If you income is low enough (usually less than $2350), you might not need to file.
As a part year resident, You must file an Oregon income tax return if Your gross income from all sources earned or received while you were an Oregon resident and your gross income from Oregon sources while you were a nonresident are more than what is defined in this chart.
View filing information, or download Form OR-40-P instructions
Reference: https://www.oregon.gov/dor/programs/individuals/pages/file-requirements.aspx
