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New 'Bill To' Information

Effective immediately all email or paper invoices must be submitted to Payment Services one of the following ways:

  • Paper Invoices - Mail to Caltech Payment Services, P.O. Box 3237, Scranton, PA 18505
  • Email Invoices - Email to
NOTE: 1) Attach only one invoice per email
            2) Email PDF invoices ONLY!
            3) Original mail is not required via postal mail

Outsourced Check Printing (Non-Payroll)

Beginning Tuesday, September 4, 2018, Caltech will outsource a majority of our check production for both Accounts Payable and Travel Reimbursement to our new bank, JPMorgan Chase. Routine non-payroll payments issued by check will be submitted to the bank for printing and mailing. These will be mailed within 24 hours of the check print date and will be postmarked from the JPMorgan’s location in Texas. Although we do not anticipate any significant delay in mailing time, you can receive more efficient payment by enrolling in Direct Deposit. Direct Deposit is the safest and quickest way to be paid. It is fast, simple and secure. To sign up for Direct Deposit, click here:

In-House Check Printing (Non-Payroll)

We will continue to print and manage certain payments in-house. These are as follows:

  • Wills Calls - Will call payments will be printed in-house for internal distribution
  • International Payees (except Canadian) - Due to certain restrictions of international payees, postage requirements, address formatting, etc., foreign payees (except Canadian) will be printed in-house and mailed from here
  • Payments with Attachments - Payments sent by FedEx, payment coupons, documents, letters, etc. to accompany check will be printed in-house
  • Manual, Emergency, and Urgent Payments

Billing & Payment Inquiries

Support small hero

Who should I contact if I have questions concerning billing or payments?

Most questions can be answered by calling the Procurement Services Hotline at (626) 395-8900 or via email at The Hotline is operational Monday through Friday from 8:00 a.m. to 5:00 p.m.

Davida Perez & Windy Amaya

(626) 395-8900

Supplier/Vendor Forms

  • Supplier Direct Deposit Authorization Form (PDF)

  • Foreign National Data Form (PDF)

  • Foreign National Visa Matrix (PDF)

  • IRS Form W-9 (PDF)

  • Non-Employee Traveler Form (PDF)

Protect Your Identity

Need Help Protecting Your Identity.          

Sign Up for Direct Deposit Payments Today!
Learn more

Vendor & Supplier Guides

  • Preparing & Submitting Invoices (PDF)

  • IRS & FTB Withholding Guidelines for Domestic Payees (PDF)

  • IRS & FTB Withholding Guidelines for Foreign Payees  (PDF)

  • General ITIN Information (PDF)