if i do standard deduction can I skip doing AMT? it appears since i started taking standard deduction in 2019 b y my CPA and 2020 by turbotax AMT calculations were done

Not necessarily. The standard deduction is an adjustment item as well.

 

Some of the adjustment items are very common, while others only affect a small number of individual taxpayers. The items that are subject to adjustment  for AMT for individual taxpayers include:

• The limitation on overall itemized deductions.
• Miscellaneous itemized deductions subject to the 2% floor.
• Standard deduction and personal exemptions.
• Certain state, local and foreign taxes.
• Medical expenses.
• Certain interest (including home mortgage and investment interest).
• Incentive Stock Option (ISO) exercises
• Depreciation deduction.
• Mining exploration and development costs.
• Long-term contract expenses.
• Alternative tax net operating losses.
• Amortization deductions for pollution control facilities.
• Gain or loss on the disposition of property.
• Circulation expenses.
• Research and experimental expenses.

An individual taxpayer’s AMT adjustment items are added or subtracted in the calculation of AMTI on page 1 of Form 6251. These adjustments are discussed below.

 

AMT