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Seller Guide · US Sellers

W-9 Form Guide for US-Based Sellers

If you select the United States as your country during seller registration, you'll see an additional step collecting W-9-style taxpayer information. Here's what each field means.

This step only appears for sellers registering from the United States. It mirrors the information on the IRS Form W-9 — a standard document US businesses use to collect taxpayer details from vendors and partners.

Field-by-field

Legal name

The name as it appears on your tax return — for a sole proprietor, this is your personal legal name; for an LLC or corporation, your registered business name.

Tax classification

Your business structure for US tax purposes: individual/sole proprietor, C corporation, S corporation, partnership, trust/estate, or LLC (and if LLC, which of the above it's taxed as). This should match what you filed with the IRS when you formed the entity.

TIN type — SSN or EIN

Your Taxpayer Identification Number is either a Social Security Number (common for sole proprietors operating under their own name) or an Employer Identification Number (common for LLCs, corporations and partnerships). Use whichever one is tied to the legal name you entered above.

Address

Your current mailing address — street, city, state and ZIP — matching the address on file with the IRS where possible.

Certification

A declaration, under penalty of perjury, that the TIN you provided is correct, that you are not subject to backup withholding, and that you are a US person. This is a legal certification, not a formality — it must be accurate.

This guide is informational only and is not tax or legal advice. If you're unsure which tax classification applies to your business, speak with an accountant before completing this step.

Ready to continue?

Have your TIN (SSN or EIN) and legal business name ready before this step.

Continue Registration