If the purchaser transfers affordable housing in the market, he shall pay the relevant price such as land income to the government according to a certain proportion of the price difference between ordinary commodity housing and affordable housing in the same location at that time. The specific payment ratio is determined by the people's government of the city or county, and the government can give priority to repurchase. Measures for the Administration of Affordable Housing (J.J. [2007] No.258): Article 29 After purchasing affordable housing, individual residents shall register their ownership in accordance with relevant regulations. Housing and land registration departments shall indicate the indemnificatory housing and land allocation respectively when handling ownership registration. Thirtieth affordable housing buyers have limited property rights. The purchase of affordable housing for less than 5 years, shall not be directly listed. If the purchaser really needs to transfer affordable housing for special reasons, the government will repurchase it according to the original price and considering factors such as depreciation and price level. The purchase of affordable housing for five years, the purchase of affordable housing listed for transfer, it should be in accordance with a certain proportion of the price difference between ordinary commodity housing and affordable housing in the same lot at that time to the government to pay land revenue and other related prices, the specific payment ratio is determined by the people's government of the city or county, the government can give priority to repurchase; Property buyers can also obtain full property rights after paying the relevant price such as land income to the government according to the standards set by the government.