If you need more time, you can file Form 4868(link is external) to request an automatic extension of time until August 15. You will not be notified if the extension request is approved, it is automatic.  If you owe any taxes, you must still mail the estimated tax payment by the tax filing deadline in April or you will be assessed penalties and interest on any payment owed. Be sure to sign and date the forms and keep copies for your records.

Filing a tax return is required by law. One of the conditions of your visa is to comply with U.S. law. If you owe taxes and don’t file, the IRS can assess penalties, interest and seize U.S. bank assets for repayment. Fines and penalties can often amount to more than the original tax debt. There can also be immigration consequences for failing to file taxes. Applicants for permanent residency or “green cards” are frequently asked to show proof of tax filing for previous years in the U.S. In addition to the legal requirement, if you are owed a refund, filing a tax return is the only way to receive it.

If you were employed and want to know where to find your W-2,
If you have not received Form W-2 or Form 1099-R or received an incorrect form or information, contact your employer. You may not have received the form because of an incorrect or incomplete address. Be sure to verify the address used if already mailed. If the form was returned to the employer because of an incorrect address, or never mailed, and the employer intends to issue or re-mail, allow a reasonable amount of time for this action to occur before calling the IRS for help.

To determine if the sale of inherited property is taxable, you must first determine your basis in the property. The basis of property inherited from a decedent is generally one of the following:
The fair market value (FMV) of the property on the date of the decedent’s death (whether or not the executor of the estate files an estate tax return (Form 706, United States Estate (and Generation-Skipping Transfer) Tax Return)).The FMV of the property on the alternate valuation date, but only if the executor of the estate files an estate tax return (Form 706) and elects to use the alternate valuation on that return. See the Instructions for Form 706.For information on the FMV of inherited property on the date of the decedent’s death, contact the executor of the decedent’s estate. Also, note that in 2015, Congress passed a new law that, in certain circumstances, requires the recipient’s basis in the certain inherited property to be consistent with the value of the property as finally determined for Federal estate tax purposes. Check What’s New – Estate and Gift Tax for updates on final rules being promulgated to implement the new law.
If you or your spouse gave the property to the decedent within one year before the decedent’s death, see Publication 551, Basis of Assets.
Report the sale on Schedule D (Form 1040), Capital Gains and Losses and on Form 8949, Sales and Other Dispositions of Capital Assets:
If you sell the property for more than your basis, you have a taxable gain.For information on how to report the sale on Schedule D, see Publication 550, Investment Income and Expenses.Under the new law passed by Congress in 2015, an accuracy-related penalty may apply if an individual reporting the sale of certain inherited property uses a basis in excess of that property’s final value for Federal estate tax purposes. Again, check What’s New – Estate and Gift Tax for updates on final rules being promulgated to implement the new law.
For estates of decedents who died in 2010, the basis is generally determined as described above. However, the executor of a decedent who died in 2010 may elect out of the Federal estate tax rules for 2010 and use the modified carryover of basic rules