Pī-soè-káng (Eng-gí: tax haven) á-sī pī-soè thian-tông (Hoat-gí: paradis fiscal) tong-siông sī chi̍t-koá soè-lu̍t (稅率) khah kē sìm-chí m̄-bián la̍p-soè--ê kok-ka iah-sī té-kui. Pī-soè-káng tong-siông sī khah khiàm chu-goân--ê tó-sū kok-ka iah-sī tē-khu. Ūi-tio̍h khip goā-lâi chu-kim, in iōng khah kē--ê soè-lu̍t sīm-chí bián-soè (免稅) lâi khip-ín khì-gia̍p iah-sī kok-jîn ti hia khui kong-si iah-sī hoat-jîn. In ē-tàng m̄-bián hō͘ chèng-hú khioh khah chē--ê soè, ē-tàng chiat-soè (節稅, ha̍p-hoat siám soè-kim) iah-sī hui-hoat lāu-soè.