Turbotax will calculate the correct carryover. if you do not have income, the return will still show up to a $3,000 loss ($1,500 if married separate) the loss on line 7 of the 1040. this is how the IRS wants it. In fact, none will be used, so the following year you'll have the full amount
if you save a pdf of the return - all forms there should be a capital loss carryover worksheet.
if not you can calculate it yourself page d-11
https://www.irs.gov/pub/irs-pdf/i1040sd.pdf
