Can have $3,000 capital loss on 2018 return. How do I get it recorded on return?

[Coleen3]

When you enter the 1099-B, the program will calculate any gains or losses on Form 8949 (Sales and Other Dispositions of Capital Assets). Then it will carry to Schedule D and then to Schedule 1 Line 13. 

If it is a carryover from an earlier year, and you have to enter it manually, type capital loss carryover in the search bar and click Jump to.