How to Set Milestones in Microsoft Project

Updated on:

May 13, 2026

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Use this interactive demo to learn how to mark tasks as milestones in Microsoft Project.

Quick summary

Setting milestones in Microsoft Project lets project managers mark key deliverables and deadlines directly on the Gantt Chart. This five-step process uses the Task Information dialog to flag any task as a milestone in seconds.

Steps

In your Gantt Chart view, enter your task lists.
After selecting a task, click 'Information'.
Click the 'Advanced' tab.
Check 'Mark task as milestone'.
Click 'OK' to set the milestone in Microsoft Project.

📌 Why this matters

Milestones in Microsoft Project are critical markers that help project managers track major deadlines, deliverables, and phase completions within a project schedule. By flagging tasks as milestones using the Task Information dialog, teams gain instant visual clarity on the Gantt Chart, making it easier to communicate progress to stakeholders. This feature ensures that high-priority checkpoints are never buried in a long task list, improving overall project visibility and accountability. Understanding how to set milestones correctly in Microsoft Project is an essential skill for anyone managing complex, deadline-driven projects.

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