If you are using TurboTax Online, you can check what version you are using by looking at the left side under the TurboTax logo. This can be different on each return file that you have in your account.
If you are using TurboTax CD/Download (for Windows), you can check what version you are using by looking at the very top of the window on the left side. You can also select Help > About TurboTax from the topmost menu to see detailed information about what software you are using.
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