DOSDOC_ftax@delaware.gov, DOR_CorpTax@delaware.gov
(302) 577-8200 - General Information
(302) 739-3073 option 3 - Franchise Tax
Delaware Division of Revenue
Website: https://revenue.delaware.gov/
DOSDOC_ftax@delaware.gov, DOR_CorpTax@delaware.gov
DOSDOC_ftax@delaware.gov, DOR_CorpTax@delaware.gov