Thank you very much! One more question though

來源: 於 2015-08-23 13:38:57 [舊帖] [給我悄悄話] 本文已被閱讀：次

If my parents need to file income tax, what documents they need to show to IRS to prove their foreign income (i.e., 退休金) ? 

Many thanks for your constructive comments!