Ohio Rev. Code § 5747.054
In addition to all other credits allowed by this chapter, a credit shall be allowed against a taxpayer's aggregate tax liability under section 5747.02 of the Revised Code for taxpayers with modified adjusted gross income of less than forty thousand dollars. The amount of the credit shall equal twenty-five per cent of the federal dependent care credit for which the taxpayer is eligible for the taxable year under section 21 of the Internal Revenue Code, 26 U.S.C.A. 21; except that the amount of the credit for a taxpayer with modified adjusted gross income of less than twenty thousand dollars shall equal the federal credit for which the taxpayer is eligible, in any case without regard to any limitation imposed by section 26 of the Internal Revenue Code, 26 U.S.C.A. 26.
The credit allowed by this section shall be claimed in the order required under section 5747.98 of the Revised Code.
R.C. § 5747.054