How to find state tax liability on a 1040

[Mike9241]

you need to tell us what state or look on the form for a line that might say "income tax" or "tax liability" or even something else. 

[masonferg]

arizona state tax liability, 

[SForrestLO]

Your tax liability is any amount you owe a taxing authority, such as the IRS or the state where you live or work. Your 2019 AZ state Tax liability is reported on line 52 on Form 140. Your Federal Tax liability is reported on form 1040 line 16.