Tim and Sarah Lawrence are married and file a joint return. They have two dependent children, Sean and Debra, ages 12 and 16, respectively. Tim is self-employed as the sole proprietor of an unincorporated business, and Sarah is a corporate executive. Tim reports the following 2018 income and expenses from his business. Gross income $325,000 Business expenses 201,000 Records related to Sarah's employment provide the following information. Salary $145,000 Other pertinent 2015 information follows. Loss from sale of stock acquired on july 15, 2018, and sold on August 1 2018 S (2,200) Loss from sale of stock acquired on September 18, 2017 (cost of $5,000), and sold on October (1,200) 5, 2018 Wages paid to full-time domestic worker for housekeeping and child supervision 10,000 Interest income received 7,000 Total itemized deductions (not including any potential deductions above) 27,900 Federal income tax withheld 31,850 Estimated payments of Federal income tax 20,000