If you are receiving an email to fill out a tax form, this usually means the company you are working with is based in the United States and needs to collect information about your tax status for their own compliance.
If you have further questions on your specific eligibility/requirement for a tax form please contact the company paying you directly.
When selecting the link to fill out the tax form, you will see a "Tax Wizard" option that will guide you to the relevant form.
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