CIT-EXT: Corporate Request for Extension (Revision)
Delaware · Delaware Division of Revenue · Used for tax years 2024
Form CIT-EXT is Delaware’s corporate income tax extension request for 2024. It includes a worksheet to calculate the amount due with the extension using estimated Delaware taxable income, credit carryover, and estimated tax paid.
Who files this form
Form CIT-EXT is for corporations requesting an extension for Delaware corporate income tax. This edition applies to tax year 2024.
What you'll need
Have the following information ready to complete the form:
- Corporation name, taxpayer ID and mailing address.
- Calendar or fiscal year ending date and the requested extension date.
- Estimated Delaware taxable income, credit carryover and estimated tax paid for the year.
- Authorized signer's printed name, signature, date, email address and phone number.
How to file
Complete the corporation information and the taxpayer's worksheet. Enter the balance due from worksheet line 7 and the amount of this payment in the fields at the top of the form.
Sign and date the form and provide the authorized signer's printed name and contact information.
Mail the completed form with remittance payable to:
Delaware Division of Revenue
PO Box 0830
Wilmington, DE 19899-0830
Common mistakes
- Do not cut the page.
- Be sure to sign the form.
- Keep a copy for your records.
Questions people ask
What tax rate does the worksheet show?
The worksheet shows a corporate income tax rate of 8.70%.
How do I calculate the amount due with the extension?
On worksheet line 7, subtract line 6 from line 5. Enter the line 7 balance due at the top of the form.
What if I am also filing a request for change form?
Check the box labeled for a request for change form being filed.
What am I declaring when I sign?
Under penalties of perjury, you declare that you have examined the return, including accompanying schedules and statements, and believe it is true, correct and complete. If someone other than the taxpayer prepares it, the declaration is based on all information the preparer knows.