Hi, I have been working on OPT since June 2010 with F1 status.
My employer is in Texas. He is deducting almost 18.75% Federal income tax from my pay stub. Please suggest me should I pay that tax. If yes, How can I save the most of it.
Are there any other taxes, which I have to pay.

Thanks
Saurav.

What's "OPT"

You have not posted nearly enough information here, and you probably should not.

You need to see an accountant.

Thanks AK.