tax documentiPhone · iOS 15+IRS compliant

How to Fax a W-9 Form from iPhone

The W-9 is one of the most commonly faxed tax forms in the US — and TigerFax makes sending it from your iPhone fast and secure.

Never fax a W-9 without a confidentiality cover page — it contains your Social Security Number or EIN

What you'll need

  • iPhone running iOS 15+
  • TigerFax app (free on the App Store)
  • Your W-9 Form (physical copy to scan, or a PDF/image file)
  • The recipient's fax number
  • A cover page with confidentiality notice (recommended)

How to Fax a W-9 Form from iPhone: Step-by-Step

  1. 1

    Download TigerFax

    Install TigerFax from the App Store on your iPhone. It's free to start — no credit card required.

    💡 Tip: TigerFax is optimized for iOS 15+ and works on all iPhones running iOS 15 or later.

  2. 2

    Scan your W-9 Form with iPhone

    Open TigerFax and tap the camera icon. Position your iPhone about 12 inches above the W-9 Form and let the auto-capture detect the edges. Use your iPhone's built-in camera to scan documents directly in TigerFax. Hold the phone steady about 12 inches above the document and let the auto-capture detect the edges.

  3. 3

    Upload your W-9 Form from iPhone

    Alternatively, tap the upload icon to import your W-9 Form from Files, iCloud Drive, or any connected cloud storage. Tap the upload icon to access Files, Photos, iCloud Drive, or any connected cloud storage. TigerFax supports PDF, JPG, PNG, HEIC, and DOCX formats.

    💡 Tip: PDF format preserves W-9 Form formatting best. If you have a digital copy, upload it instead of scanning for the clearest result.

  4. 4

    Add a confidentiality cover page

    Since W-9 Forms contain sensitive information protected under IRS, add a cover page with a confidentiality notice. TigerFax includes built-in cover page templates.

    💡 Tip: Never fax a W-9 without a confidentiality cover page — it contains your Social Security Number or EIN

  5. 5

    Enter the recipient's fax number

    Type the recipient's fax number in the To field. For international numbers, include the country code. TigerFax automatically formats the number.

  6. 6

    Review and send

    Preview your W-9 Form to verify all pages are included and legible. Tap Send. You'll receive a delivery confirmation when the fax is received.

Tips for Faxing W-9 Forms from iPhone

  • 1.Ensure all fields on the W-9 are filled in before scanning — blank fields may cause the recipient to request a resend
  • 2.Use a cover page marked 'Confidential' since W-9s contain your SSN or EIN
  • 3.Keep the fax confirmation as proof of delivery for your records

Scanning tip for iPhone

Use your iPhone's built-in camera to scan documents directly in TigerFax. Hold the phone steady about 12 inches above the document and let the auto-capture detect the edges.

Secure transmission

TigerFax transmits all faxes over encrypted connections. Your documents are never stored on third-party servers after transmission.

FAQ: Faxing W-9 Forms from iPhone

Yes. TigerFax works on iPhone running iOS 15+ and supports faxing W-9 Forms. You can scan a physical copy with the iPhone's camera or upload a PDF directly from the Files app.

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TigerFax

Send W-9 Securely

Works on iPhone · Free to start · No fax machine needed

Download on the App Store