Settlement of foreign exchange refers to the behavior that the owner of foreign exchange income sells his foreign exchange income to the designated foreign exchange bank and pays the equivalent in local currency at a certain exchange rate. In the past, you had to go to the bank to handle foreign exchange settlement, and you had to log in to the safe system to declare information. Several pilot banks such as Bank of China and ICBC were established two years ago. Last year, more commercial banks were licensed, and the intermediate process of self-service foreign exchange settlement was cancelled. As long as each person is within the $50,000 quota set by SAFE every year, they can settle foreign exchange through online banking and other channels without going to the business hall. Auditing settlement of foreign exchange is also a settlement audit, which is a necessary process for self-service settlement of foreign exchange. The system will check the quota information online with SAFE in real time, which is the final process of approving individual self-service foreign exchange settlement.