As mandated by the Idaho State Tax Commission, an employer must provide the Idaho Employee's Withholding Allowance Certificate, Form ID W-4, to each employee to in order to accurately calculate the employees' Idaho state income tax withholding.
As mandated by the State of Montana Department of Revenue, an employer must provide new employees with the Montana Employee's Withholding Allowance and Exemption Certificate, Form MW-4.
As mandated by the Oregon Department of Revenue, an employer must provide the Oregon Employee's Withholding Allowance Certificate, Form OR-W-4, to an employee to claim Oregon withholding allowances under certain circumstances.
As mandated by the Illinois Department of Revenue, covered employers must provide employees with the Illinois Employee's Withholding Allowance Certificate, Form IL-W-4.
This How To will help an employer obtain an employee's consent to claim a refund of overpaid FICA taxes due to an overpayment of wages and file a refund claim in compliance with IRS rules and procedures.