Freelancer Tax Guide

How to Fill Out Form W-9 as a Freelancer or Single-Member LLC

The complete 2025 guide to filling out IRS Form W-9 correctly. Learn exactly what to put in each box, whether to use your SSN or EIN, and avoid the mistakes that trigger IRS backup withholding.

Quick Summary: W-9 in 60 Seconds
Line 1: Your legal name (as shown on your tax return)
Line 2: Business name (if different from Line 1)
Line 3: Check "Individual/sole proprietor or single-member LLC"
Lines 5-6: Your address
Part I: Your SSN or EIN
Part II: Sign and date

What Is Form W-9 and Why Do Clients Ask for It?

If you're a freelancer, independent contractor, or single-member LLC owner, you'll frequently be asked to fill out IRS Form W-9. This form—officially called the "Request for Taxpayer Identification Number and Certification"—allows your clients to collect the information they need to report payments to the IRS.

When a client pays you $600 or more during the tax year, they're required to send you (and the IRS) a Form 1099-NEC. The W-9 provides them with your name and taxpayer identification number (TIN) to complete that 1099.

Important: Don't Skip or Delay

If you don't provide a W-9 when requested, your client may be required to withhold 24% of your payments for "backup withholding" and send it to the IRS. Always provide your W-9 promptly to avoid this automatic withholding.

Freelancer vs. Single-Member LLC: Key Differences

Before diving into the form, let's clarify an important distinction. How you fill out your W-9 depends on your business structure:

Sole Proprietor / Freelancer

You operate as an individual without forming a separate legal entity.

  • Use your legal name on Line 1
  • Check "Individual/sole proprietor"
  • Use SSN or personal EIN
Single-Member LLC

You formed an LLC but you're the only owner (member).

  • Use your legal name on Line 1
  • LLC name on Line 2 (if different)
  • Check "Individual/sole proprietor or single-member LLC"

Why This Matters

A single-member LLC is considered a "disregarded entity" by the IRS for tax purposes. This means the IRS treats it as if it doesn't exist separately from you—your business income flows directly to your personal tax return. That's why you check "Individual/sole proprietor or single-member LLC" and use your name (not just your LLC name) on Line 1.

Step-by-Step: Filling Out Your W-9

1Line 1: Name

Enter your name exactly as it appears on your tax return. This is critical—a mismatch between your W-9 name and your tax records will trigger IRS notices.

Freelancer: "Jane M. Smith"

Single-Member LLC Owner: "Jane M. Smith" (your name, not your LLC name)

2Line 2: Business Name (Optional)

If you operate under a business name that's different from your legal name, enter it here. This includes your LLC name or any "Doing Business As" (DBA) name.

Freelancer with DBA: "Smith Creative Services"

Single-Member LLC: "Smith Creative LLC"

No business name? Leave blank

3Line 3: Federal Tax Classification

This is where many freelancers get confused. Here's exactly what to check:

✓ Check this box:

"Individual/sole proprietor or single-member LLC"

This applies to both freelancers operating as sole proprietors AND single-member LLCs that haven't elected corporate tax treatment. The vast majority of freelancers and single-member LLC owners will check this box.

Exception: If your single-member LLC has elected to be taxed as a C-Corp or S-Corp, you would check "Limited liability company" and enter C or S in the tax classification box. This is uncommon for most freelancers.

4Line 4: Exemptions (Usually Skip)

Most freelancers and single-member LLC owners can skip this line entirely. Exemption codes apply to specific situations like certain corporations or tax-exempt organizations. If you're unsure, leave it blank—it won't affect your form.

5Lines 5-6: Address

Enter your street address, city, state, and ZIP code. Use the address where you want to receive tax documents (typically your home or business address).

Line 5: 123 Freelancer Lane, Suite 100

Line 6: Austin, TX 78701

6Line 7: Account Number(s) (Optional)

This is only used if your client specifically requests it to track multiple accounts. Most freelancers leave this blank.

7Part I: Taxpayer Identification Number (TIN)

Enter either your Social Security Number (SSN) or Employer Identification Number (EIN). Here's how to decide which to use:

SituationUse This
Sole proprietor without employeesSSN (or EIN if you have one)
Single-member LLC (disregarded entity)Owner's SSN or EIN
Want to protect your SSN privacyGet an EIN (it's free!)

Privacy Tip

Many freelancers prefer using an EIN instead of their SSN for privacy. Your SSN appears on the W-9 you send to clients, and some may not handle it as securely as you'd like. You can apply for a free EIN at IRS.gov using Form SS-4.

8Part II: Certification (Sign & Date)

Sign and date the form. By signing, you're certifying that:

  • The TIN you provided is correct
  • You're not subject to backup withholding (unless you've been notified otherwise)
  • You're a U.S. citizen or resident alien
  • The FATCA code (if any) is correct

Skip the paperwork headache

Fill out your W-9 online. Takes about 2 minutes. Download the PDF immediately.

Fill Out W-9 Online

Common W-9 Mistakes to Avoid

Mistake #1: Using LLC Name Only on Line 1

For single-member LLCs, your legal name must appear on Line 1. Put your LLC name on Line 2. The IRS matches the TIN to the name on Line 1—using only your LLC name will cause a mismatch.

Mistake #2: Checking "Limited liability company" for a Standard SMLLC

If your single-member LLC hasn't elected corporate tax treatment, you should check "Individual/sole proprietor or single-member LLC"—NOT the LLC box. The LLC box is for multi-member LLCs or those with corporate elections.

Mistake #3: Name Doesn't Match Tax Records

Your name on the W-9 must exactly match your tax return. If you got married and changed your name but haven't updated it with the Social Security Administration, use your old name until you update SSA records.

Mistake #4: Forgetting to Sign

An unsigned W-9 is invalid. Don't forget to sign and date Part II. Electronic signatures are acceptable for most purposes.

After You Submit Your W-9

Once you've sent your W-9 to a client, here's what to expect:

Keep a Copy

Save a copy of every W-9 you submit. This helps if there are any disputes and makes it easy to send updated versions if your information changes.

Expect a 1099 at Year End

If the client pays you $600+ during the year, they'll send you a 1099-NEC by January 31st of the following year. Learn more about 1099 forms.

Create Paystubs for Your Records

Even as a freelancer, maintaining paystub records helps you track income, qualify for loans, and prepare for tax time.

Frequently Asked Questions

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