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Revenue & Taxation Procurement & Supply Customs

CNMI Department of Finance - Revenue & Taxation

Upcoming Filing Due Dates*:

*Quarterly and annual filings only; within 60 days. All filings are due by 4:30PM on the due date of the respective form.

Montlhy filings are due on the last day of the month after the filing period.

For all filings, the due date will be the following business day if the regular due date falls on a holiday or a weekend. CNMI Holiday Calendar

Download Forms, Instructions & Publications

Form W-3-SS Online Filing

Anyone required to file Form W-2CM must file Form W-3SS to transmit Copy A of these forms to the Social Security Administration. All filings are due on January 31, whether you file paper forms or electronically. For more information, please visit the Social Security Administration Business Services Online website.

Forms, Schedules & Instructions for 2018/2019:

By Form Description:

View form listing for the current tax period
View form listing for previous tax periods


** Note: For forms not listed below, instructions specific to the CNMI are included in the provided form. For general form instructions, please visit the IRS website.

Additional Forms, not otherwise classified:

Forms Archive: