Sandy and John Ferguson got married eight years ago and have a seven-year-old daughter, Samantha. In 2023, Sandy worked as a computer technician at a local university earning a salary of $153,100, and John worked part time as a receptionist for a law firm, earning a salary of $30,100. Sandy also does some Web design work on the side and reported revenues of $5,100 and associated expenses of $1,300. The Fergusons received $1,020 in qualified dividends and a $255 refund of their state income taxes. The Fergusons always itemize their deductions, get the full benefit of deducting the entire amount of state income taxes paid, and their itemized deductions were well over the standard deduction amount last year.

The Fergusons reported making the following payments during the year:

• State income taxes of $4,675. Federal tax withholding of $21,000.
• Alimony payments to Sandy's former spouse of $10,550 (divorced 12/31/2014).
• Child support payments for Sandy's child with her former spouse of $4,210.
• $12,310 of real property taxes.
• John was reimbursed $655 for employee business expenses he incurred. He was required to provide documentation for the expenses to his employer.
• $3,600 to Kid Care day care center for Samanthas care while Sandy and John worked.
• $15,100 interest on their home mortgage ($400,000 acquisition debt).
• $3,165 interest on a $42,200 home-equity loan. They used the loan to pay for a family vacation and new car.
• $15,550 cash charitable contributions to qualified charities.
• Donation of used furniture to Goodwill. The furniture had a fair market value of $510 and cost $2,550.

a. What is the Fergusons' 2023 federal income taxes payable or refund, including any self-employment tax and AMT, if applicable?