State taxes asking for last year tax liability. Filed single last year and married this year. How do I figure this?

[LeeM]

I would add the tax liability for both yourself and your spouse and enter that number.

Your tax liability is the total amount of tax on your income.

Your federal tax liability amount is found on Form 1040 (line 63), Form 1040A (line 39), and Form 1040EZ (line 12).