Final answer:
Zack's taxable income for the year 2023 is calculated by subtracting his itemized deductions from his adjusted gross income, resulting in a taxable income of $58,500.
Step-by-step explanation:
Amy and Ethan, a married couple filing a joint return with a taxable income of $192,100 in 2023, can determine their tax liability using the applicable tax brackets and rates. Unfortunately, specific tax liability calculations require detailed information on credits, deductions, and other factors. Without this information, I cannot provide the exact tax liability rounded to the nearest dollar.
For Zack, a single taxpayer, his adjusted gross income (AGI) is calculated by subtracting deductions for AGI from his gross income. In this case, Zack's AGI is $74,000 - $5,000 = $69,000. To determine his taxable income, various factors such as itemized deductions, tax credits, and prepayments are considered. However, the specific taxable income value is not provided in the given information.