Ohio Rev. Code § 3305.08
Any payment, benefit, or other right accruing to any electing employee under a contract entered into for purposes of an alternative retirement plan and all moneys, investments, and income of those contracts are exempt from any state tax, except the tax imposed by section 5747.02 of the Revised Code, are exempt from any county, municipal, or other local tax, except income taxes imposed pursuant to section 5748.02, 5748.08, or 5748.09 of the Revised Code, and, except as provided in sections 3105.171, 3105.65, 3115.501, 3119.80, 3119.81, 3121.02, 3121.03, 3123.06, 3305.09, and 3305.12 of the Revised Code, shall not be subject to execution, garnishment, attachment, the operation of bankruptcy or the insolvency law, or other process of law, and shall be unassignable except as specifically provided in this section and sections 3105.171, 3105.65, 3119.80, 3119.81, 3121.02, 3121.03, 3115.501, and 3123.06 of the Revised Code or in any contract the electing employee has entered into for purposes of an alternative retirement plan.
R.C. § 3305.08