1. Since I'm on OPT, I should not have to pay FICA, medicare and NYC resident taxes. So are these taxes refunded when I file the tax return in the next year, or simply not deducted from my paycheck at all?
2. If I am receiving a signing bonus of a large amount, are taxes withheld as if I'm earning that much on every single paycheck? If not, how do they decide how much to withhold?
Thanks for answering!