- Taxes
- Glossary
- 6 min. Read
- Last Updated: 03/26/2026
What Is a W-9 Form? Guide for Employers and Contractors
Table of Contents
A W-9 form is an IRS tax document that businesses use to collect identification information. If your business works with freelancers or contract workers, the W-9 is where your process begins.
This guide explains what the W-9 is, who fills it out, how to complete it correctly, and what employers need to know to stay compliant with IRS reporting requirements.
What Is a W-9 Form?
IRS Form W-9 is used to request a payee's taxpayer identification number and confirm their tax status. Businesses use it to gather the information needed to file Form 1099 at year-end. The form itself is never submitted to the IRS. It stays on file with the requesting business.
A common point of confusion: W-9s are not for employees. Employees complete a W-4 when they're hired, which tells you how much federal income tax to withhold. The W-9 is strictly for nonemployee payees such as contractors, freelancers, vendors, and similar relationships.
The W-9 and Form 1099 work in tandem. The W-9 collects the identifying information while the 1099 uses that information to report what was paid.
Who Needs To Fill Out a W-9?
Anyone receiving payment from a business who isn't an employee may need to submit a W-9. This includes:
- Independent contractors and freelancers
- Vendors and service providers
- Landlords receiving rental payments from businesses
- Individuals receiving interest, dividends, or royalty payments
The form also applies across a range of business structures. Here's how it works for each:
| Business Structure Type | |
|---|---|
| Sole Proprietors | Line 1: Legal Name Line 2: Business Name (If Applicable) Your Social Security Number (SSN) is typically used as the TIN. |
| Single-Member LLCs | Line 1: Legal Name Line 2: LLC Name (If Applicable) Use your SSN unless you've chosen corporate tax treatment. |
| Multi-Member LLCs | Treated as partnerships by default. Line 2: LLC Name Use the Employer Identification Number (EIN). |
| Partnerships | Line 2: Partnership Name Line 3: Select 'Partnership' as the federal tax classification. Use the EIN. |
| S Corps and C Corps | Line 2: Corporations Name Line 3: Select the appropriate corporate tax classification. Use the EIN. Most corporations are exempt from 1099 reporting requirements, though exceptions apply. |
How To Fill Out Form W-9
Completing a W-9 is straightforward. Here's what each section requires:
| W-9 Sections | |
|---|---|
| Line 1 – Name | Enter the legal name that matches your tax return. For individuals, this is your full legal name. |
| Line 2 – Business Name | Enter a DBA or business name here if different from Line 1. Leave blank if you use only your legal name. |
| Line 3 – Federal Tax Classification | Check the box that best describes your business structure (individual, LLC, corporation, partnership, etc.). |
| Line 4 – Exemptions | Most individuals leave this blank. Exempt payees (certain corporations) enter the applicable code here. |
| Lines 5-6 – Address | Provide the mailing address where the requester should send correspondence. |
| Part I – TIN | Enter either your SSN (individuals) or EIN (businesses). Only one field should be completed. |
| Part II – Certification | Sign and date the form, certifying that the information provided is accurate and that you're not subject to backup withholding. |
Common Mistakes to Avoid
When filling out a Form W-4, be sure to avoid these common errors.
- Using a nickname or DBA on Line 1 instead of your legal name
- Mismatching the TIN and the name (this can trigger backup withholding)
- Leaving the tax classification blank
- Using an SSN where an EIN is expected, or vice versa
W-9 Requirements for Employers
As the party requesting the W-9, employers carry specific compliance obligations.
When To Request a W-9
Request a W-9 before making any payment to a contractor who might receive $2,000 or more in a calendar year. Waiting until year-end creates unnecessary risk and if a contractor is unresponsive or unavailable, you may be unable to file an accurate 1099.
The $2,000 Threshold and 1099-NEC
If you pay a non-employee contractor $2,000 or more in a calendar year, you're required to file Form 1099-NEC reporting that amount. Note that this threshold increased from $600 to $2,000 effective 2026 as a result of the One Big Beautiful Bill Act (OBBBA). The W-9 provides the information needed to do this accurately. The deadline for furnishing 1099-NEC forms to recipients and filing with the IRS is January 31 of the following year.
Backup Withholding
If a contractor fails to provide a W-9, provides incorrect information, or is notified by the IRS that they're subject to backup withholding, you must withhold 24% of payments and remit that amount to the IRS. This is both a compliance requirement and a strong incentive to collect W-9s upfront.
Record Retention
The IRS recommends keeping W-9 forms for at least four years after the date of the associated tax return. Some advisors suggest retaining them indefinitely for contractors with whom you have an ongoing relationship, as the information is needed for each annual 1099 filing.
Contractor vs. Employee Classification
Before collecting a W-9, verify that the individual is genuinely an independent contractor, not a misclassified employee. Worker misclassification carries significant penalties, including back taxes, unpaid benefits, and fines. The IRS uses a multi-factor test to evaluate the nature of the working relationship.
Handling Missing or Refused W-9s
If a contractor refuses to complete a W-9, inform them that you're required by law to withhold 24% of all payments without it. Document your request in writing. In most cases, backup withholding motivates compliance.
How Paychex Can Help
Managing contractor documentation, 1099 filings, and backup withholding calculations adds up quickly, especially without a dedicated payroll team. With Paychex, you can put that time back into your business. Get compliance deadlines met automatically, access organized payroll records whenever you need them, and pay any number of contractors with confidence.
W-9 FAQs
-
Where Can Employers Get a W-9 Form?
Where Can Employers Get a W-9 Form?
The current version of Form W-9 is available for download directly from the IRS website at irs.gov. Employers should always use the most current version, as outdated forms may not reflect current IRS requirements.
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Do Employers Need To Submit a W-9 to the IRS?
Do Employers Need To Submit a W-9 to the IRS?
No. The W-9 is exchanged only between the contractor and the requesting business — it is not filed with the IRS. Employers use the information collected on the W-9 to complete Form 1099, which is what gets filed with the IRS at year-end.
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What’s the Difference Between a W-9 and a W-4?
What’s the Difference Between a W-9 and a W-4?
A W-4 is completed by employees to set federal income tax withholding from their paychecks. A W-9 is completed by non-employees — contractors and vendors — to provide their taxpayer identification number for 1099 reporting purposes. Using the wrong form for the wrong worker classification is a common compliance mistake employers should watch for.
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What Should Employers Do if a Contractor Refuses To Provide a W-9?
What Should Employers Do if a Contractor Refuses To Provide a W-9?
Employers are required to apply backup withholding at 24% to all payments made to that contractor. The refusal should be documented in writing, and the contractor should be informed of the withholding requirement. If the contractor remains unresponsive, a tax advisor can help clarify reporting obligations.
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How Long Should Employers Retain W-9 Forms?
How Long Should Employers Retain W-9 Forms?
At minimum, W-9 forms should be retained for four years from the date the related tax return was filed. For ongoing contractor relationships, many businesses choose to keep them longer as a best practice.
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Can W-9 Forms Be Collected Electronically?
Can W-9 Forms Be Collected Electronically?
Yes. The IRS permits electronic W-9 signatures and submission, provided the process meets specific authentication and security requirements. Many HR and payroll platforms support electronic W-9 collection, which can streamline the onboarding process for contractors and vendors.
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What Is Backup Withholding and When Does It Apply?
What Is Backup Withholding and When Does It Apply?
Backup withholding requires employers to withhold 24% from a contractor's payment when the contractor fails to provide a valid TIN, provides incorrect information, or is flagged by the IRS. The withheld amount must be remitted to the IRS. Employers should have a process in place to identify when backup withholding applies and ensure it's handled correctly before payments are issued.
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