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Delaware 1099 Tax Obligations for Companies

Last Updated:
December 14, 2018

Does Delaware require state 1099 tax filing?

Yes, Delaware requires you to file 1099s to the Delaware Department of Finance.

Does Delaware participate in combined federal and state filing?

Yes, the state does. Learn more about combined state and federal filing. In most cases, if you participated in combined filing for your 1099s, then you do not need to send 1099s to the Delaware Department of Finance, they should already have a copy.

What are the filing deadlines?

February 28 for paper and March 31 for electronic.

What are the e-filing instructions?

Delaware’s 1099 filing instructions.

What is the state agency responsible?

Delaware Division of Revenue

Contacts and Addresses:

W-2 filing requirements: Public Service, 302-577-8200

1099 filing requirements: Kathy Revel.

File formats and the online submission process:

Mail your paper forms (W-2, 1099, and reconciliation) to:
State of Delaware
Division of Revenue
P.O. Box 830
Wilmington, DE 19899
If you are unable to comply with any of the requirements stated here, please contact to request a variance.

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