Geography of the Philippines the Philippines, the Sierra Madre, stretching from Quezon province in the south to Cagayan in the north. 80 percent of the mountain range is tropical rainforest, which is diminishing from rampant illegal logging activity. The range serves as the eastern wall of Luzon Island that protects inhabitants from tropical cyclones usually coming from the Pacific Ocean. The largest plain of the nation is situated in the Central Luzon region and produces most of the national rice supply, earning itself the nickname ""Rice Bowl of the Philippines"". The plains encompass the provinces of Bulacan, Nueva Ecija, Pampanga, Tarlac and Pangasinan. South
Taxation in the Philippines Taxation in the Philippines The policy of ‘’’taxation in the Philippines’’’ is governed chiefly by the Constitution of the Philippines and three Republic Acts. Taxes imposed at the national level are collected by the Bureau of Internal Revenue (BIR), while those imposed at the local level (i.e., provincial, city, municipal, barangay) are collected by a local treasurer’s office. The taxes imposed by the national government of the Philippines include, but are not limited to: Citizens of the Philippines and resident aliens must pay taxes for all income they have derived from various sources, which include, but are not limited to: