A Form W-9 is generally used to confirm the tax identification number of a User and to establish the User is a U.S. taxpayer. Unlike the Form W-8 there is only one version that is applicable for both individuals and entities and the instructions that explain how to complete the Form are attached to the Form itself. Below is the link to the Form W-9:
Form W-9 (includes instructions and is used for individuals or entities)
To start processing on Stripe, a Form W-9 is not initially required but a tax identification number is. However, Stripe may request a Form W-9 in order to verify the tax identification number that was initially submitted. A Form W-9 might also be required to confirm a User’s tax residency.
This article is neither legal advice nor tax advice. We recommend that you speak to your lawyer or accounting firm with any questions or concerns around tax reporting.