You can add it in now if you have not filed yet.
However, if you have already filed, you can file an amended tax return and include the 1098-T later. The software is not ready yet; it will be available next month. So, you can come back and see about filing the amendment then. If it turns out that you don't qualify for any education credits, or there is not scholarship income to claim, then you do not need to file the amendment.
