Live in Oregon and work in Washington: Do I need to file Oregon state taxes?
Yes. Here's the answer to this question from oregon.gov: 3. I am moving into Oregon. What income will be taxed by Oregon? As an Oregon resident, you are taxed on ALL income regardless of the   source of the income. This includes, but is not limited to: You may need to pay estimated taxes if you don't have Oregon   withholding on your income.