Download your forms here:

New Hire Forms:

Form I-9 
For Employment Eligibility Verification purpose, fill out by employee and verify by employer

Form W-4  
For employee to determinate Federal income tax withholding

Form DE 4  
For employee to determine California income tax withholding 

Other Forms:

Form W-9
For employer to request Taxpayer ID Number from contractor

IRS handy links:
Tax Calendar: Due Dates for 2017
​A-Z Index for Business