Hello! I've worked in the US for summer 2014 as an Work&Travel participant (J1 visa). I have filled form 1040-nrez, but my employer won't give me my W2, I tried to contact him, but he's a careless person so it's not gonna work. I found out that you can file Form 4852 instead of W2 (I have my last paycheck with me). Can someone clarify what I need to send to IRS along the form? I mean, additional documents, copies, etc. Thank you

Yes you need to send the form 4852 to the IRS with your tax return. They'll forward the info to social security. Note in the instructions that they suggest checking your social security records in a year, to make sure the info got to them. Just below the title of the form is the notation Attach to Form 1040, 1040A, 1040-EZ means that you need to file the tax return using the information you enter on Form 4852. File the return with the IRS Service Center shown in the instructions according to where you live.you do not need to send copies of other worksheets/ schedules. Please contact the IRS as you do not receive your W-2 by February 14th, contact the IRS for assistance at 800-829-1040. When you call, you must provide your name, address, city and state, including zip code, Social Security number/itin , phone number and have the following information: your Employer’s name, address, city and state, including zip code and phone number;Dates of employment;An estimate of the wages you earned, the federal income tax withheld, and when you worked for that employer during 2014. The estimate should be based on year-to-date information from your final pay stub or leave-and-earnings statement, if possible. The you may file your return You still must file your tax return or request an extension to file April 18, 2011, even if you do not receive your Form W-2. If you have not received your Form W-2 by the due date, and have completed as above, you may use Form 4852.Attach Form 4852 to the return, estimating income and withholding taxes as accurately as possible. There may be a delay in any refund due while the information is verified.

note; also you may file a Form 1040X On occasion, you may receive your missing W-2 after you filed your return using Form 4852, and the information may be different from what you reported on your return. If this happens, you must amend your return by filing a Form 1040X, Amended U.S. Individual Income Tax Return.

Form 4852, Form 1040X, and instructions are available at Internal Revenue Service or by calling 800-TAX-FORM (800-829-3676).