Moving across state lines

[Sean Ade]

Hi! 

I am currently living in Portland OR and was wondering how my income tax would be effected if I moved over the bridge to Vancouver WA, but mainly worked in OR. A majority of my work is done in Oregon but I also cover Southern WA and Alaska so I do travel out of state a bit and my company HQ is in Philly. I don't know if most of my work being done in OR makes it so I still get hit with OR income tax. 

Thanks!