I have already done both my business and personal taxes. However, I did not file my partnership return. What can I do? Do I need to amend my personal income tax?

A partnership tax return, Form 1065, can only be completed using the TurboTax Business Edition.

Go to this TurboTax website to purchase, download and install the Business Edition on a Windows based personal computer - https://turbotax.intuit.com/small-business-taxes/cd-download/