Delaware state tax filing

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$0Simple tax returns
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  • 350+ deductions and credits
  • Filing history, compare this year with last year
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Delaware tax details

The Delaware Division of Revenue made very few changes for the 2025 tax year.

The limit for state and local taxes paid that can be claimed for Delaware itemized deductions increased from $10,000 to $40,000 ($20,000 if married filing separately). This change matches the increase to the state and local tax deduction limit for federal itemized deductions.

2025 Delaware tax forms

These are the supported Delaware state tax forms on FreeTaxUSA:

  • Form PIT-RES
    Resident Individual Income Tax and Amended Return

  • Form PIT-NON
    Nonresident Individual Income Tax and Amended Return

  • Form PIT-RSS
    Resident Individual Income Tax Schedules

  • Form PIT-NNS
    Nonresident Individual Income Tax Schedules

  • Form PIT-RSA
    Resident Schedule A

  • Form PIT-NSA
    Nonresident Schedule A

  • Form PIT-VCH
    Tax Payment Voucher for E-Filers

  • Form PIT-EST
    Estimated Income Tax Voucher

  • Form PIT-EXT
    Application for Automatic Extension of Time to File

Frequently asked questions

2025 Delaware filing deadlines

Keep these Delaware state deadlines in mind as you do your taxes.

  • Individual tax returns
    Due by April 30, 2026

  • Delaware tax extension
    Due by April 30, 2026

  • Income tax payment
    Due by April 30, 2026

  • Tax returns for extension filers
    Due by October 15, 2026

2025 Delaware refunds

Ways to receive your refund

Get your Delaware refund deposited in your checking or savings account, mailed as a check, loaded on a prepaid debit card, or put towards next year's Delaware taxes.

You will receive a tax return acknowledgement from the Delaware Division of Revenue when your return has been received and is being processed. If additional information is needed to process your return, the Division of Revenue will contact you. Refund time frames can vary depending on the complexity of your return, but the Division of Revenue's goal is to process refunds within twelve weeks of receipt.

Refund status for e-filed tax returns

If you filed your Delaware tax return electronically, you can usually check your Delaware refund status 4-5 business days after the Delaware Division of Revenue accepts your return.

Refund status for mailed tax returns

If you mailed your Delaware tax return, you should wait 3 to 4 weeks before checking your DE refund status. Once processed, it may take 5 to 7 business days for your refund to appear in your bank account or on a prepaid debit card.

How to check your refund status

Check your DE refund status online

Call the Delaware Division of Revenue at (302) 557-8200

2025 Delaware state tax payments

Delaware has many income tax payment options. Find the option that works best for you below.

Pay with direct debit

You can use this payment option when you e-file with us.

Due by April 30, 2026

Pay by mail

If mailing your tax return, include your check or money order with your return.

If you e-file your tax return, mail in a check or money order with Form PIT-VCH.

If you filed an extension, mail in your extension tax payment with Form PIT-EXT.

Due by April 30, 2026

2025 Delaware extension

An extension extends the time you have to file your return by up to 6 months. If you need to pay taxes, you are required to pay the amount due by April 30, 2026.

You need to pay at least 90% of your taxes by April 30, 2026. If you pay late, you may be charged a monthly 5% late penalty and interest (0.5% per month) on any unpaid taxes.

If you expect a Delaware refund:

Submit Form PIT-EXT by April 30, 2026.

If you expect to owe Delaware taxes:

Submit Form PIT-EXT with any necessary payment by April 30, 2026.

You must still submit Form PIT-EXT even if you requested a federal extension. You can email a copy to DOR_PublicService@delaware.gov or mail a copy to the Division of Revenue, P.O. BOX 830, Wilmington, DE 19899-0830.

Delaware prior year taxes

Even though the deadline has passed, you can still prepare Delaware taxes for prior years. Many people who file late tax returns have refunds waiting for them. We'll help you prepare and mail your federal and state tax returns.

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