Hi. On April 14, I mailed a form 4868 to apply for tax extension. I am a non-resident alien and this is my first year in the US. Since I do not have yet SSN or ITIN, I had to apply for tax extension. I sent it last week to Internal Revenue Service center in Kansas City in MO via USPS certified mail. However, the USPS tracking system still shows that it has been still in transit since April 17. Last movement is that "Departed USPS Regional Destination Facility in Kansas City. I have a doubt that it might have been lost. I filed a missing mail at USPS.com.
What can I do now? I do not owe any taxes, actually I will get some refund. However, the deadline was April 18. Do I need to mail another document to IRS with certified mail receipt? How can I learn if the IRS office received and processed my tax extension application?
Thank you.
