You are an Ohio resident for income tax purposes if you are domiciled in Ohio. Thus, under Ohio law, the terms "domiciled" and "resident" mean the same thing.TWO documents from different sources proving Ohio Street Address that are listed on the Acceptable Document List are required for proof of Ohio residency. TWO documents, from different sources, proving Ohio Street Address that are listed on the Acceptable Document List are required for proof of Ohio residency. All requested documents must be submitted for your application to be considered complete for processing and you must be enrolled.