Which form allows for the reporting of state unemployment wages?

The form that allows for the reporting of state unemployment wages is the 941. This form, officially known as the "Employer's Quarterly Federal Tax Return," is used by employers to report income taxes withheld from employee wages and the employer's share of social security and Medicare taxes. It also captures the status of any deductions related to unemployment insurance at the state level.

State unemployment wages must be reported periodically, especially since different states may have varying requirements about the frequency and details needed for accurate reporting. The 941 captures the essential data for federal tax obligations while also encompassing the information relevant to state unemployment contributions.

The other forms listed perform different functions. Form 940 is used to report the annual Federal Unemployment Tax Act (FUTA) tax, Form 668-D is a notice of federal lien that does not relate to payroll taxes, and Form W-9 is used to request a taxpayer's identification number and certification rather than report wages. Each of these is important for different aspects of tax reporting and compliance, but when specifically discussing the reporting of state unemployment wages, the 941 is the appropriate form.