Can someone explain what else goes into the state and local income taxes line besides state taxes? The number populating is not equal to what my state tax liability is.

[als3gals]

This is for the state of Missouri.

[CatinaT1 · Accepted solution]

I assume you are referring to your federal Schedule A, the "State and local income taxes" line (Line 5a).  

This amount consists of:

• the amount of Missouri state tax taken out of your paychecks throughout 2025, listed in Box 17 of your Form(s) W-2.
• any local income taxes you had withheld, usually listed in Box 19 of your W-2.
• any estimated tax payments you made to the Missouri Department of Revenue during 2025. 
• any portion of your 2024 refund that you chose to apply toward your 2025 taxes.
• any payment you made when you filed your 2024 Missouri state return and paid that balance in 2025.