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Delaware 1099 Tax Obligations for Companies

Last Updated:
January 23, 2017

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

Additional Contact information:

1099 filing requirements: James Stewart at 302-577-8170 or

File formats and the online submission process: David G. Smith at 302-323-5300 x3032 or

Paper forms (W-2, 1099, and reconciliation) should be mailed to:

State of Delaware

Division of Revenue

P.O. Box 830

Wilmington, DE 19899-0830

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