2023 Delaware State Tax Deadlines

Delaware Individual Income Tax Filing deadlines and extensions for 2023.

If you are a resident or have been involved in significant business operations within Delaware then you might be required to file Delaware State Taxes. We look at the most important tax deadlines and tax extensions for Delaware in 2023.

C Corporation

Delaware C Corporation Tax Deadlines for 2023

You must file & pay Corporate Income Taxes in Colorado by April 16, 2024.

Form 1100

Extension to File Taxes in Delaware for 2023

You must send payment for taxes in Delaware for the fiscal year 2022 by April 16, 2024.

The Extension Deadline is October 15, 2024 to file your Delaware income tax return.

Delaware automatically grants 6 months extensions on filing corporate income tax returns. This means you do not need to file for an extension in Delaware.

This is an extension to FILE, not an extension to PAY - payment is still due April 16, 2024.

Pass-Throughs

Delaware S Corporation & Partnership Tax Deadlines for 2023

You must file in Delaware by March 15, 2024.

Extension to File S Corporation & Partnership Taxes in Delaware for 2023

You must send payment for taxes in Delaware for the fiscal year 2022 by April 16, 2024.

The Extension Deadline is October 15, 2024 to file your Delaware income tax return.

Delaware automatically grants 6 months extensions on filing corporate income tax returns. This means you do not need to file for an extension in Delaware.

This is an extension to FILE, not an extension to PAY - payment is still due April 16, 2024.

Delaware Individual Tax Deadlines for 2023

Estimated Tax Deadline for Delaware 2023

Estimated tax payments are made:  

  • April 18, 2023
  • June 15, 2023 
  • September 15, 2023
  • January 15, 2024

See Form PIT-EST instructions for the amount to pay with each voucher.

Individual Tax Deadline for Delaware 2023

You must file & pay Individual Income Taxes in Delaware by April 16, 2024.

File Online Delaware.Gov

File by Mail must be postmarked by the due date.

Applicable forms:

Form PIT-RES - Full Time Resident

Form PIT-NON -  Non Residents

Tax tables

Extension to File Taxes in Delaware for 2023

You must send payment for taxes in Delaware for the fiscal year 2023 by April 16, 2024.

The Extension Deadline is October 15, 2024 to file your Delaware Individual Income tax return. Delaware will automatically grant a 6 months extension on filing personal income taxes if a federal extension is filed.  This means if the balance due on the Delaware return is zero or less and you filed a federal extension, you do not need to file Form 1027. If there is a balance due in Delaware, file Form 1027. 

This is an extension to FILE, not an extension to PAY - payment is still due April 16, 2024.

Estates Tax Deadline for Delaware in 2023

Delaware Estate Tax filings are no longer required.

Farmer and Fisherman Taxes for Delaware 2023

Farmers and Fishermen. If at least two-thirds of your gross income is derived from farming or fishing, you may file a Declaration on or before January 15, 2024, pay the indicated Estimated Tax for the entire taxable year, and file a return on or before April 30, 2024, or file a return and pay the tax in full on or before March 1, 2024, otherwise ignoring the provisions concerning Declaration of Estimated Tax.

Sources

The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.

Easily save clients thousands in taxes.
Scan client returns.
Uncover savings.
Export a professional tax plan.

Looking for a different year?

Tax strategies to save every dollar you deserve

Instead helps you find every eligible tax strategy, from basic credits and deductions to complex scenarios, ensuring you maximize your savings.