Currently, no accurate source of information is legally recognized as a violation of the law by Bitcoin. But there are still two waves of Bitcoin that are legitimate Bitcoin and Bitcoin multi-level. If they want to handle cases showing signs of law violation or violation of State management regulations, they must have evidences and documents of law. Using, trading, owning Bitcoin in Vietnam is not a violation of law but is not adjusted. When Bitcoin is "tuned", many people will believe and understand the meaning of Bitcoin, but in fact, Bitcoin is "not adjusted" is an advantage for businesses because Bitcoin transaction costs are low, not tolerate. Any tax, paid nationwide, in particular, is not bound by any applicable law.