Questions & Answers

How do I file a Delaware extension?

To extend your due date for submitting your income tax return (from May 2, 2022 to October 17, 2022), you must submit the following to the Delaware Division of Revenue no later than May 2, 2022:

  1. Your payment of any balance of tax estimated to be due for tax year 2021 AND
  2. The completed copy of DE Form 200-EX .
You can fill out Form 200-EX online , email a copy to DOR_PublicService@delaware.gov, or mail a copy to the Division of Revenue, P.O. BOX 830, Wilmington, DE 19899-0830.

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