Typical Delaware Personal Income Tax refunds may take up to 10-12 weeks to process More Info

Delaware.gov logo
Division of

Vendor Registration

The Delaware Software Provider Letter of Intent (LOI) is currently available. Delaware is using the FTA State Exchange System (SES) to distribute the LOI, XML schemas, Test Packets, MeF Handbooks, Forms, Instructions, and other files.


Modernized E-File & Paper Forms

For software vendors who do not have access to the DE FTA State Exchange System, please contact REV_MeF_Support@delaware.gov to request access. Here you will find the Delaware Software Provider Letter of Intent. In your request, you should include the email address of the SES authorized user who plans to access the LOI.

Delaware releases XML schemas and test packets in late October.

Delaware begins acceptance testing for all tax types mid November. Tax year production will begin in conjunction with the IRS tax year startup date.

For additional information with modernized e-file development and testing, please contact REV_Mef_support@delaware.gov.

Related Topics:  , , , ,