To view Budget data for a tag, you will need to be assigned Budget access.
Navigate to the team, simply click on the View Budget button in the top left corner of the team board. This will reveal the Budget data for each role as well as the whole Team metrics. Once Budget data is viewable, select the tag(s) to filter from the Tags filter box at the top of the team board. Activities will be filtered and the associated FTE and Budgets will be displayed in the Team metrics.