Answer:
$40,000
Step-by-step explanation:
The computation of QBI deduction for 2019 is given below:-
Taxable Income of Tammy and his spouse = Qualified Business Income (QBI) + Tammy’s spouse wages+ Interest Income
= $200,000 + $50,000 + $20,000
=$270,000
a) 20% of Qualified Business Income = 20 % × $200,000
= $40,000
b) 20% of Modified taxable income = 20 % × $270,000
= $54,000
Hence, the 2018 Qualified Business Income (QBI) deduction is "$40,000." Since 20 percent ($54,000) of Modified Taxable Income is less than 20 percent of QBI ($40,000).