I live in Korea. I want to file for an extension using TurboTax Easy Extension. The software requires I enter a value for State, a value for Zip, and a Phone. What now?

[KarenJ]

If you need to file an extension for US taxes and you have a foreign address, you need to print and mail the Form 4868 (link attached).  Please check the box that you are out of the country and a US citizen or resident. 

If you also have a state filing requirement, please go to the state tax website and see the state's extension requirements to see if a state extension must also be filed.

The address for mailing the federal extension is attached to the instructions.

https://www.irs.gov/pub/irs-pdf/f4868.pdf