FID-EST: Quarterly Declaration Estimated Tax (2025 installments) (Revision)
Delaware · Delaware Division of Revenue · Used for tax years 2024
Delaware Form FID-EST is a declaration of estimated fiduciary income tax for 2025. It identifies the trust or estate and fiduciary and reports the quarter and installment payment amount.
What you'll need
Have the information requested on the form ready:
- Name of the trust or estate and taxpayer ID.
- Fiduciary’s name, title, and mailing address.
- Fiscal year end, tax year, quarter, and due date.
- Installment amount and installment payment amount.
- Signer’s title, email address, and phone number.
The form directs you to include payment when mailing the completed form.
How to file
Complete the form and have the fiduciary officer or representative sign and date it. Keep a copy for your records.
Mail the completed form with payment payable to:
Delaware Division of Revenue
PO Box 2044
Wilmington, DE 19899-2044
Do not cut the page.
Common mistakes
- Cutting the page: The form says, “DO NOT CUT THIS PAGE.”
- Forgetting to sign: The form reminds you to sign the return.
- Not keeping a copy: The form reminds you to keep a copy for your records.
Questions people ask
What is Form FID-EST for?
It is a declaration of estimated fiduciary income tax.
Who signs the form?
The signature line is for the fiduciary officer or representative.
Who should the payment be payable to?
Make the payment payable to the Delaware Division of Revenue.
Should I cut the page before mailing it?
No. The form explicitly says not to cut the page.
Should I keep a copy?
Yes. The form tells you to keep a copy for your records.