should parents apply social security card after receving greenca

来源: mini_ok 于 2013-02-18 13:27:51 [旧帖] [给我悄悄话] 本文已被阅读：次

My parents have TIN number for tax returns.Do they need social security numbers after they got their green card?

They do not need go to work in US since they already over 70 years old.

What's the benefit if they have the SSN?

Thanks in advance

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