How to Create a Milestone in Microsoft Project: 1-Min Guide

How to Create a Milestone in Microsoft Project

Updated on:

May 13, 2026

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Use this interactive demo to learn how to mark a task as a milestone in Microsoft Project.

Quick summary

Creating a milestone in Microsoft Project involves adding a new task and enabling the Mark as Milestone option in the Task Information dialog. This lets project managers visually flag key project checkpoints directly on the Gantt chart timeline.

Steps

Right-click on a cell number in the task list to open the context menu.
Click New Task to insert a new task row.
Navigate to the Information tab in the toolbar.
In the Task Information dialog box, select the Advanced tab.
Check the Mark as Milestone checkbox to designate the task as a milestone.
Click OK to save the changes and apply the milestone marker.

📌 Why this matters

Milestones in Microsoft Project are essential for tracking critical deadlines and key deliverables within a project schedule. By marking a task as a milestone, project managers can instantly identify major checkpoints on the Gantt chart, improving visibility across the entire team. This feature helps stakeholders monitor project progress at a glance without sifting through every individual task. Knowing how to create milestones in Microsoft Project is a foundational skill for effective project planning and on-time delivery.

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