Idaho Tax Residency: Income, Property & Sales Tax Guide
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Track Idaho tax residency
Understand Idaho state taxes, residency requirements, and learn how to track your days for tax purposes
Overview
Idaho residency requirements and taxation
Domicile Test for Idaho State Income Tax
Idaho uses the concept of domicile as the primary method for determining residency status for Idaho state income tax purposes. Your domicile is considered your true, fixed, permanent home. Idaho defines a resident as an individual domiciled in the state for the entire tax year. Factors indicating domicile include your principal residence, voter registration, car registration (which affects car sales tax in Idaho), and significant family ties. You may be an Idaho resident for tax purposes even if temporarily living elsewhere. Understanding your residency status is crucial for properly filing your Idaho state taxes.
183-Day Rule and Idaho Taxation
In addition to the domicile test, Idaho applies a 183-day rule for determining residency. You're considered a resident for Idaho income tax purposes if you maintain a place of abode in Idaho and spend more than 183 days in the state during the tax year. This rule can apply even if your domicile is elsewhere. It's important to keep accurate records of your time in Idaho, especially if you have homes in multiple states. This residency status affects various aspects of Idaho taxation, including income tax, property tax in Idaho, and potentially Idaho sales tax on major purchases.
Part-Year Residency and Income Tax for Idaho
Idaho recognizes part-year residency for individuals moving into or out of the state during the tax year. If you become an Idaho resident or give up your Idaho residency, you'll need to file a part-year resident return. This return reports all income earned while an Idaho resident, plus any Idaho-source income earned as a non-resident. Understanding your exact move date is crucial for accurate filing of Idaho state income tax. Part-year residents should be aware of how their status affects various Idaho taxes, including property tax and potential prorated income tax liability.
Special Considerations
Idaho has special rules for military personnel regarding taxes. If you're an Idaho resident on active duty stationed outside Idaho, you're still considered an Idaho resident for tax purposes. However, non-resident military members stationed in Idaho aren't considered Idaho residents. Military pay isn't taxable by Idaho for non-residents, but any non-military Idaho-source income would be subject to Idaho state taxes. Additionally, military personnel should be aware of how their status might affect Idaho property tax on any real estate they own in the state.
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