There are many others that you may be able to include, which will reduce your total amount of taxable income. (irs.com)
Some are subject to the alternative minimum tax (AMT), which is a flat - rate charge on the adjusted amount of taxable income above a certain threshold. (turbotax.intuit.com)
The AMT is imposed on an adjusted amount of taxable income above a certain threshold or exemption level. (rismedia.com)