With the new Act taxpayers will receive minor relief from AMT .  The effect of the lower top income tax rates, the adjustments for inflation of the lower income tax rates, and no adjustments for inflation to the AMT Exemption will likely cause many more taxpayers will likely  to be subject to AMT in future years.

The AMT exemption amounts and rate brackets have not been indexed for inflation since they were established with the Tax Reform Act of 1986

The AMT exemption is increased by $4,000 for married taxpayers filing jointly and $2,000 for single taxpayers, but only for tax years 2001 - 2004. This increase is set to lapse in 2005.  This short-term solution for AMT will force congress to re-address AMT in a subsequent tax bill.