CMP-TAX: Composite Return (Revision)
Delaware · Delaware Division of Revenue · Used for tax years 2024
Form CMP-TAX is Delaware's 2024 Composite Personal Income Tax Return for nonresident partners and shareholders. It reports Delaware-sourced income, tax liability, credits and payments, and any balance due or refund.
Who files this form
The 2024 Delaware CMP-TAX is a composite personal income tax return for businesses with nonresident partners or shareholders. It reports Delaware-source income for nonresidents only.
The form does not state which businesses are required to file.
What you'll need
Have the following information and supporting schedules ready:
- Business name, address, Delaware address if different, and employer identification number or taxpayer ID.
- Nature of business, date and state of incorporation, and fiscal-year beginning and ending dates if applicable.
- Delaware-source income for nonresidents, credits, estimated taxes paid, capital gains tax payments, and S corporation payments.
- Form PIT-CRS for nonrefundable credits or refundable business credits. The form requires this attachment for both.
- Schedule REW-EST for capital gains tax payments.
- Other appropriate supporting schedules.
How to file
Complete the business information and check the applicable box for an initial, final, or amended return.
Calculate tax liability by multiplying line 1 by .0660. Subtract nonrefundable credits on line 3 from line 2, entering zero on line 4 if the result is negative. Add lines 5 through 8 to get total payments on line 9. Use lines 4 and 9 to determine the balance due or refund.
Have the officer sign and date the return. Complete the paid preparer information if applicable, attach the appropriate supporting schedules, and keep a copy for your records.
Mail the completed form with remittance payable to:
Delaware Division of Revenue
PO Box 508
Wilmington, DE 19899-0508
Common mistakes
- Forgetting to sign the return. The form specifically reminds you to sign.
- Failing to keep a copy for your records.
- Leaving out appropriate supporting schedules.
- Omitting Form PIT-CRS when reporting nonrefundable credits or refundable business credits.
- Omitting Schedule REW-EST when reporting capital gains tax payments.
Questions people ask
What income goes on line 1?
Line 1 is for Delaware-source income of nonresidents only.
How is the tax liability calculated?
Multiply line 1 by .0660 and enter the result on line 2.
What if nonrefundable credits exceed the tax liability?
Subtract line 3 from line 2. If the result is negative, enter zero on line 4.
How do I determine whether I owe tax or have a refund?
If line 9 is less than line 4, subtract line 9 from line 4 and enter the balance due on line 10. The form says to pay it in full. If line 4 is less than line 9, subtract line 4 from line 9 and enter the overpayment and refund on line 11.
Does the form have an amended return option?
Yes. It includes checkboxes for an initial return, final return, and amended return.