Form W-9: frequently asked questions
Grouped by what you are trying to work out. Each answer links to the page that covers it properly.
The basics
What is a W-9 form?
A one-page IRS form on which a U.S. person certifies their legal name and taxpayer identification number to a business that is going to pay them. The payer keeps it and uses it to prepare year-end information returns. Full explanation
Is Form W-9 free?
It is a public-domain U.S. government document, so nobody should charge you for a blank copy. Download it here
What is the current version?
Form W-9 (Rev. March 2024). A draft Rev. June 2026 version exists on IRS.gov but is watermarked DRAFT, DO NOT FILE. What changed
Do I send it to the IRS?
No, never. It goes to the requester and stays there. Detail
Does the W-9 withhold any tax?
No. A correct W-9 means you are paid gross. Only the absence of a valid one triggers 24% backup withholding.
How long does it take to complete?
About five minutes, assuming you know your own entity type and have your TIN to hand. The seven steps
Filling it in
Whose name goes on Line 1?
The name that matches the TIN you enter in Part I. For a sole proprietor or a disregarded single-member LLC, that is your own legal name, and the business name goes on Line 2. Detail
I have an LLC. Which Line 3a box?
One member and no elections: the first box, not the LLC box. Two or more members, or any election filed: the LLC box with C, S or P. Detail
Do I need to fill in Line 3b?
Almost certainly not. It applies only when a flow-through entity gives the form to another flow-through entity it owns part of, and foreign partners exist. The three-part test
What goes in Line 4?
For individuals and sole proprietors, nothing at all. Certain entities have an exempt payee code and, for accounts held outside the U.S., a FATCA code.
SSN or EIN?
Individuals use an SSN. Entities use an EIN. Sole proprietors may use either, though an EIN keeps your SSN out of client files. Detail
Can I use my LLC’s EIN?
Not if the LLC is a disregarded single-member LLC. The form prohibits it in bold. Use the owner’s TIN. Why
What if I have applied for a TIN but not received it?
Write “Applied For” in Part I and sign. A 60-day exemption applies to certain account types while you wait. Detail
Can I type my signature?
Generally not a valid signature. Sign by hand, use a real digital signature, or use the requester’s e-signature system. The rules
What if I make a mistake?
Complete a clean corrected form and ask the requester to replace the earlier one. Do not annotate the old version. How to correct it
Timing and validity
Does a W-9 expire?
There is no expiration date on it. The form stays valid until your name, entity type or TIN changes. The six voiding events
Do I need a new one each year?
No rule requires it. Some payers request one annually as an internal control, which is reasonable practice rather than a legal requirement.
How long does a payer keep it?
Generally at least four years, long enough to substantiate what it reported if the IRS asks. Detail
Do I need a separate W-9 for every client?
One per payer. Each keeps its own copy, and there is no central registry.
When should I send it?
Before the first payment, ideally. Waiting until January is how backup withholding starts.
Consequences
What happens if I do not provide one?
24% backup withholding on reportable payments, plus a possible $50 penalty per failure under IRC 6723. The income is reported to the IRS either way.
Can I get withheld money back?
It comes back to you. The amount appears on your 1099 as federal income tax withheld and is credited against what you owe on your return.
What is the penalty for a false W-9?
$500 under IRC 6682 for a false statement with no reasonable basis that results in no backup withholding, plus criminal exposure for willful falsification. Detail
Will a mistake trigger withholding immediately?
No. A mismatch surfaces when the IRS matches the filed 1099, producing a CP2100 notice to the payer and a B notice to you. Withholding starts if that goes uncorrected. The cycle
Who has to file one
Do I need one for a small job?
If the client asks, yes. The $2,000 threshold applies at year end across all payments, and backup withholding does not track the amount at all.
Are corporations exempt?
Do nonprofits complete one?
Yes, with exempt payee code 1. Being tax-exempt buys you no exemption from the paperwork. Detail
I am not a U.S. person. Which form?
Form W-8BEN if you are a foreign individual, W-8BEN-E for a foreign entity. Do not sign a W-9. The U.S. person test
My employer asked for a W-9. Is that right?
Employees complete a Form W-4. A W-9 request may be an error, or may indicate the role is being treated as contract work.
Does a landlord need to give one?
To a business tenant or a property manager, yes. To a private individual renting a home, no. Detail
Security
Is it safe to email a W-9?
A plain attachment is the weakest common option. Prefer a portal or encrypted transfer. The channels ranked
How do I avoid giving out my SSN?
Get a free EIN from the IRS and use it in Part I, keeping your own name on Line 1. Detail
Someone I do not know asked for a W-9. What do I do?
Treat it as phishing until you can verify a payment relationship, using a phone number you looked up yourself rather than one in the email. A completed W-9 is a name, an address and an SSN in one place, which is most of what an identity thief needs. How to verify
For payers
When should I collect W-9s?
At vendor onboarding, before the first payment, from every vendor. Timing and a template
What if a vendor refuses?
Document your solicitations, withhold 24%, deposit and report it on Form 945, and file the 1099 with the TIN blank. Never invent a number. The procedure
Can I use my own version of the form?
Yes, subject to the substitute form rules. Requirements
How do I check a TIN before filing?
The free IRS TIN Matching service, reached through e-Services. How it works
Did the reporting threshold change?
It went from $600 to $2,000 for payments made after December 31, 2025. Detail
Still stuck?
The line-by-line instructions cover every field on the form, and the worksheet will flag most errors before you sign. If what you need is a definition, the glossary has it. Most questions that survive both of those turn out to be about entity type, so it is worth checking the page for your own structure before you go looking further. Anything specific to your own circumstances belongs with a licensed tax professional. We can describe the rules; we cannot apply them to you.
General information, not tax advice. This page explains a federal tax form in plain English. It is not legal, tax, or accounting advice, and W9Form.org is not affiliated with the IRS. Verify everything against the official Form W-9 page on IRS.gov and speak to a licensed professional about your own situation. How we source and review these pages.