You can e-file from anywhere in the world where you have internet access. Do be aware that you have to pay your TurboTax fees with a U.S. based credit card, and that the IRS will not make a direct deposit to a foreign bank. The IRS will only mail a check to a foreign country.
https://ttlc.intuit.com/questions/1901301-what-forms-of-payment-does-turbotax-online-accept
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**