How to calculate overpaid SocialSecurityTax?

來源: 2014-02-01 17:27:10 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:

(1) On line 69 of form 1040, I believe I overpaid a lot based on the information I found online.
it 4.2%  of your AGI or just the total on line 7?

(2) Which form I should use to ask back the withheld social security tax due to job change, is it form 843?
(3)So I can put that number on line 69 of 1040.


(4)How about Medicare tax withheld, if I overpaid, which form I need to use to figure it out? it seemsnolineson 1040
to take acre of it. Thanks.

This is a complicated one.

I appreciate it! Expert!