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2018 Vendor Registration

The tax year 2018 Delaware Software Provider Letter of Intent is currently available. For tax year 2018, Delaware is using the FTA State Exchange System to distribute the LOI, XML schemas, test packets and other files.


Modernized E-File & Paper Forms

For software vendors that worked with Delaware in 2017, please contact REV_MeF_Support@delaware.gov to request access to the 2018 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.

For software vendors that did not work with Delaware in 2017, please complete the Delaware Software Provider Registration and return it to REV_Mef_support@delaware.gov.

Currently, Delaware is planning to release our XML schemas and test packets in late October.

Delaware is expecting to begin acceptance testing for all tax types on or before 11/26/2018. Tax year 2018 production will begin in conjunction with the IRS tax year 2018 startup date.

  • For additional information on obtaining the Letter of Intent, business tax acceptance testing, additional MeF questions or other files associated with modernized e-file development, please contact REV_Mef_support@delaware.gov.

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