Electronic Filing of Form W-4

This document contains previously approved final regulations relating to Form W–4, Employee's Withholding Allowance Certificate. The final regulations authorize employers to establish electronic systems for use by employees in filing their Forms W–4. The regulations provide employers and employees with guidance necessary to comply with the law. The regulations affect employers that establish electronic systems and their employees.

The latest form for Electronic Filing of Form W-4 expires 2027-10-31 and can be found here.