W9 for Monthly Invoice Processing

For a W‑9 form to support Microsoft Advertising (Microsoft Ads) invoice payments, the appropriate document must be requested directly from Microsoft’s finance/billing team, as it is not provided through the standard invoice or reporting UI.

To obtain the W‑9 for use by the accounting team, contact Microsoft Advertising support/finance using the Microsoft Advertising Customer Support Portal or the general Microsoft Support contact options, and request the W‑9 for the Microsoft entity shown on the invoice (the “Bill-to” / “Sold-to” Microsoft entity). The tax and legal entity details used for IRS forms (such as 1099/1042-S) are managed centrally by Microsoft and provided through those official channels.

When contacting support, have the following ready so the correct W‑9 can be issued or shared:

• The Microsoft Advertising customer ID (member/network ID) shown on the invoice
• The Microsoft entity name and address from the invoice Bill-to/Sold-to section
• Any relevant contract or billing account information

References:

• Microsoft Invest - Payment
• Microsoft Monetize - Payments
• Microsoft Monetize - Understand your invoice
• Microsoft Invest - Understand your invoice
• Understand IRS tax forms issued by Microsoft
• Microsoft Invest - Getting paid
• Who do I contact in regards to requesting an invoice - Microsoft Q&A
• Have been billed multiple times on multiple charge cards for renewal - Microsoft Q&A
• Can I speak to someone? -- Billing issues - Microsoft Q&A
• Fraud Charges - Microsoft Q&A
• Services and Billing - Microsoft Q&A