LO 14-3 14-4 9. Mr. and Mrs. Daku had the following income items. 14-5 Mr. Daku's salary $52,500 Mrs. Daku's Schedule C net profit Interest income 41,800 1,300 Mrs. Daku's self-employment tax was $5,906. Mrs. Daku's Schedule C net business profit is qualified business income under Section 199A. The couple had $8,070 itemized deductions and no children or other dependents. Compute their income tax on a joint return