Olga is married and files a joint tax return with her husband. What amount of AMT exemption may she deduct under each of the following alternative circumstances? Exhibit 8-5. (Leave no answer blank. Enter zero if applicable.)

EXHIBIT 8-5 2021 AMT Exemptions

Filing Status	Exemption	Phase-Out Begins at This Level of AMTI	Phase-Out Complete for This Level of AMTI
Married filing jointly	$114,600	$1,047,200	$1,505,600
Married filing separately	57,300	523,600	752,800
Head of household and single	73,600	523,600	818,000

a. Her AMTI is $401,000.

Amount of AMT exemption:

b. Her AMTI is $1,084,400.

Amount of AMT exemption:

c. Her AMTI is $1,611,000.

Amount of AMT exemption: