If you have checked your country's treaty with the U.S. and have found you qualify for a treaty exemption on your wage or scholarship income, you must file Form 8233, Exemption From Withholding on Compensation for Independent (and Certain Dependent) Personal Services of a Nonresident Alien Individual, with the payor of the exempt income. You must include with Form 8233 a statement detailing your eligibility for the specific tax treaty exemption. You will find sample statements for each treaty country in Publication 519, Appendix A (for students) and Appendix B (for teachers and researchers). Form 8233 and Publication 519 can be downloaded from the U.S. Treasury's Forms and Publications site, or you can call 1-800-TAX-FORM (1-800-829-3676) and ask for them to be mailed to you.