How to calculate overpaid SocialSecurityTax?

(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!

所有跟帖： 

• 人家不會錯的， 隻有你錯, 別鑽牛角尖了 -xiaoxiao2013- ♀ (0 bytes) () 02/01/2014 postreply 19:21:17

• 工資超過十萬，年中又換工作，有可能多付 -lexm5- ♀ (144 bytes) () 02/01/2014 postreply 19:38:03

• 老早回到6.2%了。4.2%過時了 -Manymore- ♀ (0 bytes) () 02/01/2014 postreply 21:15:39

• Medicare is 1.45%, 加起來是7.65%. -Manymore- ♀ (0 bytes) () 02/01/2014 postreply 21:17:48

• Thank you 回複：How to calculate overpaid SocialSecurityTax? -freecall- ♂ (32 bytes) () 02/02/2014 postreply 08:44:56