What changed
Effective Jan. 15, 2026, Stanford University transitioned its Accounts Payable (AP) P.O. Box to a physical mailing address. The AP mailing address receives mailed physical paper invoices from suppliers and certain refund check payments.
To support this change, starting March 2, 2026:
- Stanford Purchase Orders (PO) will only display the AP email address for most efficient processing. When mailing invoices is required, suppliers will be directed to Fingate for the new mailing address in the Stanford Purchase Order’s PO Instructions section. SmartMart Catalog Suppliers and Amazon Business invoices will continue to be sent electronically to AP for payment processing.
- Expense Requests system (ERS) will show the new address on the warning message that displays when personal expenses exceed reimbursement amounts, requiring the individual to return funds to Stanford.
- All physical checks issued by Stanford will use the new address as the return address for any undeliverable checks.
Quick Reference: AP PO Box Address Update Details
| Previous Address | New Physical Address (effective January 15, 2026) |
|---|---|
| Stanford University Accounts Payable P.O. Box 20410 Stanford, CA 94309-0410 | Stanford University Mail sent to the old P.O. Box after Jan. 15, 2026 will be forwarded to the new address for twelve (12) months (through Jan. 15, 2027). |
Who is impacted and actions requested
| Impacted Groups | Current uses of current AP P.O. Box | Actions requested |
|---|---|---|
| Suppliers |
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Note: Continue submitting invoices directly to departments to upload when requested. |
| Stanford Employees or Students |
|
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Resources and Assistance
For more information about invoice submission and payment processes:
- For suppliers:
- Topic Overview: Purchase Order Invoice Processing (will be updated with the new mailing address on March 2, 2026)
- How to: Email or Mail an Invoice to Accounts Payable (will be updated with the new mailing address on March 2, 2026)
- Topic Overview: Do Business with Stanford
- For employees and students:
- How to: Return Personal Expenses to Travel Card (will be updated with the new mailing address on March 2, 2026)
- How to: Return Unused Advance Funds (will be updated with the new mailing address on March 2, 2026)
- For questions about this address change, please submit a support request.