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A client asked for a form

The W-9,
in plain English.

A W-9 gives a requester your taxpayer name, classification and identification number. It isn’t a tax return or a bill.

For U.S. persons · Form W-9, revision March 2024 · Reviewed September 24, 2026

Open the official W-9 and instructions ↗

Use this beside the official form.

If you aren’t a U.S. person for tax purposes, ask the requester which alternative form applies. The instructions determine what belongs on each line for your classification.

A quick guide to the W-9 fields
1. Taxpayer nameUse the name required for your federal tax classification. For a disregarded entity, generally enter the owner’s name here.
2. Business nameEnter a different business or disregarded-entity name if applicable.
3a. Tax classificationAn individual sole proprietor generally selects “Individual/sole proprietor.” A disregarded LLC follows its owner’s classification; other LLCs follow their tax treatment.
3b and 4Read the instructions for flow-through entities and exemptions. Don’t assume they apply because you’re self-employed.
5 and 6. AddressUse the mailing address where you receive tax documents.
Part I. Taxpayer IDUse the TIN that matches Line 1. Sole proprietors may use their SSN or EIN; disregarded entities generally use the owner’s TIN.
Part II. CertificationRead the certification, follow its instructions, and sign and date when required.
Then send it securely to the requester.

Don’t submit it directly to the IRS or put your taxpayer ID in a public file. You don’t enter personal information on this website.

A client can ask for a W-9 before a reporting threshold is reached. Business income may be reportable even when no 1099 arrives. Read about tax forms and filing →