Answer:
Carry-forward to 2020 = $200
Step-by-step explanation:
In case of no election with regards to NOL, For year prior 2018, NOL will automatically carryback.
But after year 2018, NOL can only be carryforward inficately, lessor of actual NOL or 80% of taxable income.
Therefore, NOL of $15,000 will be carried back
But loss of $5,000 will be carryforward up to 80% of Taxable Income in 2019
NOL Offset in 2019 - Lessor or $5,000 or $6,000*80% = $4,800
Carry forward to 2020 = $5,000 - $4,800 = $200
