Helen and John Wick filed jointly in Year 1. They divorced i…

Helen and John Wick filed jointly in Year 1. They divorced in Year 2. Late in Year 2, the IRS discovered that the Wicks underpaid their Year 1 taxes by $2,000. Both Helen and John worked in Year 1 and received equal income but John had $2,000 less tax withheld than Helen did. Who is legally liable for the tax underpayment?

Jeremiah and Eliza Danvers divorced in November of Year 1. J…

Jeremiah and Eliza Danvers divorced in November of Year 1. Jeremiah moved out and Eliza remained in their house with their 10-month-old daughter, Kara. Alex, Eliza’s mother, lived in the home and acted as Kara’s nanny for all of Year 1. Jeremiah provided 70 percent of Kara’s support, Alex provided 20 percent, and Eliza provided 10 percent. When the time came to file their tax returns for Year 1, Jeremiah, Eliza, and Alex each wanted to claim Kara as a dependent. Their respective AGIs for Year 1 were $50,000, $35,000, and $52,000. Who has priority to claim Kara as a dependent?