IRS Tax Forms  
Publication 519 2001 Tax Year

Introduction

Table A. What You Need To Know About Taxes

For tax purposes, an alien is an individual who is not a U.S. citizen. Aliens are classified as nonresident aliens and resident aliens. This publication will help you determine your status and give you information you will need to file your U.S. tax return. Resident aliens generally are taxed on their worldwide income, the same as U.S. citizens. Nonresident aliens are taxed only on their income from sources within the United States and on certain income connected with the conduct of a trade or business in the United States.

Table A, What You Need To Know About U.S. Taxes, provides a list of questions and the chapter or chapters in this publication where you will find the related discussion.

Answers to frequently asked questions are presented in the back of the publication.

The information in this publication is not as comprehensive for resident aliens as it is for nonresident aliens. Resident aliens are generally treated the same as U.S. citizens and can find more information in other IRS publications.

Comments and suggestions. We welcome your comments about this publication and your suggestions for future editions.

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Internal Revenue Service
Technical Publications Branch
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