File Online – FREE!
No income requirements. Faster refunds.

The Division of Revenue links for online filing options are available at https://revenue.delaware.gov/file/.  Electronic filing is fast, convenient, accurate and easy.  When completing a form electronically, please download the form prior to completing it to obtain the best results.

2024 Fillable Forms / Instructions

• Delaware Individual Resident and Amended Income Tax Form (PIT-RES) – Fillable Form: this form will allow you to download, enter figures and calculate
• Delaware Individual Resident Income Tax Form Schedule (PIT-RSS)
• Delaware Individual Resident Schedule A Form (PIT-RSA)
• Delaware Individual Resident Income Tax Return – Instructions for Form (PIT-RES)
• Delaware Individual Electronic Filer Payment Voucher (PIT-VCH)

• Delaware Individual Non-Resident and Amended Income Tax Form (PIT-NON) – Fillable Form: this form will allow you to download, enter figures and calculate
• Delaware Individual Non-Resident Income Tax Form Schedule (PIT-NNS)
• Delaware Individual Non-Resident Schedule A Form (PIT-NSA)
• Delaware Individual Non-Resident Income Tax Return – Instructions for Form (PIT-NON)

• 2024 Income Tax Table

• Schedule W Apportionment Worksheet (PIT-SCW)
• Special Tax Computation for Distribution from Qualified Retirement Plan Form (PIT-STC)

• Delaware Underpayment of Estimated Taxes Form (PIT-UND)
• Form PIT-UND Underpayment of Estimated Taxes – Instructions

Extension Request Form: Mail to State of Delaware, Division of Revenue, PO BOX 830, Wilmington, DE 19899-0830

• Extension Request Voucher (PIT-EXT)  – Do Not Cut Form!

• Form PIT-EST – Delaware Estimated Income Tax Voucher – 2025 – Select quarter using Quarter dropdown. Do Not Cut Form!
• Form PIT-EST Delaware Estimated Income Tax Voucher – Instructions
• Form PIT-REQ Request for Change (Formerly 200ES REQ)

• Form CMP-EST Delaware Composite Estimated Income Tax Voucher – 2025 – Select quarter using Installment Due dropdown

Please Note: If you file a Composite return, please make sure you are submitting estimated payments using the CMP-EST form and not the PIT-EST.

• Form FID-TAX Delaware Fiduciary Income Tax Return
• Form FID-TAX Delaware Fiduciary Income Tax – Instructions

• Form FID-EST – Quarterly Declaration of Estimated Tax Return – 2025 – Select appropriate quarterly installment due date from dropdown.
• Form FID-EST – Quarterly Declaration of Estimated Tax Return – 2024 – Select appropriate quarterly installment due date from dropdown.  
• Form FID-EST – Quarterly Declaration of Estimated Tax Return – Instructions

• Form FID-EXT – 2024 Declaration of Estimated Tax Return Extension

• Form FID-BEN Schedule K-1
• Form FID-VCH Electronic Filer Payment Voucher
• Form FID-VCH Electronic Filer Payment Voucher – Instructions

• Form CMP-TAX Delaware Composite Return
• Form CMP-TAX Delaware Composite Return – Instructions
• Form CMP-EXT Delaware Composite Return Extension
• Form CMP-SCH Delaware Composite Income Tax Schedule
• Form CMP-EST Delaware Composite Estimated Income Tax Voucher – 2025 – Select quarter using Installment Due dropdown

• Form PIT-CFR Claim for Refund of Deceased Taxpayer

• Form PRT-RTN Delaware Partnership Return
• Form PRT-RTN Delaware Partnership Return – Instructions
• Form PRT-PSI Schedule K1 Partners Share of Income
• Form PRT-EXT Delaware Partnership Return Extension

• Form PIT-CRS Delaware Income Tax Credit Schedule

• Form PIT-BIN Business Income of Non-Resident
• Form PIT-BIN Business Income of Non-Resident – Instructions

• Form REW-EST Real Estate Tax Return – Declaration of Estimated Income Tax
• Form REW-EST Real Estate Tax Return – Declaration of Estimated Income Tax – Instructions
• Form REW-SCH – Real Estate Tax Return – Declaration of Estimated Income Tax Schedule

• 2024 Form PUT-EXM (Formerly 5506CPE) – Exemption from Public Utility Tax on Cell Phones
• Form PUT-EXM (Formerly 5506CPE) Exemption from Public Utility Tax on Cell Phones – Instructions

• Form ATH-RTF Authorization to Release Tax Information (formerly Form 8821DE)