80K income less 24K standard deduction = 56K taxable income. The 15% capital gain threshold is $78,950.
This means $22,950 (78,950 - 56,000) of the 60K gain will be taxed at 0%.
(60,000 - 22,950) x 15% = $5,558 will be your tax on the gain on the sale.
Yes, increasing your 401k contribution would reduce that.
