capital gain losses are netted against capital gains. net short-term capital gains are taxed as ordinary income.
also important is whether you have any other income.
assuming standard deduction single taxpayer $12,550
1) LTCG and/or qualified dividends $52,950 = no federal tax ($52,950-$12,550 = $40,400 taxable income)
2) STCG and/or other ordinary income $52,950 = federal tax about $4,700 on same taxable income of $40,400
3) LTCG and/or qualified dividends $52,950 and ordinary income of $10,000 = federal tax about $1,500
4) LTCG $32,950 STCG $20,000 tax about $750
5) LTCG $32,950, STCG $20,000 other ordinary income $10,000 = federal tax about $3,400
