Yes, once your original return has been processed, you'll need to file an amended return, even though there's no additional tax owed. The IRS needs this to be reported.
Please see the
TurboTax FAQ "How to amend (change or correct) a return you already
filed," below, for instruction on how to amend your previously-filed tax
return.
https://ttlc.intuit.com/replies/3288565
.
