Tax Forms Requirement - Submission Instructions for W-9/W-8 Series

Sep 19, 2026

Tax compliance guidance for Celestica suppliers detailing mandatory IRS tax form submissions, including W-9 for American entities and W-8BEN/W-8IMY/W-8ECI (or equivalents) for non-US vendors. The document explains issuance timing for forms in relation to Celestica payment dates, requirements for signature and date, and the consequence of missing documentation: potential 30% withholding on gross payments. It also specifies delivery via email or PDF/scan, version currency, and directs readers to IRS and Celestica supplier resources for additional information.

LanguageEnglish

CategoryForms

FormatPDF

Pages1

AccessFree to download

Tax forms required

W-9 form overview

W-8BEN/W-8IMY/W-8ECI form overview

Submission process and deadlines

Version requirements and references

Tax Forms Requirement In compliance with the United States Internal Revenue Services’ (IRS’) requirement, Celestica requires our suppliers to complete and submit the W-9/W-8BEN/W-8IMY/W-8ECI tax form. Failure to provide these documents may result in Celestica withholding 30% of tax on the gross amount paid. The W-8/W-9 form should be issued to Celestica’s US entity. This should be issued on or before the date Celestica makes a payment to the suppliers. What is a W-9 tax form? A W-9 is a tax form required by the IRS to be filled out by all American entities who provide goods or services to other American entities. Celestica’s American entities require all our American suppliers to fill out a W-9 form. This certifies that vendors are exempt from backup withholding tax. It also helps Celestica determine whether payments to a vendor must be reported to the IRS. The form must be signed and dated. What is a W-8BEN/W-8IMY/W-8ECI tax form? A W-8BEN is a tax form required by the IRS to be filled out by non-US entities to establish their foreign status. It must be filled out by non-US vendors who provide goods or services to an American company. The purpose of this form is to prove that the non-US vendor is paying the proper US withholding taxes, as there may be tax reductions or a tax treaty between certain countries. Celestica’s American entities require all of our non-US suppliers to fill out a W-8BEN or equivalent form. The form must be signed and dated. Please provide a copy of W-8/W-9 tax form (in PDF or scan format) via email to Celestica upon request by Celestica personnel and cc [new-vendor-forms-cls@celestica.com](new-vendor-forms-cls@celestica.com). Suppliers are required to provide Celestica with the most current version of the form if any changes are made. Additional information on W-9/W-8BEN/W-8IMY/W-8ECI forms can be found on the IRS website [https://apps.irs.gov/app/picklist/list/formsPublications.html](https://apps.irs.gov/app/picklist/list/formsPublications.html) and Celestica’s website [https://www.celestica.com/suppliers](https://www.celestica.com/suppliers). Please contact your Celestica Purchasing representative should you have additional questions.

FAQs

Which tax forms must Celestica suppliers submit?

Suppliers must complete and submit the W-9/W-8BEN/W-8IMY/W-8ECI tax form as required by the IRS. Celestica issues the W-8/W-9 form to its US entity.

What happens if a supplier fails to provide the required tax documents?

Failure to provide the documents may result in Celestica withholding 30% of tax on the gross amount paid.

How and when should suppliers send the tax forms to Celestica?

Send a copy of the W-8/W-9 form (PDF or scan) via email to Celestica upon request by Celestica personnel and cc new-vendor-forms-cls@celestica.com. The form should be issued on or before the date Celestica makes a payment to the supplier.

Sep 19, 2026

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