2. Old-age insurance is ok, because old-age insurance is the cumulative calculation of payment years, so medical insurance is not necessary. If it is cumulative calculation, you can use. If it is calculated continuously, it will automatically become invalid because it exceeds the time limit, and the previous payment period will no longer be calculated. Unemployment insurance will be invalid if it is not paid. Of course, if you have paid 1 year and proved to be involuntarily unemployed, you can get unemployment benefits after going through the formalities such as unemployment certificate. I think that if an individual is insured, if he can pay, he usually needs to pay, and of course he will charge some late fees.
3. At present, the old-age insurance can't get the exact figures, but can only tell you a basic calculation formula.
Average salary of local society+personal indexed salary in the year of retirement) /2* payment period * 1%+ number of pieces (personal account funds/120)
Because the social security regulations will be different from place to place, the specific situation mainly depends on the regulations of the location of your account.
If I were you, I would suspend payment (because I don't care about the elderly in China, in fact, I have paid a lot of money for nothing), and then the pension insurance will be temporarily closed, and the future direction will be roughly decided before payment. If I do this, I can reduce some uncertainties, but I may also face some policy risks, because the social security policy is beyond my control.
As for my friend's answer, "1978_sh", I would like to add that the accumulation here only refers to personal accounts, and the overall part of the money will definitely not be enjoyed if it is not in China in the future. The proportion of individual participation is 20%, of which only 8% goes into individual account, and 12% goes into overall planning. If you are not in China in the future, you will naturally disappear.