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Ohioworking inMontana
Standard — file nonresident return if onsite
Montana
Work State Tax Rate
Up to 5.9% (2025), 5.65% (2026)
Withholding Starts
After 30 days
Law Last Updated
Jan 1, 2026
Employee Obligations (Which Returns YOU Must File)
If you physically work in Montana, file a nonresident Montana return (tax rate: Up to 5.9% (2025), 5.65% (2026)). Then file your Ohio return and claim the Ohio IT 1040 Schedule of Credits credit so you don't get taxed twice on the same income.
Employer Obligations (What Your Employer Must Withhold & Remit)
Register for withholding and unemployment. Unemployment applies to the first $43,000 of wages.
Related guides
More from Ohio · Cross-State Work
See all cross-state workpairs →Moving to Montana from elsewhere · Cross-State Work
Employee/Individual Tax Source: https://mtrevenue.gov/taxes/individual-income-tax/individual-filing-status/
Employer/Withholding Source: https://mtrevenue.gov/taxes/wage-withholding/withholding-payments/
Row last reviewed: Apr 17, 2026Home state credit form: Ohio IT 1040 Schedule of Credits
This is general information, not tax or legal advice. Laws change frequently. Always consult a licensed CPA or tax attorney for your specific situation. All information researched as of March 21, 2026.