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Idaho Income Tax Withholding and AdministrationGeneral Withholding Requirement: Idaho income tax must be withheld from all wages paid to resident and nonresident employees for services performed within the state. Idaho withholding is not required from residents who work outside the state. Employee Withholding Exemption Forms: Idaho does not have a state withholding exemption certificate. However, Federal Form W-4, which must be completed by each employee to determine the appropriate level of federal income tax to withhold from earnings, also should be used for state withholding purposes. Reciprocal Agreements: None. Administration: Idaho State Tax Commission Local Tax Jurisdictions: None |