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Tax & Compliance
W-9 Form
Definition
A US tax form used to request a taxpayer identification number from contractors.
Overview
The W-9 collects a contractor's legal name, business name, address, and tax ID (SSN or EIN). This information is needed to file 1099 forms.
Example
Before paying a new contractor, the hiring company requests a completed W-9 form.
Best Practices
Collect W-9s from all US contractors before making payments. Store securely.
Common Mistakes to Avoid
Not collecting before payment
Accepting incomplete forms
Poor data security
Frequently Asked Questions
When should I request a W-9?
Before making the first payment to a contractor. Don't pay without it.