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Division of Unemployment Insurance




Estimate your 2027 unemployment insurance tax rate with the UI Tax Calculator.


Starting November 1, 2026, the Delaware Division of Unemployment Insurance’s online Employer (OES) portal will not be available for payments as we upgrade our payment module. You can still file reports via the OES portal, but you’ll need to make payments via the lockbox until the upgrade is complete.

Payments can be sent to the UC8 Report and Payment Lockbox at:  
DOL UI Tax 
P.O. Box 5515   
Binghamton, NY 13902  

ECO has reestablished its in-house call center to better serve Delaware employers. During the initial onboarding period (approx. two weeks), employers may experience longer than usual wait times. We appreciate your patience and look forward to providing improved responsiveness in the weeks ahead. 

The technical issue affecting Training Tax assessments of some employer accounts has been resolved. We are actively reviewing and updating impacted accounts. Thank you for your patience while we complete this process

Our Mission

Minimize the impact unemployment has on the individual, their family, and community.

How can we help you?

Information Hotline

Unemployment Insurance (Statewide)

(302) 761-8446

One Stop logo

Report Hiring with our office using the Delaware Business One Stop. If you’ve newly started a business with employees or are about to hire employees, make sure you report hiring to avoid penalties.

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