Scott and Laura are married and will file a joint tax return. Scott has a sole proprietorship (not a specified services business) that generates qualified business income of $300,000. The proprietorship pays W2 wages of $40,000 and holds property with an unadjusted basis of $10,000. Laura is employed by a local school district. Their taxable income before the QBI deduction is $389,800 (this is also their modified taxable income).

a. Determine Scott and Lauras QBI deduction, taxable income, and tax liability for 2021.

b. After providing you with the original information in the problem, Scott finds out that he will be receiving a $6,000 bonus in December 2021 (increasing their taxable income before the QBI deduction by this amount). Redetermine Scott and Lauras QBI deduction, taxable income, and tax liability for 2021.

c. What is the marginal tax rate on Scotts bonus?