Hi guys,
There's seems to be a lot of talk about taxi fares recently.
I'm now in Manila so I took a picture of the coupon taxi fare signboard at Terminal 2. I think fares from Terminals 1 and 3 should be pretty much the same so in general the "prescribed fee" range for taking a coupon taxi to various areas is as follows (all numbers are PHP):

*Update Dec.30 2014: I was at T1 today and from looking at a sampling of fares on the signboard posted there, fares are the same as those shown in the picture below. Incidentally I decided to take a metered taxi to compare with the coupon fare, and since there was no traffic I ended up paying about half the coupon fare to my destination (Mandaluyong)

MAJOR HOTEL AND BUSINESS AREAS
Makati: 330-440
Manila: 440-670
Mandaluyong: 530-610
Pasay: 150-440

OTHER AREAS
Las Pinas: 330-610
Malabon:740-850
Marikina: 670-850
Muntinlupa: 440-740
Navotas: 740-850
Paranaque : 150-440
Pasig: 530-740
Pateros: 440
Quezon City: 610-940
San Juan: 610
Taguig: 330-530
Valenzuela: 850-940

For more details, check the picture below.




*Update 2016.3.9
The signboards in T1 are updated as shown below, but the pricing looks pretty much the same.