PIT-EXT: Extension Request Voucher (2024)
Delaware · Delaware Division of Revenue · Used for tax years 2024
Delaware Form PIT-EXT requests an automatic extension until October 15, 2025, to file a 2024 Delaware individual income tax return. It reports expected income tax liability, withholding, estimated tax payments, other payments and credits, and any balance due to remit.
Who files this form
Form PIT-EXT is for taxpayers requesting an automatic extension to file their 2024 Delaware individual income tax return.
When it's due
- 2024 extension request deadline: April 30, 2025.
- Requested extended filing deadline for the 2024 return: October 15, 2025.
What you'll need
The form asks for the following information:
- Your name, taxpayer ID, and mailing address, plus spouse information in the fields provided.
- The total income tax liability you expect to owe for 2024.
- Delaware income tax withheld.
- Estimated tax payments, including prior-year overpayments allowed as a credit.
- Other payments and credits.
The form also provides signature and date fields for you and your spouse.
How to file
File online: https://tax.delaware.gov
File by mail: Send the form to:
State of Delaware
Division of Revenue
PO Box 830
Wilmington, DE 19899-0830
To complete the payment calculation:
- Enter your expected total income tax liability on line 1.
- Enter Delaware income tax withheld on line 2, estimated tax payments on line 3, and other payments and credits on line 4.
- Add lines 2, 3, and 4 and enter the total on line 5.
- Subtract line 5 from line 1 and enter the balance due on line 6. Remit the difference. If line 5 is greater than line 1, enter 0.
Complete the signature and date fields provided.
Common mistakes
- Cutting the page: The form says, “DO NOT CUT THIS PAGE.”
- Leaving out prior-year credits: Line 3 says to include prior-year overpayments allowed as a credit.
- Entering a negative balance when line 5 exceeds line 1: The form says to enter 0 in that case.
Questions people ask
What extension does this form request?
It requests an automatic extension until October 15, 2025, to file the 2024 Delaware personal income tax return.
When must I file the 2024 extension request?
The form lists April 30, 2025, as the filing deadline.
Can I file online?
Yes. The form directs taxpayers to https://tax.delaware.gov to file online.
Where do I include a prior-year overpayment allowed as a credit?
Include it on line 3 with estimated tax payments.
What if my payments and credits exceed my expected tax liability?
If line 5 is greater than line 1, enter 0 on line 6.