If you are using TurboTax Do It Yourself (Online), then you'll need to use Premier (or higher) to report investment income, capital gains/losses, and foreign income. Do you have that kind of income on your return?

This usually happens in TurboTax when your return includes something that requires a higher version. Your return likely includes something that requires Premier. You can visit this link to know which slips are covered in the $21 version(Deluxe) and slips covered by the $40 (Premier) -Choose your TurboTax product. 

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