I live in Washington State but work in Oregon. How do I file state tax?

dordle asked: I live in Washington State but work in Oregon. How do I file a state tax return, what do I need and where do I get it. I am a single male, under 25 with no dependents.
In Washington State we do not file a state tax return so this is new to me.
Thank [...]

Oregonian visiting Washington State, what stores can they get tax exempts on?

Hcee asked: My boyfriend is visiting Washington State (he is from Oregon), we are wondering what stores he can get tax exempts in? I know Borders Books will do it, and I think Ikea does it too.

California resident. Moved to Washington State mid 2007, but still pay California tax, which tax form to fill?

wwwhbk asked: I am a California resident who moved to Washington State mid 2007, but still paying California state tax. I have not claimed Washington residency. What California state tax form do I need to fill 540 or a 540NR?

Business and Occupation Tax in Washington State?

Blues asked: Can someone please explain to me in detail what Washington State’s “Business and Occupation Tax” is all about? I am moving to Seattle in a couple of years and any clear information on this would be greatly appreciated.