800 hours eve to 2400 hours of New Year's Day, Hari Raya Puasa, Deepavali, Christmas Day, first and second day of Chinese New Year.
Should public holiday fall on a Sunday, the surchage will be imposed till 2400 hrs on Monday)
CBD
S$3.00 (1700 - 0000 hours, Monday - Saturday, except public holidays)
Locations
S$5.00 (Singapore Changi Airport: Friday - Sunday from 1700 to 0000 hours)
S$3.00 (Singapore Changi Airport: all other times)
S$3.00 (Seletar Airport)
S$2.00 (Singapore Expo)

Higher flag-down rates for certain models.

All Electronic Road Pricing charges incurred on the trip are to be borne by the customer. An additional 10% administrative charge on the total fare is also incurred when payment is made on credit or charge cards. Higher fares apply for premium taxi services that employ premium vehicles, such as CityCab's Presido and MaxiCab, Yellow-Top Cab's Sovereign limousines, SMRT's Prestige and London Taxi and Airport Transfer service, and so on.

Observation: Singapore must win the award for the most complicated taxi fare structure in the world.

Source.