W4 Witholding

Hello,

 

I am in the process of completing all of my tax information for 2023 (1099-INT, 1098, W-2). I filed married filing separately for the past two years with a "0" on W4 and in years 2021 and 2022 I have overpaid and received a federal tax refund of $750. For this year's taxes, after entering all of the information, it says that I owe $1,100 of federal taxes. My salary went from 94k in 2022 to base salary of 99k + investment income of 8k = 107k in 2023. I have always itemized my deductions. My spouse's base salary has been around $115k. Any reason why I have to payback $1,100? I'm wondering if maybe my employer hasn't taken enough taxes out or I'm not specifying the right amount of witholdings? I've used the witholdings calculator but am looking for proper guidance. Much appreciated!