Engineering Firm Fees
Certificate of Authorization (COA) application/ Initial Registration: $200, once approved COA will be active through September 30.
COA Renewals: $150, Due annually on September 30
COA penalty for delinquent status: $75/ quarter (maximum $600 over 2-year eligible reinstatement period + renewal fee).
*Note: compliance with Delaware State Tax Laws is required and accomplished by contacting the Delaware Division of Revenue at (302) 577-8253.
Your firm will need a current business license or a letter of exemption. The Delaware Divison of Revenue uses this questionnaire to determine if you need a business license. If you answer “No” to all 4 questions, follow the instructions on the questionnaire to obtain a Letter of Exemption from the Division of Revenue. If you answer “Yes” to any of the questions, apply for a Delaware business license here.