E-filing: Supported Delaware State Tax Return Forms

The following state tax forms for Delaware are all supported by our online tax preparation software, should you need them. Remember: when you e-file your state tax return with CompleteTax, we'll fill out any state or federal forms that you require automatically.

Form 200-01, Delaware Individual Resident Income Tax Return

Form 200-ES, Declaration of Estimated Income Tax for Individuals

Form 200-V, Electronic Filer Payment Voucher

Form 209, Claim for Refund Due on Behalf of Deceased Taxpayer

Form DE2210, Underpayment of Estimated Taxes

Form DE-8453-OL, Delaware Individual Income Tax Declaration for On-Line Filing

(If you are not e-filing this tax year and wish to download any single tax form for a manual return, see the Delaware state tax website.)

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