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Due in part to the pandemic, the Delaware Division of Revenue anticipates delays in processing paper returns for the 2022 filing season.  As a result, please consider filing your return electronically instead of submitting a paper return.  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.

2021 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 and Amended Income Tax Form (PIT-RES) – Paper Form: this form should only be used if you plan to print and manually enter figures 
• Delaware Individual Resident Income Tax Form Schedule (PIT-RSS)
• Delaware Resident Schedule A Form (PIT-RSA)
• Delaware Individual Resident Income Tax Return – Instructions for Form (PIT-RES)

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

• 2021 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!

Because the Delaware Estate Tax was repealed for individuals dying on or after January 1, 2018, this return is not required for 2019.  If you have an estate involving a decedent who died prior to January 1, 2018, please use the 2017 forms linked below.

• 2017 Form 900R Resident Estate Tax Return
• 2017 Form 900NR Non-Resident Estate Tax Return

• Form PIT-EST – Delaware Estimated Income Tax Voucher – 2022 – Select quarter using Quarter dropdown. Do Not Cut Form!
• Form PIT-EST Delaware Estimated Income Tax Voucher – Instructions
• Form 200ES REQ Request for Change

• Form 200C-EX Delaware Composite Income Tax Voucher – 2022 – Request For Extension
• Form 200C-ES Delaware Composite Estimated Income Tax Voucher – 2022 – Select quarter using Installment Due dropdown
• Form 200C-EX Delaware Composite Income Tax Voucher – 2021 – Request For Extension

• Form 400 Delaware Fiduciary Income Tax Return
• Form 400i Delaware Fiduciary Income Tax – Instructions

• Form 400-ES (1E,2E,3E,4E) – Quarterly Declaration of Estimated Tax Return. – Select appropriate quarterly installment due date from dropdown. 
• Form 400-ESi – Quarterly Declaration of Estimated Tax Return – Instructions

• Form 400-EX (5E) – 2022 Declaration of Estimated Tax Return Extension
• Form 400-EX (5E) – 2021 Declaration of Estimated Tax Return Extension

• Form 400 Schedule K-1
• Form 400-V Electronic Filer Payment Voucher
• Form 400-Vi Electronic Filer Payment Voucher – Instructions

• Form 200C Delaware Composite Return
• Form 200Ci Delaware Composite Return – Instructions

• Form PIT-CFR Claim for Refund of Deceased Taxpayer

• Form 300 Delaware Partnership Return
• Form 300i Delaware Partnership Return – Instructions
• Form 300 Schedule K1 Partners Share of Income

• 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

• 2022 Form 5506CPE Exemption from Public Utility Tax on Cell Phones
• 2023 Form 5506CPE – Exemption from Public Utility Tax on Cell Phones
• Form 5506CPE Exemption from Public Utility Tax on Cell Phones – Instructions

• Form 8821DE Authorization to Release Tax Information