• Internal Revenue Service forms download page
• Massachusetts Department of Revenue Online Forms Index
• Form I-9, Employment Eligibility Verification
• Form SS-4 Application for Employer Identification Number
Instructions for Form SS-4
You can also apply for an Employer Identification Number online
by clicking on this link
• Form W-4 Employee's Withholding Allowance Certificate
• Form W-9 Request for Taxpayer Identification Number and Certification