I would like to add a k-1 to my taxes that I already declared , how can I do that?

If you have already filed your return, please wait to see if your return is accepted or rejected. If rejected, you may correct and resubmit. If it is accepted, you need to file an amended return to add this Schedule K-1.

If you are expecting a refund, we recommend that you wait to amend until after the IRS has processed your original return and you have received your refund.

To amend your tax return, please read this TurboTax article. 

To add the Schedule K-1, follow these steps:

1. In TurboTax Online, click on Search (magnifying glass icon) at the top right of your screen
2. In the Search box, enter K-1 and click on the magnifying glass icon
3. In the search result box, click on Jump to K-1
4. TurboTax will take you directly to the section where you can start entering your Schedule K-1.