Division of

For Suppliers

State of Delaware eSupplier Portal

The State of Delaware eSupplier Portal is a secure login site for new suppliers to register and existing suppliers to manage their information. The State does not accept IRS Form W-9, instead all suppliers are required to register through the eSupplier Portal.

Successful submission and approval of a new supplier registration enables the creation of a State of Delaware supplier record. The Taxpayer ID (SSN or EIN) and supplier name are submitted to the Internal Revenue Service for “matching.” If the Taxpayer ID and name do not match, the supplier record cannot be approved.

Existing suppliers who have not previously registered through the eSupplier Portal will need to obtain a user ID and password in order to submit changes to their State of Delaware supplier record.

Detailed instructions for submitting new registrations, obtaining user IDs and passwords, and submitting change requests are located on the FAQs / Contact Us page of the eSupplier Portal.

Please Note: The eSupplier Portal does not contain invoices, payment history, or payment details for payments made to suppliers.

If you have questions about completing this form or specific comments about a form that you have submitted, please contact the supplier maintenance team by phone at 302-672-5000 or by email at

Access the State of Delaware eSupplier Portal

IRS Form 1099 Information

The State of Delaware provides Internal Revenue Service Form 1099-MISC to all service providers for each tax year.

If you have misplaced or did not receive a Form 1099-MISC, copies are available by completing the form below.

If requesting duplicate 1099’s for multiple tax years, please complete a separate form for each tax year. There will be a $5.00 administrative fee for each tax year requested. You may combine the fees and submit a single check for the total amount due. Checks should be made payable to the State of Delaware. The duplicate 1099(s) will be mailed to the supplier’s mailing address listed on the form.

1099 Request Form

Sample Pay Advice

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