I’m a US citizen but my parents aren’t and they live in a foreign country. How do I know their tax filling status?
If they won’t file U.S IRS return…you put “will not file”. You will need to get a non-filers statement and on that it indicates reasons why. Yours will be because they live in a foreign country.
Are you doing the FAFSA NOW for fall 2018 enrollment and aid?
https://fafsa.gov/help/fftoc06j.htm
There should be a way to choose that they file a foreign tax return.