Ms. NM, a single taxpayer, projects that she will incur about $8,000 of expenses qualifying as itemized deductions in both 2017 and 2018. Assuming that her standard deduction is $6,350 in both years, compute the effect on taxable income for each year if she can shift $2,500 of deductible expenses from 2017 and 2018.

by 2017 taxable income [increases by decreases 2018 taxable income