My fiancée has been posted to Long Beach for on a one year contract. However we are unsure of our tax obligation. We understand that there are state tax, federal tax and withholding tax and is unsure what is the percentage. We were told that certain % is bond by the company. What is the tax rate like and how is payment made? Thank you.

Under the H-1B visa (a work visa), you are subject to state and federal income taxes, which are progressive in nature and depend on the level of income to determine the rate at which he will pay.

He is also liable for Social Security (6.2%) and Medicare (1.45%), which are FLAT taxes withheld at the percentages noted.

Your income is subject to all the taxes that a U.S. citizen or resident pays.
Your federal and state income tax rate will depend upon your total income, your filing status and if you will file resident tax return or nonresident return in the first year.