Legal analysis: illegal. RMB is the legal tender in People's Republic of China (PRC). No unit or individual may refuse to pay all public or private debts in People's Republic of China (PRC) in RMB. Those who refuse to accept RMB shall be given administrative punishment by the People's Bank of China depending on the seriousness of the case. Government departments, administrative institutions, government agencies, business halls, toll stations and other places with charging functions, as well as food squares, tourist attractions, amusement centers, supermarkets, retail stalls and manned parking lots that are open to the public, shall accept cash payment from consumers. No unit or individual may indicate "no cash" or quote "no cash" as an advertising slogan in the business premises, and may not set discriminatory conditions for the people and consumers to use cash. China citizens should consciously safeguard the legal status of RMB and create a harmonious RMB circulation environment.

Legal basis: Article 3 of the Regulations of People's Republic of China (PRC) on the Administration of Renminbi is the legal tender of People's Republic of China (PRC). No unit or individual may refuse to pay all public or private debts in People's Republic of China (PRC) in RMB.