Only two countries have officially legalized BTC as legal tender: El Salvador and the Central African Republic. El Salvador became the first in June 2021, enacting the Bitcoin Law to allow BTC for transactions alongside the U.S. dollar, aiming to boost financial inclusion and remittances. The CAR followed in April 2022 but reversed this decision in March 2023 due to economic challenges, low internet access, and implementation issues, leaving El Salvador as the only country actively using BTC as legal tender. Other nations, like the U.S., Japan, and Canada, permit Bitcoin use and trading under regulatory frameworks, often treating it as property for tax purposes, but do not recognize it as legal tender. Global cryptocurrency laws vary, with 119 countries legalizing crypto use, though most refrain from granting BTC official currency status due to volatility and regulatory concerns.