✔ 
    Tags are available on all subscriptions
✔ 
    Project specific tags are available
    on Grow and Scale
    subscriptions 1 
Within Teamwork.com, tags are a way to mark items
    so that you can use a filter to see just those
    items. 
You can choose specific colors for each tag
    to help identify certain items with those
    tags, like adding a tag in red to show it's
    important. 
Tags can be added to projects, tasks,
    milestones, messages, time logs, notebooks,
    files and links. 
- A maximum of 20 tags can be applied to individual tasks. All other items can have up to 8 tags.
Tasks

Milestones

Notebooks

Search
You can also run searches for tags in the
    search bar using #tagname. 

You can also search for multiple tags on an
    item by entering them in the search field
    as #Tag1 #Tag2
    etc.
If a tag is made up of multiple words and
    has spaces in it, you need to enter the text
    in square brackets after the hashtag, for it
    to be returned.  

Tag limitations
- Each tag name can contain up to 50
        characters.
- A maximum of 20 tags can be applied to individual tasks. All other items (ex. projects, milestones, messages) can have up to 8 tags.
- Collaborators
        cannot create tags or add tags to projects
        and
        project items.
- The creation of
                        new tags may be
                        unavailable depending on
                        your site
            settings.

1. Also
        available on legacy
        subscriptions: Premium,
        Enterprise.
                