Tax Penalty - underpayment

[momo88]

This yr, I am filing as head of household since last yr, my spouse and I separated. When I am going through the filing process, it says I underpaid in taxes and there is a fee. 

It asked me about my 2023 filing status, tax liability (form 2210), 2023 AGI. Why? I updated my filing status when the separation was finalized via W2. Why would it ask me about 2023 when my filing status was different?

[ThomasM125]

Your late payment of tax is based in part on your tax liability from the previous year. If you pay in 100% of the amount of your tax liability from the previous year on a timely basis in the current year, you will not be penalized for a late payment of tax. TurboTax needs to know the information you mentioned to make that determination.