The IRS just released this information 2 days ago regarding Form 8915-E. Because Form 8915-E is new and impacted by recent legislation, it has not been enabled in XML for e-filing, and e-filed return in After you file
Fidelity has started releasing tax forms, but the import option in Turbotax is still disabled with the prompt saying to check back in after Jan 31st. How to enable it? in Get your taxes done using TurboTax