Started to buy social security on 20 16. How many years will it take?

At least 15 years. The Social Insurance Law stipulates that receiving a basic pension must meet two conditions: first, it must reach the statutory retirement age; Two, to participate in the basic old-age insurance individual cumulative payment 15 years. It should be noted that the minimum payment period is 15 years, which does not mean that they can not pay after paying 15 years. So if they started to buy social security in 2065,438+06, they should buy it at least in 65,438+05.