Is Bitcoin legal? Yes, math is not illegal
Yes, Bitcoin is legal; how could a government forbid the transfer of data around the globe? Bitcoin is currently legalized by various governments, including the United States. The straightforward indisputable fact that powerful governments have begun to pass laws and attempt to define regulation is a robust indication of how powerful Bitcoin has become.
There are few countries that have attempted to ban Bitcoin and all other digital currencies. However, these countries have some of the most hyper-inflated currencies in the world. They are simply frightened by a new medium of exchange that will continue to suffocate their drowning currencies.
If you’d wish to stay up-to-date on all the Bitcoin laws and regulations, The Library of Congress keeps track of the Regulation of Bitcoin in Selected Jurisdictions.