I apologize for the oversight on my part. Yes, she can file an extension until October. If she wants to use the June 15, deadline for taxpayers abroad, you need to also file Form 4868 and check the box that she is living outside the country.
Then when she is preparing her return, she needs to add a statement that she qualifies for the June 15, 2020 extension.
Please note that interest still accrues from April 15 to June15, but not penalties. So you would need to pay interest on any tax not paid from April 15, 2020 to June 15, 2020. There is a statement in TurboTax that will be attached to your return to get the automatic June 15th extension.
In the search box enter extension, filing, additional and click the Jump to link. You need to enter it exactly with the commas. Click yes you want an extension and then on the next screen click that you want to prepare and out of country extension.
In my previous response to you I was advising you that if she wishes to qualify for one of the foreign tests for Form 8938, the 330 day test must end in 2019 not 2020. So for 2019 filing of Form 8938, she is considered a taxpayer living in the US.
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