Whether you are a visitor to the United States or a U.S. citizen arriving in the United States, you must complete one or more entry forms. You must complete the CBP Declaration Form 6059B.
If you are Chinese and in the U.S. solely for the purpose of your education, you may be able to exclude up to $5,000 of income that you receive from work performed in the U.S. Under the U.S.-China treaty, taxable scholarships and fellowships are also excluded from income.
For income that is not earned from personal services, the payee files Form W-8BEN. For income earned from personal services, the payee files Form 8233.
IRS Form 8833 Filing Instructions Complete your basic details, including your name, country of residence, and Taxpayer Identification Number (ITIN). Check the box for whichever treaty section of the Code you're relying on—6114 or 7701(b).
Form 8233. The Form 8233 (pdf) should be used by nonresident alien students, teachers, and researchers to claim exemption from withholding on compensation for services that is exempt from taxation under a U.S. tax treaty.
The payee must file a U.S. tax return and Form 8833 if claiming the following treaty benefits: A reduction or modification in the taxation of gain or loss from the disposition of a U.S. real property interest based on a treaty. A change to the source of an item of income or a deduction based on a treaty.
Therefore, a U.S. citizen or U.S. treaty resident who receives income from a treaty country and who is subject to taxes imposed by foreign countries may be entitled to certain credits, deductions, exemptions, and reductions in the rate of taxes of those foreign countries.