Form W-9 supplies a U.S. person’s taxpayer identification information and required certifications to a requester. It is not an invoice, tax payment, or annual income return. Match the name, taxpayer number, and federal tax classification correctly, review the certification, and deliver it securely to the legitimate requester rather than filing it with the IRS.
Who should use a W-9?
The IRS W-9 overview describes providing a correct TIN to a person who needs information-return reporting details. Requests can concern service payments and other financial transactions, not only freelance work.
Do not assume that citizenship, mailing address, and tax residency are the same thing. A foreign person generally needs the appropriate alternative documentation rather than an inaccurate U.S.-person certification. Check the official form's instructions if residency or entity status is uncertain.
How do the name and tax classification fit together?
Use the taxpayer name and number required by the official W-9 instructions. A trade name on a bank account may not be the taxpayer name that belongs on Line 1. A disregarded entity generally follows its owner's identity and classification rules.
For example, a single-member LLC's legal form alone does not tell you which federal classification box to select. Review whether it is disregarded or has a different tax treatment. Do not select partnership simply because several people help operate a business, or corporation merely because a business name looks formal.
What should you check before certifying?
- Line 1 taxpayer name and any separately entered business name.
- The correct federal classification and applicable additional entity detail.
- The taxpayer number belonging to the required name.
- Any exemption codes only where the instructions actually permit them.
- The certification concerning number accuracy, backup withholding, and U.S.-person status.
- Any special instruction requiring an item to be crossed out or a signature to be supplied.
Do not sign a certification that contradicts an IRS notice. Equally, do not claim an exemption to make an ordinary vendor-onboarding form appear simpler. Review what the certificate says, not just its identity fields.
How does the W-9 document builder work?
The reviewed W-9 builder uses the March 2024 revision rather than an annual year selector. It supports name and classification entries, the taxpayer number, optional requester details, and either printing for signature or applying a drawn signature after review.
The service does not obtain or verify a TIN and does not send the certificate to the requester or IRS. The completed PDF still needs the appropriate delivery step. Recheck the preview if you change an answer after signing, and follow the requester's legitimate signing requirements.
How should you send and update a W-9?
Confirm the requester and use its secure vendor or account process. A W-9 contains sensitive identity information, so an unexpected email request should not automatically trigger sending a full taxpayer number. Avoid public links, shared folders with broad access, and unnecessary extra recipients.
Keep a record of the version supplied. If the relevant name, taxpayer number, or classification changes, determine whether a replacement certificate is needed under the instructions and requester process. A requester uses the W-9 to prepare later reporting; receiving the certificate does not prove that any payment has occurred. Our secure document checklist offers related sharing practices.
Common questions
Does buying a W-9 register my business?
No. It prepares a certificate from entered details. It does not create an entity, assign an EIN, or verify tax classification.
Why does the form not say the current year?
W-9 is revision-based. Use the applicable official revision rather than changing the printed revision date to match the calendar year.
Do I attach W-9 to my individual return?
Normally you give it to the requester. It is not an annual income-tax return or proof of income.
Official blank forms and instructions are available from the IRS. The linked builder is an optional document-preparation service; use the applicable official instructions to complete any required signing, delivery, and filing.