It depends, if you had a Qualified Distribution then Form 8606 part III isn't filled out for a Roth IRA distribution. Are you over 59 1/2 and had the Roth IRA for 5 years?
To view all forms and worksheets after you filed:
Thnaks, I am younger than 59. Joint income >240,000. Did a back door roth IRA.
If you performed a backdoor Roth then you should have Form 8606 included with your return. Please review the instructions How do I enter a backdoor Roth IRA conversion?