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The starting point for the Ohio individual income tax return is your properly computed federal adjusted gross income that is reported on your federal income tax return for the same year. If you and your spouse file a joint return for Federal then you are required to file an Ohio joint return providing you are working for the Air Force and not a member of the military in the Air Force.
The following is from the Ohio instructions for taxpayers:
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 (Schedule D) 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 returns.
The above means that your husband's income can be shown on the Schedule D for Ohio to exclude it from tax.
If you and/or your spouse are not residents of Ohio and your fi ling status for federal income tax purposes is married fi ling jointly, then you must show the same adjusted
gross income as on your IRS income tax return. You must show this amount even if you or your spouse did not earn or receive any income in Ohio.
Here is a link to the Ohio Instructions if you would like to read them yourself;
The instructions for Schedule D to use for the credit is included.
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