Delaware Division of Revenue Form Instructions

Form CMP-EXT — Composite Return Extension of Time to File

Official textrevenuefiles.delaware.gov

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D E L A W A R E
D I V I S I O N O F R E V E N U E
2 0 2 5
F O R M

# CMP-EXT

Application for Automatic Extension of Time to File Delaware Composite Income Tax Return

Business Name
Street Address
City State Zip Code
Employer Identification Number
Tax Year Must be Filed by
April 30, 2026
TOTAL INCOME TAX LIABILITY (You expect to owe)
1.
ESTIMATE TAX PAYMENTS (Including prior year overpayments allowed as a credit)
2.
OTHER PAYMENTS AND CREDITS (See instructions)
3.
TOTAL - Add Line 2 to Line 3
4.
BALANCE DUE AND PAY IN FULL - Subtract Line 4 from Line 1
5.

  1. .00
  2. .00
  3. .00
  4. .00
  5. .00

An automatic extension of time until October 15, 2026 is requested to file Composite Income Tax Return.

# BE SURE TO SIGN YOUR RETURN BELOW AND KEEP A COPY FOR YOUR RECORDS

Under penalties of perjury, I declare that I have examined this return, including accompanying schedules and statements, and believe it is true, correct and complete. If prepared by a person other than taxpayer, the declaration is based on all information of which the preparer has any knowledge.

SIGNATURE OF OFFICER DATE
TITLE OF OFFICER
PHONE NUMBER
EMAIL ADDRESS

MAIL COMPLETED FORM WITH
REMITTANCE PAYABLE TO:
Delaware Division of Revenue
PO Box 830
Wilmington, DE 19899-0830

DO NOT CUT THIS PAGE
DFCMPEXT2025019999V1
Revision 20250728

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