Assuming this is a distribution such as from an Alaska native corporation, you can report it in the Form 1099-MISC section of TurboTax.
To enter a 1099-MISC for miscellaneous income in TurboTax:
Open or continue your return.
Select Search and search for 1099-misc.
Select Jump to 1099-misc.
Answer Yes to Did you get a 1099-MISC? ...
Enter the info from your form into the corresponding boxes.
When you get to the screen, Does one of these uncommon situations apply?, select "This was a tribal member gaming payment".
Although the distribution doesn't involve gaming, this choice it identifies it as a per capita distribution from a Native entity so that it doesn't get misclassified as self-employment.