Why do I owe so much state taxes

[ShawnaD]

Without knowing your exact tax situation, it's hard to determine why you owe taxes to your State this year. The most likely reason is that you just didn't have enough State Taxes withheld from your paycheck(s), and/or you didn't have any deductions or credits to offset your income. This leaves more income to be taxed resulting in a lower refund or the need to pay additional taxes with your return.

One thing you can do to help understand why there is a difference, you can compare last year's state return with this year's state return line by line to see what is different.  You can also compare your W2's from both years to see if there are any major differences.