For tax year 2015, the phaseout of certain itemized deductions applies to higher income taxpayers. They will get a reduced tax benefit from certain deductions such as mortgage interest, state and local income tax, sales tax, charitable contributions, and unreimbursed employee job expenses.
The itemized deductions phaseout is based on your adjusted gross income (AGI). The amount of certain itemized deductions is reduced by 3% of AGI above the phaseout threshold amount shown in the table below for your filing status, up to a maximum 80% reduction.
NOTE: There are certain itemized deductions that are exempt from the phaseout. These include medical and dental expenses, investment interest, casualty and theft losses, and gambling losses.