Buying foreign exchange in the bank is very simple. You need to bring your ID card and passbook or savings card and fill out a foreign exchange purchase form at the bank (the list of each bank is different). However, at present, SAFE has a quota limit on the purchase of foreign exchange by domestic people. Each person can buy foreign currency equivalent to $50,000 a year, but you can transfer it to your immediate family, which means you can use the quota of your wife and children to buy foreign exchange, but you must show relevant certificates, such as household registration book and marriage certificate.