"All prices may be expressed in Bitcoin" and "All tax contributions may be paid in Bitcoin", states the Law. Thus, the Bitcoin is to compete directly against the US dollar, the other legal tender in El Salvador, a country that has not had its own currency since January 1, 2001. | "All prices may be expressed in Bitcoin" and "All tax contributions may be paid in Bitcoin", states the Law. Thus, the Bitcoin is to compete directly against the US dollar, the other legal tender in El Salvador, a country that has not had its own currency since January 1, 2001. |