How to Insert Subtask in Microsoft Project

Quick summary

Inserting a subtask in Microsoft Project requires selecting a new task in the Gantt Chart view and using the Indent Task button under the Task tab to nest it beneath a summary task. This process organizes your project hierarchy so dependent work items are grouped correctly under their parent task.

Steps

1. Open the Gantt Chart view and click the row directly below the summary task to enter new tasks.
2. Select the newly added task row you want to convert into a subtask.
3. Navigate to the Task tab in the Microsoft Project ribbon.
4. Click the Indent Task button to insert the selected task as a subtask under the summary task.
5. Confirm the task now appears indented as a subtask nested beneath the summary task in the project hierarchy.