Jiaxing social security can't buy a house after one month. According to relevant public information, Jiaxing's housing purchase policy has been adjusted. If you need to buy a commercial house in Jiaxing, you need to pay the social security fee for 6 months before you can buy it. Jiaxing, also known as he cheng, is a prefecture-level city in Zhejiang Province, an important city in the Yangtze River Delta urban agglomeration and Shanghai metropolitan area, and a core city around the Greater Bay Area of Hangzhou Bay.