coocoo, don't think of it as more difficult than it actually is. Just remember your adjustments and preferences and ACE (75%). These are added to regular taxable income. The formula for calculating it is not really complex at all if you think about it logically and remember your adjustments and preferences.
Regular Taxable income
+Adjustments and preferences
=AMTI before ACE
+ACE adjustment
=AMTI before exemption
-Exemption
=AMTI
x 20% Tax Rate
=Tentative minimum tax
-Regular Tax
=AMT
Preferences and adjustments are as follows:
PILE (memorization tool):
Private Activity Bond interest
Installment Sales – must use accrual accounting instead
Long term contract income – must use % of completion method instead
Excess Depreciation on personal property becomes 150% DDB instead of 200%
ACE adjustment:
SLIM (memorization tool): (add back 75%) of these
Seventy percent DRD
Life Insurance Proceeds
Municipal Bond interest
FAR - Passed (82)
BEC - Passed (76)
AUD - Passed (89)
REG - Passed! (81)
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