How to Fill Out Form W-9 as a Freelancer (Line by Line)
A new client just emailed you a PDF called Form W-9 and asked you to send it back before they can pay your first invoice. This is normal. Every U.S. business that pays a freelancer $2,000 or more in 2026 (raised from $600 by OBBBA) is generally required to collect one — many still collect for any payment to be safe. It is the very first tax document most freelancers ever fill out, and it is much simpler than it looks — one page, nine numbered fields, and a signature.
Below is a line-by-line walkthrough using the current IRS Form W-9 (Rev. March 2024, still in use through 2026). If you have your form open beside this article, you should be done in about five minutes.
What a W-9 actually does
The W-9 ("Request for Taxpayer Identification Number and Certification") tells your client three things:
- Your legal name and business name (so they know who they are paying).
- Your tax classification (so they know which IRS form to issue you).
- Your taxpayer identification number — TIN — which is either your Social Security Number or an Employer Identification Number.
Your client keeps the W-9 in their files. They do not send it to the IRS. They use the information on it to issue you a 1099-NEC the following January if they paid you $2,000 or more during 2026 (raised from $600 by OBBBA). That 1099-NEC does get reported to the IRS, which is how the IRS knows to expect that income on your return.
Who needs to fill one out
You should fill out a W-9 any time a U.S. business or nonprofit hires you as an independent contractor — not an employee. Common situations:
- A marketing agency hires you for a one-off design project.
- A law firm pays you as a freelance paralegal.
- A landlord pays you to manage their rental property.
- A platform like Upwork, Fiverr, or Substack onboards you as a payee.
- A coaching client wants to deduct your fee as a business expense.
You do not fill out a W-9 for personal customers (the family that hired you to design their wedding invitations does not need one) or for foreign clients (those use Form W-8BEN instead).
The 9 lines, explained
Line 1 — Name (as shown on your tax return)
Your legal name, exactly as it appears on your most recent 1040. If you filed jointly, this is still your name, not your spouse's. If you go by "Mike" but your tax return says "Michael R. Patel," write Michael R. Patel.
This line is required. Leaving it blank or using a stage name is the single most common cause of a W-9 being kicked back.
Line 2 — Business name / disregarded entity name
Only fill this in if it is different from Line 1. Examples:
- You are a sole proprietor doing business as "Patel Creative." Line 1 = Michael R. Patel. Line 2 = Patel Creative.
- You are a single-member LLC. Line 1 = Michael R. Patel. Line 2 = Patel Creative LLC.
- You have no DBA and no LLC. Leave Line 2 blank.
Line 3a — Federal tax classification
Check exactly one box. For most freelancers it is the first box: Individual / sole proprietor. Use this even if you have a single-member LLC that has not elected to be taxed as a corporation — the IRS treats single-member LLCs as "disregarded entities," meaning they are taxed as sole proprietors by default.
| Your situation | Box to check |
|---|---|
| Freelancing under your own name, no LLC | Individual/sole proprietor |
| Single-member LLC (default tax treatment) | Individual/sole proprietor |
| Single-member LLC that filed Form 2553 to be taxed as S-corp | S Corporation |
| Multi-member LLC (default) | Partnership |
| Incorporated as Inc. with S-corp election | S Corporation |
Leaving this blank is the second most common mistake. Without it, your client may withhold 24% of every payment as backup withholding.
Line 3b — Foreign partners (rare for freelancers)
Only check this if you are a partnership or trust with foreign owners. Almost every U.S. solo freelancer leaves it blank.
Line 4 — Exemptions
Leave both boxes blank. These exemption codes apply to corporations, retirement accounts, and government entities — not to individual freelancers.
Lines 5 & 6 — Address
The address where you want your year-end 1099-NEC mailed. A residential address is fine. If you move during the year, send the client an updated W-9 — do not assume they will track you down.
Line 7 — Account numbers (optional)
Almost always blank. Some banks and brokerages use this line to identify which of your accounts the W-9 covers. Most clients ignore it.
Part I — Taxpayer Identification Number (TIN)
This is the most important box. Enter either your SSN or your EIN, not both. Match the number to whatever name is on Line 1:
- If Line 1 is your personal name, the TIN should be your SSN (or EIN if you have one as a sole proprietor).
- If you are a single-member LLC, the IRS specifically wants your SSN here, not the LLC's EIN — even if you have one. (See "EIN vs SSN" below.)
- If you are an S-corp or partnership, use the entity's EIN.
Part II — Certification (signature)
Sign and date. Your signature certifies four things: the TIN is correct, you are not subject to backup withholding, you are a U.S. person, and (for FATCA) you are not subject to foreign reporting. If you have ever been notified by the IRS that you are subject to backup withholding because of underreported interest or dividends, you must cross out item 2 before signing — extremely rare for freelancers.
EIN vs SSN — which should you use?
If you have only an SSN, use it. End of story. But if you are a sole proprietor or single-member LLC and have applied for an EIN (it is free and takes 10 minutes at irs.gov), you have a choice — and there are real trade-offs.
| Use SSN | Use EIN | |
|---|---|---|
| Privacy | Client sees your SSN | Client never sees your SSN |
| Identity-theft risk | Higher — SSN sits in client AP files | Lower |
| Setup time | Already have it | 10 minutes online, free |
| 1099-NEC matching | Reliable | Reliable if Line 1 = your name |
| Required for | Default for sole prop | S-corp, partnership, hiring employees |
For privacy alone, getting an EIN is worth the 10 minutes. Once you have one, you can use it on every future W-9 and stop handing your SSN to strangers.
What your client does after you send it
- They file the W-9 in their accounts payable records. It is not sent to the IRS.
- They pay you normally — no tax withholding for U.S. persons with a valid TIN.
- If they paid you $2,000 or more during 2026 ($600 pre-OBBBA), by January 31 of the following year they issue you a Form 1099-NEC reporting the total. A copy goes to the IRS.
- You report that 1099-NEC income on Schedule C, pay self-employment tax, and (most likely) make quarterly estimated payments. Use the Quarterly1099 calculator to estimate what you will owe.
What if a client never asks for a W-9?
You still owe tax on every dollar you earned, with or without a 1099. Many small clients (especially individuals or new businesses) never send 1099s. The IRS does not care — it expects you to report all income on Schedule C regardless of paperwork.
What you should do:
- Track every payment in your own records (a spreadsheet is fine).
- Save 25-35% of each check for taxes — see how much to save.
- Make quarterly estimated payments using Form 1040-ES.
- Use a Freelance rate calculator when quoting new clients so taxes are baked into your rate.
Common mistakes (and how to avoid them)
- Leaving Line 3a blank. Triggers 24% backup withholding on every payment.
- Checking the wrong box on Line 3a. A common one: a single-member LLC owner checks "LLC" and writes "C" (or nothing) in the tax-classification field. The IRS default for SMLLCs is sole-prop unless you have actually filed Form 2553 or 8832. When in doubt, check "Individual/sole proprietor."
- Mismatched name and TIN. If Line 1 says your personal name but the TIN box has your LLC's EIN, the IRS matching system flags it. Either change Line 1 to the LLC name (and use the EIN) or keep your personal name and use your SSN.
- Putting both SSN and EIN. Pick one.
- Sending the W-9 by unencrypted email. Your TIN is sensitive. Use a secure portal, an encrypted PDF, or a service like DocuSign or HelloSign. At minimum, send it as a password-protected PDF with the password texted separately.
- Re-sending the same W-9 to every client without re-reading it. If you got an EIN, moved, or changed your business structure, your old W-9 is wrong. Update it.
- Signing the form when something on it is incorrect. Your signature is a legal certification under penalty of perjury. Fix the form first, then sign.
FAQs
Do I have to give a client my W-9? Yes, if they request it and they are paying you for business services. Refusing means they will withhold 24% of every payment and send it to the IRS as backup withholding. You eventually get it back, but you wait until you file your return.
Does a W-9 expire? No. The form itself does not expire, but you should send a fresh one any time your name, address, business structure, or TIN changes.
Can I refuse to give my SSN? You can — by getting an EIN first and using that instead. There is no legal way to receive 1099 income without giving the client some valid TIN.
What if my client lost my W-9 and asks again? Send a new one. There is no penalty for filling out multiple W-9s for the same client.
I am a U.S. citizen living abroad — do I still use a W-9? Yes, as long as you are a "U.S. person" for tax purposes. Non-citizens and non-residents use Form W-8BEN instead.