As a US citizen, you are legally required to file a US tax return and you are subject to US income tax on your worldwide income, even if you do not live within the US and its territories and/or have no US income.
You may avoid double taxation on your foreign earned income if you qualify for the Foreign Earned Income Exclusion and Foreign Tax Credits. TurboTax can handle these situations.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
