CNMI Department of Finance
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Revenue & Taxation Procurement & Supply Customs

Welcome to the CNMI Department of Finance

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

Our offices provide financial management services and other related activities to the Commonwealth.  In the interest of better service to the people of the CNMI, this website allows for easy access to forms, data, and programs with the latest updates on regulations, policies, and news. 

The Department of Finance is comprised of seven divisions in order to execute our duties and responsibilities:

Tax News &Tips

Forms 1040A-CM and 1040-CM Updated

Due to the enactment of H.R. 1892 on February 9, 2018, above-the-line deductions for qualified tuition and related expenses are now allowed for tax year 2017. Forms 1040A-CM and 1040-CM have been updated accordingly. If you are eligible to take advantage of this deduction, please submit an amended return using the new form:

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.