Itemized deductions include not only real estate tax,
-busyteam(浮生空白忙);
2017-12-29{240}(#11262225@0)
but also mortgage interest, investment fee, donation, unreimbursed employee expense, medical (exceeding 10% AGI), and w-2 state tax withholding. Therefore, usually most of the high income people used itemized, instead of standard deduction.