Legal analysis: it is illegal to exchange RMB without permission, and the illegal income will be confiscated. If the illegal income is more than 500,000 yuan, a fine of 1 times but less than 5 times shall be imposed. If there is no illegal income or the illegal income is less than 500,000 yuan, a fine of not less than 500,000 yuan but not more than 2 million yuan shall be imposed.

Legal basis: Article 46 of the Regulations on Foreign Exchange Control in People's Republic of China (PRC). Those who engage in foreign exchange settlement and sale business without approval shall be ordered by the foreign exchange administration authorities to make corrections. Illegal income, confiscate the illegal income, illegal income of more than 500 thousand yuan, a fine of 1 times more than 5 times; If there is no illegal income or the illegal income is less than 500,000 yuan, a fine of not less than 500,000 yuan but not more than 2 million yuan shall be imposed; If the circumstances are serious, the relevant competent department shall order it to suspend business for rectification or revoke its business license; If a crime is constituted, criminal responsibility shall be investigated according to law.