Publication 15 explains an employer's tax responsibilities for withholding, depositing, reporting, and paying employment taxes. Includes the tax tables needed to figure the taxes to withold from each employee. This publication explains your tax responsibilities as an employer.
About Publication 15-A, Employer's Supplemental Tax Guide (Supplement to Circular E, Employer's Tax Guide, Publication 15)
Publication 15-A supplements Circular E, and contains specialized and detailed employment tax information supplementing the basic information provided in Circular E (Pub. 15).
Information about Publication 15-B, Employer's Tax Guide to Fringe Benefits, including recent updates and related forms. Publication 15-B is for employers who provide fringe benefits to employees, and is used to determine whether the benefits are taxable.