A capital loss carryover does not get entered directly on form 1040. A long term capital loss carryover shows on line 14 of Schedule D. A short term capital loss carryover shows on line 6 of Schedule D.
The carryover loss(es) will fist be combined, on Schedule D, with any other capital gains and/or losses for 2017 and the net gain or loss goes to line 13 of form 1040.
