What payroll deductions are employers required to withhold?

Payroll Tax Deductions Required for Employers in Idaho

In Idaho, employers must withhold specific payroll taxes from employee wages to comply with federal and state regulations. Understanding these deductions is essential for accurate payroll processing and maintaining compliance.

Mandatory Payroll Deductions

• Federal Income Tax: Employers are required to withhold federal income tax based on the employee’s Form W-4 and IRS tax tables.
• Social Security Tax: Withhold 6.2% of wages up to the annual wage base limit for Social Security.
• Medicare Tax: Withhold 1.45% of all wages for Medicare tax. Additional Medicare tax of 0.9% applies to wages over $200,000 but only the employer’s portion is withheld by the employee.
• Idaho State Income Tax: Employers must withhold Idaho state income tax according to the Idaho withholding tables and the employee’s Form ID W-4.
• State Unemployment Insurance (SUI): While employers pay SUI taxes, Idaho does not require employee withholding for unemployment insurance.

Additional Operational Considerations

• Employee Classification: Ensure proper classification of employees versus independent contractors to apply correct withholding.
• Recordkeeping: Maintain accurate records of withheld amounts for federal and state reporting and audits.
• Reporting Requirements: Submit withheld taxes to the IRS and Idaho State Tax Commission by required deadlines to avoid penalties.
• Payroll Automation: Utilize payroll software that integrates federal and Idaho tax tables to automate withholding calculations and filings.

As of 2026, always verify withholding rates and requirements periodically, as tax laws and tables may change.