The following changes to the AMT went into effect for 2009:
AMT exemption amount increased. The AMT exemption amount has increased to $46,700 ($70,950 if married filing jointly or qualifying widow(er); $35,475 if married filing separately).
AMT exemption amount for a child increased. The AMT exemption amount for a child whose unearned income is taxed at the parent’s tax rate has increased to $6,700.
Qualified motor vehicle tax allowed against AMT. If you claim a regular tax deduction for any state or local sales or excise tax on the purchase of a new motor vehicle, that tax is also allowed as a deduction for the AMT.
Tax-exempt interest on specified private activity bonds issued in 2009 or 2010 exempt from AMT. Tax-exempt interest on specified private activity bonds issued in 2009 or 2010 is not an item of tax preference and therefore is not subject to the AMT. A refunding bond is treated as issued on the date of the issuance of the refunded bond (or, in the case of a series of refundings, the original bond). However, tax-exempt interest on a specified private activity bond issued in 2009 or 2010 to currently refund a private activity bond issued after 2003 and before 2009 is not an item of tax preference.
Alternative tax net operating loss deduction (ATNOLD). The 90% limit on the ATNOLD does not apply to the portion of an ATNOLD attributable to any 2008 or 2009 loss you elected to carry back more than 2 years under section 172(b)(1)(H) of the Internal Revenue Code