Yes, you need to amend your 2017 return if you qualify and wish to claim the carry over part of the adoption credit. Please see the following instructions on how to amend your 2017 return.
https://ttlc.intuit.com/replies/6603004
1. Click
on the Search box and type Adoption credit.
2. Click on Jump to
3. TurboTax
will walk you through the questions.
4. Answer
yes to Did you file Form 8839 in a prior year.
5. Continue
answering questions.
6. Click
Done on Here's your adoptive child info page
7.
Let
us know if you have an adoption credit carryforward from prior years should
be the next screen (see picture below)
[Edit 2/2/2019 8:58pm]
