Delaware Withholding Tax Return (W1)

DE W1 Information

Use this form if you are required and pay your Delaware Withholding Tax on a monthly basis. Monthly returns are due on the 15th day of the month following the close of the month.

Link to official form info: Delaware W1

Link to official form info for W1

Tax Reminder works year round to keep official tax form info up-to-date for Delaware and the rest of the USA. The IRS and states change their forms often, so we do the hard work for you of figuring out where the official form info is located.

To access the official link to form DE W1 and get reminded when it's due, sign up for a free Tax Reminder account:

Upcoming Due Dates in the Next Year:*
Wednesday Apr 30, 2025
Monday Jun 02, 2025
Monday Jun 30, 2025
Thursday Jul 31, 2025
Monday Sep 01, 2025
Tuesday Sep 30, 2025
Friday Oct 31, 2025
Monday Dec 01, 2025
Wednesday Dec 31, 2025
Monday Feb 02, 2026
Monday Mar 02, 2026
Tuesday Mar 31, 2026
Create a free account to see exactly when to file this form, receive email or SMS notification reminders, and to keep a record of filing it in your history.
* Due dates are based on the filing requirements for this form and may vary depending on your tax year.

Never forget to file DE W1 again.

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 Return

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