入职不到一年辞职怎么退还sign on bonus？

当初接了现东家的offer，sign on bonus $40K，到手接近$30K. 去工作了一段时间，不到一年，发现与老板格格不入，现在跳槽去另外一家公司。按照现东家当初的合同说，工作不满一年辞职，要全数退还sign on bonus, 这种情况是退还$30K+, 还是$40K?  原合同是这么说的

In the event that you leave the Company of your own volition prior to completing 12 months of employment, this bonus is repayable in full to Example Inc. You hereby authorize Example Inc to set-off this amount of indebtedness from wages. In the event that there remains a balance owing to Example Inc, we will require immediate payment of the balance and you agree to make such repayment.

40k把 然后报税的时候可以扣掉

我也来问一下！目前看样子，好像都是退税前，然后报税的时候你的收入扣掉这部分，所以可以退回来