Ya'a teeh and welcome to the official Navajo Nation, Office of the Navajo Tax Commission (ONTC) website!  The Office of the Navajo Tax Commission administers and audits nine taxes in the Navajo Nation, the largest Indian reservation in the United States.

Our mission is to promote tribal sovereignty by collecting tax revenues and to provide taxpayers quality service by helping them understand their tax responsibilities through fair and just application of Navajo tax laws.






Please send all electronic mail to the following email address:  nnontc@navajo-nsn.gov

We continue to encourage taxpayers to mail-in their documents. 


Memo To Retailers on Unhealthy Food Items





Other Bulletins: