Required information Problem 8-58 (L0 8-2) The following information applies to the questions displayed below] Corbett's AMTI is $633,000. What is his AMT exemption under the following alternative circumstances? Exhibit 8-5 Problem 8-58 Part-a a. He is married and files a joint return Amount of AMT exemption Required information Problem 8-58 (LOo 8-2) The following information applies to the questions displayed below] Corbett's AMTI is $633,000. What is his AMT exemption under the following alternative circumstances? Exhibit 8-5 Problem 8-58 Part-b b. He is married and files a separate return. Amount of AMT exemption Required information Problem 8-58 (LO 8-2) (The following information applies to the questions displayed below. Corbett's AMTI is $633,000. What is his AMT exemption under the following alternative circumstances? Exhibit 8-5 Problem 8-58 Part-c c. His filing status is single. Amount of AMT exemption EXHIBIT 8-5 2019 AMT Exemptions Phase-Out Complete Phase-Out Begins at This Level of AMTI Filing Status Exemption for This Level of AMTI Married filing jointly Married filing separately $111,700 $1,020,600 $1,467,400 55,850 510,300 733,700 Head of household and single 71,700 510,300 797,100