Am I allowed to file jointly with my wife on our federal return and then separately for our state return (Ohio)?

[SherekaB]

deleted.

[maglib]

In Ohio your filing status must be the same as your federal income tax filing status for 2017. If you and your spouse filed a joint federal income tax return, you must file a joint Ohio income tax return. Even if you are both Ohio nonresidents, if you filed a joint federal income tax return, you must file a joint Ohio income tax return, but you may claim the nonresident credit (Ohio Schedule of Credits) for income neither earned nor received in Ohio. If you and your spouse filed separate federal income tax returns, you must file separate Ohio income tax.

See Page 14 of Ohio instructions.  https://www.tax.ohio.gov/portals/0/forms/ohio_individual/individual/2017/PIT_IT1040_Booklet.pdf