A. AMT exemptions for 2015 increase to $83,400 for couples and $53,600 for both singles and heads of household.
The phaseout zones for the exemptions start at higher income levels as well - above $158,900 for couples and $119,200 for single filers and household heads.
Also, the 28% AMT tax bracket kicks in a little later in 2015 - above $185,400 of alternative minimum taxable income.