Delaware Tax Forms 2019

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TaxHow has all the forms and eFile solutions that you will ever need for your Delaware State taxes. If you find any form that is missing for your State, let us know and we will make our best to update them immediately.


Delaware Form 200-01X
Delaware Form 200-01X 2018

Delaware Resident Amended Income Tax Return

Delaware Form 200-01X is a tax return document for residents who need to amend their previous return. Also known as the amended individual tax return form, it is used to correct any errors in income, reimbursements or tax credits on a number of other Delaware 200-01R tax documents. When filling out your 200-01X form, you will be given the chance to explain why you are making an amendment in your tax return.

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Delaware Form 200-02
Delaware Form 200-02 2018

Delaware Individual Non-resident Income Tax Return

Form 200-02 is the form used by part-year residents and non-residents of Delaware to file Delaware tax returns. Although other forms and schedules may be supplemented with Form 200-02, this form must be submitted by all Delaware part-year residents and non-residents.

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Delaware Form 329
Delaware Form 329 2018

Delaware Special Tax Computation For Lump Sum Distribution From Qualified Retirement Plan

Form 329 must be completed by a person who is not self-employed only if a distribution was made due to the death of the participant, or due to the participant’s separation from work, or after the participant attained age 59 ½.

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Delaware Form 700
Delaware Form 700 2018

Delaware Income Tax Credit Schedule

Form 700 may be completed by C corporations, S corporations, partnerships, resident individuals or sole proprietors, nonresident individuals or sole proprietors, residents and nonresidents estates or trusts, residents and nonresidents decedent estates. For more information, please check the specific instructions that come with the Delaware Form 700.

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Delaware Tax Booklets
Delaware Tax Booklets 2018

Delaware Individual Resident Income Tax Booklets Forms

The Delaware tax booklet is a guide for state residents on how to file their state income taxes. The guide features step-by-step instructions on how to file by mail or e-file your state taxes. In addition, the booklet features information on every type of state tax form as well as areas where filers commonly make mistake.

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Delaware Form 1100
Delaware Form 1100 2017

Delaware Corporate Income Tax Return

Form 1100 may be used by all corporations who do business in Delaware and who need to file their income tax returns. A corporation needs to complete Federal Form 1120 first and attach it to the Delaware Form 1100.

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Delaware Form 1027
Delaware Form 1027 2015

Application for Automatic Extension of Time to File a Delaware Individual Income Tax Return

The 1027 form is used for Delaware residents who seek an extension of the filing deadline for their state income tax returns. Successfully filing the 1027 automatically allows Delaware residents a six month extension to file their 200-01R or 200-02 state income tax returns.

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Delaware Form 200-01R
Delaware Form 200-01R 2014

Delaware Individual Resident Income Tax Return (Long)

Delaware form 200-01R is designed for state residents to report their annual income. The form features space to include your income, marital status as well as space to report any children or dependents you may have. By filling out the form, you will see whether or not you owe money to the state or if you will receive a refund.

eFile Delaware Form 200-01R »
Delaware Form 200-03EZ
Delaware Form 200-03EZ 2012

Delaware Individual Resident Income Tax Return (Short)

Form 200-03EZ is for all Delaware residents who need to file Delaware resident tax returns. This form is the shorter version of 200-01R. Please note that there are certain requirements you need to meet in order to qualify to file your return with Form 200-03EZ.

Delaware no longer offers this form.

eFile Form 200-03EZ »
Delaware Schedule I-II-III
Delaware Schedule I-II-III 2012

Delaware Resident Schedules

Schedule I-II-III can be completed only by residents and it must be mailed together with one’s Delaware tax return.

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Delaware Tax Forms Mailing Addresses

Here are the mailing addresses available for Delaware. Please note that some specific forms might have a different addresses. Please check the Form's instructions before using any addresses listed here.


General Address
New Castle County
Carvel State Office Building
820 North French Street
Wilmington, DE 19801
Phone: 302.577.8200
Income Tax Returns (Balance Due)
Department of Finance
P.O. Box 508
Wilmington, DE 19899 - 508
Income Tax Returns (Refund Owed)
Department of Finance
P.O. Box 8765
Wilmington, DE 19899-8765
Income Tax Returns (Zero Balance)
Department of Finance
P.O. Box 8711
Wilmington, DE 19899-8711
Kent County Thomas Collins Building
540 S. Dupont Highway
Dover, DE 19901
Phone: 302.744.1085
Sussex County
20653 Dupont Blvd. Suite 2
Georgetown, DE 19947
Phone: 302.856.5358