Enable Expense Tracking
This feature needs to be enabled by an Administrator under the settings (gear icon) in the top right for All Workspaces under GLOBAL SETTINGS – Features to display. In the Main Features section, under Projects, click the checkbox next to Expense Tracking in the ENABLED FEATURES column.
Within the main Projects area, you will now see a new "EXPENSE" column for adding expenses to tasks. Under the Reports link at the top of the screen, you will now see a section for EXPENSES.
Also, when viewing the details of a Project, an "Expenses" tab will display the logged expenses for that project.