MT MW-3 Information

All employers are required to file form MW-3, all W-2s with or without withholding and all Forms 1099 with Montana withholding must be submitted to support the MW-3.

Link to official form info:

Link to official form info for MW-3

Tax Reminder works year round to keep official tax form info up-to-date for Montana 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 MT MW-3 and get reminded when it's due, sign up for a free Tax Reminder account:

  • Upcoming Due Dates in the Next Year:*
  • Friday Feb 28, 2025
  • 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 MT MW-3 again.
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