DE Form 200-01 Information
You must file a Delaware Residential Income Tax Return if: a. If you had income from any source while a resident of Delaware, or b. If you had income from a Delaware source while you were a part year resident of Delaware.
Link to official form info: Delaware Form 200-01
Link to official form info for Form 200-01
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- Upcoming Due Dates in the Next Year:*
- Wednesday Apr 15, 2026
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* Due dates are based on the filing requirements for this form and may vary depending on your tax year.
10 Delaware Tax Filings & Forms:
Form 200-01 - Residential Individual Income Tax Return 200-02 NR - Non-Resident Individual Income Tax Return 1100EZ - Corporation Income Tax Return 1100S - S Corporation and Reconciliation of Shareholders Information Return W1Q - Quarterly Payroll Withholding W3A/W2 - Monthly and Quarterly Annual Reconciliation UC-A8 - Unemployment Insurance 300 - Partnership Return W1 - Withholding Tax Return GRT - Gross Receipt Tax ReturnAre we missing a Delaware tax form?
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