Please see Form 6251 in this LINK. Some lines that could trigger AMT are:
- k) Disposition of property (difference between AMT and regular tax gain or loss)
- l) Depreciation on assets placed in service after 1986 (difference between regular tax and AMT) .
- m) Passive activities (difference between AMT and regular tax income or loss)
- n) Loss limitations (difference between AMT and regular tax income or loss) .
There are several other line items that may apply to your situation.
