You can pay your Northwestern Energy bill online, by phone, by mail or in person. You can make online payments with your checking, savings or money market account. Through SpeedPay, you can make online payments with a credit, debit or ATM card.
When you enroll in EZ Pay, Northwestern Energy automatically deducts a payment from a checking or savings account. To pay by phone with a checking, savings or money market account, you can call 800-218-4959. For credit, debit or ATM card phone payments, call 877-361-4927. For mail payments, send your payment to Northwestern Energy, c/o Customer Service, 40 E. Broadway; Butte, MT, 59701-9394. Montana residents can make payments in person at any Western Union Quick Pay location.