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Official form guide
Form W-9: Request for Taxpayer Identification Number and Certification
Form W‑9 is the IRS Request for Taxpayer Identification Number and Certification. It is used by a payor to collect a payee’s correct TIN before reporting payments to the IRS.
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IRS Form W-9 - Request for Taxpayer Identification Number and Certification
Form W‑9 is the IRS Request for Taxpayer Identification Number and Certification. It is used by a payor to collect a payee’s correct TIN before reporting payments to the IRS.
Risk Radar
Scan points- 1A missing or incorrect signature invalidates the certification.
- 2Wrong Social Security Number or EIN
- 3Omitting the signature
- 4Using an outdated form version
- 5Leaving the certification box unchecked
Plain English
When a company or person will pay you and must report that money to the IRS, they ask you to fill out a W‑9. The form tells them your name, address, and Social Security Number or EIN so they can issue the proper tax forms later.
Submission Date
- Filing date: Provide the W‑9 before the first reportable payment; there is no filing deadline from the IRS, but payors often request it within 30 days of a new contract.
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
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What this form is for
- Use when a new client or vendor asks for your TIN before paying you.
- Do not use for foreign persons – they need Form W‑8.
- If you are changing your name or address, submit a new W‑9.
Form selector
Use this form or another form?
Foreign individual or entity
Certifies non‑U.S. status
✓ Verify residency before sending
Corporation receiving payments for services
Still required TIN
✓ Ensure EIN, not SSN
Payor needs to report payments to a disregarded entity
Owner’s TIN needed
✓ Confirm owner’s name matches EIN
Deadline or filing window
The IRS does not impose a filing deadline for W‑9. Payors typically set their own request window, often 30 days from contract start. If you miss the request, the payor may withhold 24 % of the payment until a valid form is received.
Checklist
What you need before filling it out
Name line
Government‑issued ID or business registration · Driver’s license, passport, or Articles of Incorporation
TIN field
Social Security card or EIN confirmation letter · SSN card or IRS EIN notice
Certification box
Payor’s backup‑withholding notice · Written notice from payor
Signature
Handwritten or e‑signature · Signed paper or digital signature certificate
Before you submit
- 1Form is the latest edition
- 2All required fields completed
- 3TIN matches official document
- 4Certification box checked appropriately
- 5Signature present and dated
- 6Address current and legible
- 7No extra pages or annotations
- 8PDF or paper scanned clearly
- 9Transmission method matches requester’s instructions
- 10Retain a copy for your records
How to file this form
- 1Download current W‑9 from IRS.gov
- 2Enter legal name exactly as on the SSN/EIN document
- 3Provide complete mailing address
- 4Enter correct TIN (SSN or EIN) without dashes
- 5Check the appropriate certification box
- 6Sign and date the form
- 7Return via the requester’s specified channel
Known limitations
- 1Form does not validate TIN automatically; errors are caught only by the payor’s backup‑withholding system
- 2No IRS acknowledgment is issued after submission
- 3Only U.S. persons or entities may use this form
- 4The form does not replace a Form 1099 filing requirement
Field map
Compact field-by-field guide
Line 1
1 items
Name as shown on your income tax return. Must match IRS records exactly. Do not leave blank.
Line 2
1 items
Business name or 'doing business as' name if different from Line 1. Leave blank if same.
Line 3
1 items
Check ONE: Individual/sole proprietor, C Corporation, S Corporation, Partnership, Trust/estate, LLC, or Other.
Line 4
1 items
Most individuals leave blank. Corporations check for backup withholding and FATCA exemption codes if applicable.
Line 5-6
1 items
Number, street, apt/suite, city, state, ZIP. Used for requester to send Form 1099.
Line 7
1 items
Optional. The name and address of the person/entity requesting this W-9.
Part I
1 items
Enter SSN (individuals) or EIN (businesses). Must be correct — IRS penalties for incorrect TIN.
Part II
2 items
By signing, you certify your TIN is correct and you are not subject to backup withholding.
Date of signature (MM/DD/YYYY).
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Fillable formOpen in Editor->Form W‑9 has no filing status with the IRS; it remains a private document between payor and payee until the payor files the related 1099.
What changed or needs a fresh check
- Edition date – verify the PDF shows the current year (e.g., 2024)
- Fee – none; the form is free on IRS.gov
- Mailing address – use the address the requester provides, not the IRS address
- Signature line – must be handwritten or a qualified electronic signature
- Secure transmission – prefer encrypted email or portal
Quick Facts
Downloads
After you file
- 1Keep a signed copy in your tax records
- 2Update the form if name, address, or TIN changes
- 3Monitor upcoming 1099s for correct information
- 4Respond promptly to any backup‑withholding notices
- 5Store the form securely to protect your TIN
Sources
- SRCIRS Form W‑9 official PDFprovides fields and instructions
- SRCIRS Instructions for Form W‑9explains certification and backup withholding
- SRCIRS Publication 15 (Employer's Tax Guide)mentions no filing deadline
- SRCIRS websiteconfirms no fee for the form
- SRCIRS guidance on electronic signaturesallows e‑signature if requester permits
- SRCNot found in provided source: exact payor‑specific submission address
Common confusion points
SSN vs. EIN
People with both may enter the wrong number
→ Verify which identifier the payor requests
Business name line
Some think it replaces legal name
→ Use legal name on first line, business name on second if different
Certification box
Users think it’s optional
→ Leaving it unchecked invalidates the form
Electronic signature
Unclear if allowed
→ Use a method the requester explicitly accepts
Foreign address
Form appears to allow it
→ Only U.S. persons may file; foreign entities need W‑8
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- Backup withholding notice issued, may need to file Form W‑9 again
Source transparency
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