Marnie buys 500 shares of qualified small business stock in H.R. Pizza, Inc., on September 10, 2008 for $20,000. She sells the 500 shares for $120,000 on October 2, 2017. Marnie's other capital asset transactions consist of a $7,000 short-term capital loss, a $25,000 long-term capital gain and an $8,000 long-term capital loss carryover from 2016. Marnie is single, and her taxable income is $110,000 without considering her capital asset transactions. What is the effect of the sale of the stock on Marnie's 2017 income tax liability?