DELAWARE Tax Forms and Instructions
Below are the relevant links for DE State Tax information.
Deleware State Mandate Tax preparers that are approved by the IRS and have received an EFIN, will be able to electronically file with the State of Delaware. If you become disengaged with the IRS E-File Program, your filing privileges with the State of Delaware will reflect the same status.



DELAWARE Tax Forms and Instructions Information
Online Credit Card Payments
  • Offical Payments
    Or call 1-800-2PAY-TAX (Offical payments charges a nominal fee for this service)(Use Jurisdiction Code 2000 for Individual and Jurisdiction Code 2006 for Business Taxes)
Mailing Addresses
  • Return Mailing Address:
    State of Delaware Division of Revenue
    PO Box 8765
    Wilmington DE 19899-8765

  • Return Mailing Address without Refund:
    State of Delaware Division of Revenue
    PO Box 508
    Wilmington DE 19899-0508

  • Estimates Mailing Address:
    State of Delaware Division of Revenue
    PO Box 8735
    Wilmington DE 19899-8735

  • Amended Return Mailing Address:
    Delaware Division of Revenue
    PO Box 8765
    Wilmington DE 19899-8765

  • Extension Mailing Address:


    State of Delaware Division of Revenue
    PO Box 508
    Wilmington DE 19899-0508

  • Electronic Filing:
    Delaware accepts Resident, Nonresident, and Part-year returns electronically. They can be transmitted with the Federal return or transmitted as a State only return. Exceptions to efile are returns with a Delaware Lump Sum Distribution and returns where the number of exemptions on the state return does not match the exemptions on the Federal return. The only exception to this ruling would be additional exemptions for a taxpayer and/or spouse 60 years of age or over. Delaware no longer requires the preparer to mail in form DE-8453. This document is to be filed by the preparer for a period of three years. State copies of the W-2s and other forms that show Delaware individual income tax withholding; copies of all Federal/Delaware Schedules for income/losses reported on the Delaware return; copies of other state tax returns utilized to receive a credit for taxes paid to another state; and all documents requiring manual signatures will also be filed for a period of three years.
Federal Tax Information