Final answer:
Simon, as a single computer tech, needs to report all income earned while a resident of Oregon, plus any income earned from Oregon sources while he was still a resident of Washington. He must include all taxable income for the year on his Oregon tax return.
Step-by-step explanation:
Simon, as a single computer tech, was living in Washington and working in Oregon. When he moved to Oregon during the year, he must include in the Oregon column of his Oregon tax return: c. All income earned while a resident plus any income earned from Oregon sources while a non-resident. This means he needs to report all income earned while living in Oregon, as well as any income earned from Oregon sources while he was still a resident of Washington. The Oregon tax return requires reporting all taxable income for the year.