Can I file an amended return with TurboTax?

If you used TurboTax to file the return in the first place, then yes, you can use ReFile to change the return. 

How do I refile an amended return with Turbo Tax Business Incorporated

We recommend that you go to our TurboTax link here—scroll all the way down until you see what is in the screenshot and click on Connect Now, as they will be able to direct you. 

Thank you for choosing TurboTax.