Delaware

 

Last Updated June 17, 2026

Access Delaware payroll tax resources, employer registration links, withholding and unemployment tax information, and agency contacts from Payentry.

State Tax Guidelines

Delaware Division of Revenue – Withholding Tax

Agency Information

Add to existing company setup

Submit a request to your service team to add DE (withholding) to your company setup.  Please include the below with your request:

  • Withholding – Deposit Frequency and Account number.  If you’re unsure of your deposit frequency or account number, you can call the agency at 302-577-8205.

Register a new company

The business registration is combined for withholding and unemployment. Register online at https://onestop.delaware.gov/osbrlpublic/Home.jsp. Select Initial Registration and New License at the bottom of the page, and follow the prompts. Once the registration has been submitted, you will receive your account number,  deposit frequency, and rate within 10 days.

Delaware Department of Labor –Unemployment tax

Agency Information

Add to existing company setup

Submit a request to your service team to add DESUI (unemployment) to your company setup. Please include the below with your request:

  • Unemployment – Tax rate and Account number.  This can be found on a Tax Rate Notice or the Quarterly contribution report.  If you’re unsure of your tax rate or account number, you can call the agency at 302-761-8482.
  • Power of Attorney – POA is required, please obtain the prefilled form from your client service representative.

Register a new company

The business registration is combined for withholding and unemployment. Register online at https://onestop.delaware.gov/osbrlpublic/Home.jsp. Select Initial Registration and New License at the bottom of the page, and follow the prompts. Once the registration has been submitted, you will receive your account number,  deposit frequency, and rate within 10 days.

Power of Attorney Instructions

Power of Attorney upon request, please obtain the prefilled form from your client service representative.

Managing employees in multiple states?
Payentry helps businesses handle payroll processing, tax filing, new hire reporting, and compliance requirements across all 50 states. Learn how our payroll solutions can simplify multi-state payroll management.