Main IATA navigation

SIS for Suppliers & Air Operators

By facilitating the exchange of billing data information and digital invoices, Simplified Invoicing and Settlement (SIS) enables airlines and aviation business partners such as ground handlers, maintenance companies, manufacturers, airports and others, to engage in business through a single channel, contributing to a simpler and more efficient environment.​​ 
Introduction to SIS e-Invoicing ​(pdf)

Join Support Documents Glossary FAQs Links Media Presentations

Who can join SIS?

All suppliers, airlines and air operators not involved in interlining, and other entities that engage in business with airlines are eligible to become SIS participants under the SIS for Suppliers & Air Operators program. This membership covers only the Miscellaneous/Non-Transportation submission class. If your company wishes to send and/or receive invoices related to Passenger, Cargo or UATP transactions you must join SIS under the "SIS for Airlines & Intermodal" program. 

A sample of the "Standard Agreement for SIS e-Invoicing Services – Non Transportation" (pdf) is available for information purposes only, not for signature.  The costs of using SIS under this program are outlined in Attachment D (pdf) of the agreement.

Please refer to the user guide (pdf) on how to access the forms and submit an application using the IATA Customer Portal.

Documents required for joining

  • Joining Checklist (pdf)
  • Online application submitted via the IATA Customer Portal
  • Corporate Documents
    • Company Registration/Articles of Incorporation
    • Ownership structure including passport copies of all owners/shareholders
  • Bank Details (Optional) (pdf)

If you plan to submit billings to SIS via IS-XML files (pdf), prior testing and certification will have to be done. Guidance for testing and minimum requirements for certification are provided in the "Sign up and certification guide " (pdf).

To see which of your business partners are already using SIS, please download the SIS member list (xls). If you wish to encourage your business partners to accept electronic invoices, SIS offers a free membership under the "SIS for Invoice Receivers" program aimed at increasing adoption of electronic invoicing within the industry.

Connect to ICH for Settlement

The IATA Clearing House (ICH) provides settlement services for the air transport industry. It enables the world's airlines and industry suppliers to settle their Passenger, Cargo, Miscellaneous/Non-Transportation and UATP billings by ap​plying the principles of off-set and netting. The ICH also offers protection in the event of a payment default and/or bankruptcy.

For more information, please visit How to join ICH ​

Need Help?

Contact us

Our mission is to represent, lead and serve the airline industry

Additional information