$12,000 to $24,000 30 million fewer people itemizing this year only 10% AARP 30 million fewer people itemizing this year only 10% of Americans will itemize on their 2018 return 30 million fewer people itemizing this year only 10% of Americans will itemize on their 2018 return 30 million fewer people itemizing this year 30 million fewer people itemizing this year Internal Revenue Service, 30% of the population down to 10%, statistically, likely roughly a third of taxpayers itemized deductions this AARP report 8 percent