Fee
For utility payments submitted with insufficient funds, a fee of $25.00 plus applicable sales tax will be assessed to your utility account. Two insufficient funds/returns within a 12 month period will result in blocking this available payment option. There are no processing fees for payments using debit or credit cards.
Navajo Tribal Utility Authority • P.O. Box 170, Fort Defiance, AZ 86504 • Phone: 1-800-528-5011 Copyright © 2025 NTUA - A proud Enterprise of the Navajo Nation