How To undo completed tasks in Todoist(2025): easy guide

If you’ve accidentally completed tasks in Todoist and realized it way after the 5-second Popup, don’t panic! In this guide, we’ll show you how to undo completed tasks in Todoist and bring them back. even after the 5-second popup. Let’s get started!

In this article, we’ll explore the different methods you can use to undo completed tasks in Todoist. Whether you’re trying to undo a one-time task, a recurring task, or tasks within a project, we’ll cover all the essential techniques you need to know.

Table of Contents

How to Undo Completed Tasks in Todoist

Undoing a completed task in Todoist is a straightforward process, though the ability to do so may depend on whether you’re using the app on a desktop or mobile device. Here’s how to undo a completed task in Todoist:

Using the Web or Desktop App

go to your Inbox (web or desktop version).
On the left sidebar, click on “Completed” to view your completed tasks in Todoist.
Find the task that you want to uncomplete and click on it to open the task details.
In the task details window, you’ll see a small checkbox. Uncheck this box to mark the task as incomplete again.

The task will return to its original location in your task list.

Click on completed tasks in Todoist view — Click on “completed task.”

Click on the Checkbox on completed tasks — Click on the checkbox

Using the Mobile App

open the Todoist app on your mobile device.
Tap on the “Filter” or “Completed” option from the menu to view all your completed tasks.
Find the task you wish to undo and tap on it to open the task details.
Tap on the checkbox next to the task to uncheck it, and the task will be marked as incomplete again.

By following these simple steps, you can easily undo a completed task and bring it back into your active task list.

Check out “Todoist vs Motion.“

How to Undo Recurring Completed Tasks in Todoist

Recurring tasks in Todoist present a unique challenge when it comes to undoing completed actions. Unlike regular tasks that simply reappear after being uncompleted, recurring tasks may have a new instance scheduled. Here’s how to undo recurring tasks in Todoist:

Undo a Recurring Task that Was Accidentally Marked as Completed

Navigate to the “Completed” section, where you can find all completed tasks.
Look for the recurring task that you accidentally marked as complete.
When you open the task, you will notice that Todoist may have automatically scheduled the next instance of this recurring task.

If this is the case, simply click on the task, and you’ll have the option to reschedule it or uncheck the box to undo the completed task. The recurring task will be restored, and the next instance will be rescheduled accordingly.

Undo a Recurring Task After Completing Multiple Instances

If multiple instances of a recurring task have been completed, you can go to the task details and uncheck the individual instances one by one.

Alternatively, you can use the activity log (available in the project view) to view and manage all actions associated with that recurring task.

You can use the log to see past completed instances and even make adjustments to the task’s future scheduling.

Pro Tip for Recurring Tasks:

If you’re frequently marking recurring tasks as complete by mistake, consider adjusting your settings or creating a confirmation prompt before marking tasks as completed. This can help prevent accidental task completion in the future.

Learn more: “How to assign a single task to multiple people in Todoist.“

How to Manage Completed Tasks Through the Project Section

In Todoist, projects allow you to organize tasks and track progress across different areas of your life. If you’re managing multiple projects and want to keep track of completed tasks within a specific project, it’s important to know how to manage them effectively.

View Completed Tasks Within a Specific Project.

Go to the project section of your Todoist app and open the project where the task was completed.
On the top right corner, click the three vertical dots (more options) and choose “Show Completed Tasks” from the dropdown menu.
This will allow you to see all completed tasks within that project.
From here, you can click on any task to open it and uncheck the box to undo its completion.

Undoing Completed Tasks from the Project’s Activity Log

Another way to manage completed tasks within a project is to access the activity log.

From the project view, click the three dots at the top-right corner and select “Activity Log.”
This log will show a history of all actions taken within the project, including completed tasks.
By accessing the activity log, you can see when tasks were marked as complete, and you can take action to undo the completion.

Archiving and Restoring Projects
If you no longer need to work on a project but don’t want to delete it entirely, consider archiving the project. This keeps it in your system, but it’s not visible in your active projects list. You can always restore archived projects if needed by clicking on “My Projects” in the sidebar and selecting “Archived” projects.

Check out how Google Tasks compares to Todoist: “Google Tasks vs Todoist.“

How to Delete Completed Tasks in Todoist

While it’s important to know how to undo completed tasks, there are times when you may want to permanently remove tasks from your Todoist account. Whether it’s for decluttering your task list or simply to delete irrelevant tasks, here’s how you can delete completed tasks in Todoist:

Delete a Single Completed Task in Todoist

Open the “Completed” section to view all of your completed tasks.
Click on the task you wish to delete.
In the task details, click the three dots (more options) and select “Delete” from the dropdown menu.
Confirm the deletion and that the task will be permanently removed from your task list.

Delete Multiple Completed Tasks in Todoist

If you need to delete several completed tasks at once, Todoist allows you to select multiple tasks from the “Completed” view.

Use the checkboxes next to each task to select multiple tasks.
Once selected, click on the three dots (more options) at the top and choose “Delete.”
Confirm the action and the selected tasks will be permanently removed.

Delete Completed Tasks in the Project Section:

You can delete tasks directly from the project section by showing completed tasks (as mentioned in the previous section).

After selecting the tasks you want to delete, click the three dots and choose “Delete.”

Permanent Deletion Keep in mind that once tasks are deleted, they cannot be recovered. Make sure you’re certain before deleting any task permanently.

Conclusion

Undoing completed tasks in Todoist is a useful feature that can help you correct mistakes and manage your tasks more efficiently. Whether you’re working with one-time tasks, recurring tasks, or tasks within a project, Todoist offers several ways to restore tasks or manage them more effectively.

Additionally, knowing how to delete completed tasks can help keep your task lists organized and free from clutter. By mastering these techniques, you’ll get the most out of Todoist’s features and be able to navigate your task management with ease.

Check out: “Trello vs Todoist.”

How to Undo Completed Tasks in Todoist(2025): Simple and easy guide.