Unless you live in one of the handful of states without a
state income tax, you'll probably also have to
file a state return. Depending on the state, the return could be
more complex than your federal return, since most states have their
own allowable credits and deductions.
When you do your taxes online, tax software
Online Tax Preparation can simplify data entry for state
returns by copying over the information you entered for your
federal return, so you only need to fill out forms unique to that
state. And, if you need to prepare more than one state return,
1040.com is unique in that one fee provides as many states as you
If you need more help, our Forms and Publications section
provides downloadable state forms and instructions. We also provide
a handy list of state tax sites. The
state tax site is especially helpful for tracking your state
refund, which can be done online for many states.