Form W-9: Request for Taxpayer Identification Number and Certification
Definition: Form W-9 is a one-page IRS document provided by payers (businesses, banks, landlords) to individuals, sole proprietors, or entities to collect your Taxpayer Identification Number (TIN)—Social Security Number (SSN), Employer Identification Number (EIN), or Individual Taxpayer Identification Number (ITIN)—and certify that you are not subject to backup withholding (28%) or FATCA reporting.
Why It Matters: Accurate W-9 submission prevents payers from withholding 28% of your payments and sending it to the IRS—common for freelancers, contractors, or landlords if TIN mismatches or prior underreporting exists. Errors trigger B Notices, CP2100 alerts, or lost income. If withheld funds have created cash-flow issues or IRS notices, Omni Tax Help reviews your W-9 history, corrects TIN mismatches with SSA/IRS, stops future withholding, and claims refunds for over-withheld amounts—restoring full payments and avoiding penalties.
Key Sections:
- Part I: TIN entry (SSN/EIN/ITIN).
- Part II: Certification (exempt from backup if no IRS notice).
- Exemptions: Codes for payees not subject to withholding.
What to Do Next:
- Complete with current name/address matching IRS records.
- Sign and date—electronic OK for most payers.
- Update if name/TIN changes (e.g., marriage, LLC formation).