Within Teamwork, you can delete users from
your site, preventing them from logging in
again.
Note: Deleting
a paid user will not remove them
from your
subscription. To
prevent future
charges for
deleted users,
you will also need
to update the user count for your subscription.
When a user is deleted, they will
remain in the Deleted People trash can for 30
days.
Any files the user has uploaded, time logged,
comments or messages added, or other content
they have created will remain on your site
after the user is deleted.
If the user currently has any active tasks or
milestones assigned to them, you will be
prompted to choose whether to reassign those
items.
In the Workload view, tasks
not reassigned will have their associated time
listed with the deleted
user label.
Click the More option in the left navigation menu on your site and select People from the pop-out menu.

When viewing the People area, go to the People tab.

Select the user you wish to delete from the
list to open their profile. In their profile,
click the options button (three dots) in the
top right and select Delete User from
the dropdown.

You can then choose what to do with the
user's active tasks and milestones.

Choosing the Just
unassign option will result in
the tasks and milestones being assigned to Anyone.
If you choose to reassign the items, you will
have options to pick a person and choose
whether to reassign the tasks and/or
milestones to them.
Note: Once this process of reassigning
is complete, it cannot be undone.

For more information, see: Adding People to a
Project