This could be due to one or more of the following factors:

• Sprintax Calculus has indicated that you're eligible for tax exemption on a dollar limit for the tax year, however, administrative/technical restrictions at Harvard prevent us from granting treaty benefits when there's a dollar limit.
• On average, it takes around 1 month to process tax classification/treaty forms, and your submission is still in the queue.  Once it has been processed, however, your earnings will be tax exempt and we can...