Yes you need to amend to add the K-1 to your personal return. See the link above.
To enter a K-1 go to
Federal Taxes Tab or Personal (Home & Business version)
Wages and Income
Then scroll way down to Business items
Schedules K-1, Q - Click the Start or Update button
Be sure to pick the right kind of K-1. There are 3 kinds, 1041, 1065 & 1120S
Enter each k-1 separately.
