Originally Posted by
AtlantaTaxExpert
Strange:
1) While on OPT, you are liable for federal and California state income taxes while working in California. Once you moved to Texas, the California state income tax liability stops!
2) You are exempt from FICA (Social Security and Medicare) taxes while on OPT. You should contact your employer and request the refund these taxes. That process is both easier and faster than submitting Form 843 to the IRS to request the refund.
3) For every dollar you pay in FICA (Social Security and Medicare) taxes, your employer matches that dollar and pays the IRS on a monthly basis. That is why the employer should be willing to apply for the refund, because HE gets money back as well.
4) Neither 401K nor medical benefits has NAYTHING to do with the Medicare tax.
5 & 6) For a single person on a $35K salary, your marginal tax bracket is 15%, but you are right on the edge to cross over to the 35% tax bracket. How much you get after taxes depends on how many exemptions you claim on the Form W-4. The more exemptions claimed, the less income taxes are withheld.
BTW, an IRS regulation REQUIRES you claim SINGLE status with no more than ONE exemption on your W-4; this is done to ensure that enough money is withheld from yout salary to cover your tax liability.