MDU Resources bill payment options and where to send payments
MDU Resources operates electric and natural gas utilities across Montana, North Dakota, South Dakota, and Wyoming under brand names like Montana-Dakota Utilities, Otter Tail Power, and Black Hills Energy. You can pay your bill online through your account portal, by phone, by mail, or in person at payment centers — the fastest and most convenient method depends on when you need the payment processed and whether you want a record of the transaction.
The online portal is the quickest way to pay and gives you immediate confirmation. If you prefer mailing a check, you'll need the correct address for your specific utility and region, since MDU operates multiple companies with different payment processing centers. Phone and automatic bank draft are also available if you want to avoid logging in each month.
Key Takeaways
- MDU Resources operates under multiple utility names in four states, so confirm which company serves your address before looking up payment instructions.
- Online payment through your account portal is processed the same day and shows confirmation immediately, making it the fastest option.
- Mailing a check requires the correct payment address for your specific utility company and region, which you'll find on your bill or the company website.
- Setting up automatic bank draft or recurring online payments removes the need to remember to pay each month and helps avoid late fees.
- Phone payments are available but typically charge a convenience fee, so check the cost before choosing this method.
Paying online through your MDU account portal
Log into your account on the MDU Resources website or the website of your specific utility company (Montana-Dakota Utilities, Otter Tail Power, or Black Hills Energy). Once you're signed in, look for a "Pay Bill" or "Make a Payment" button, usually visible on the account dashboard or in a menu labeled "Billing" or "Account."
You'll enter the amount you want to pay and choose your payment method — debit card, credit card, or bank account. Payments made before the cutoff time (usually 5 p.m. on business days) post the same day. You'll receive an on-screen confirmation number immediately; save or print this for your records.
If you don't have an online account yet, you can create one using your account number (found on your bill) and other identifying information. Setting up an account takes about five minutes and lets you view your bill, see your payment history, and set up automatic payments.
Mailing a check to MDU Resources
Write your account number on the check and include the payment stub from your bill if possible — this helps the payment post to the correct account faster. The mailing address depends on which utility company serves you and which region you're in. Your bill shows the correct address in the payment section.
Mail typically takes 5 to 10 business days to arrive, so send your check at least two weeks before the due date to avoid a late payment. If you're close to the due date, paying online or by phone is safer because the payment posts immediately.
Keep a copy of the check or a photo of the front and back for your records. If your payment doesn't appear on your account within two weeks of mailing, contact customer service with your check number and the date you mailed it.
Setting up automatic payments to avoid missed bills
Automatic bank draft is the most reliable way to ensure your bill is paid on time every month. Log into your online account and look for "Automatic Payments," "Recurring Payments," or "Bank Draft" in the settings or billing section. You'll provide your bank account number and routing number, and choose whether to pay the full bill amount or a fixed amount each month.
The payment is withdrawn on or shortly after your bill due date. You can change or cancel the automatic payment anytime through your account, and you'll still receive your bill so you can verify the amount before it's withdrawn.
Automatic payment is free and removes the risk of forgetting to pay, which means you won't incur late fees or have your service interrupted. If your bill amount varies significantly month to month (which is common with heating or cooling seasons), you can set it to pay the full amount due rather than a fixed dollar amount.
Paying by phone and in-person payment centers
You can pay by phone by calling the customer service number on your bill. A representative will take your payment information and process the payment while you're on the call. Phone payments are posted the same day, but most utilities charge a convenience fee for this service — typically $2 to $5 — so ask about the fee before you provide your payment information.
Some MDU utilities operate payment centers or partner with local businesses where you can pay in person with cash or a check. These locations vary by region and utility company. Call customer service or check the company website to find payment centers near you. In-person payments are usually processed the same day.
Understanding your bill due date and late payment consequences
Your bill due date appears on the front of your statement, usually 15 to 20 days after the bill is issued. If you pay after this date, you'll be charged a late fee, which is added to your next bill. The late fee amount varies by utility company and state regulation.
If your payment is more than 30 days late, MDU may issue a disconnection notice. This notice gives you a grace period (usually 10 days) to bring your account current before service is shut off. If your service is disconnected, you'll need to pay the full past-due amount plus a reconnection fee to restore power or gas.
If you're having trouble paying your bill, contact customer service before the due date. Many utilities offer budget billing (which spreads costs evenly across the year) or hardship programs that can help lower your monthly payment.
Troubleshooting common payment problems
If your online payment shows an error, check that your account number is correct and that your card or bank account has sufficient funds. If the error persists, try a different payment method or call customer service. Technical issues are usually resolved within a few hours.
If you paid online but the payment doesn't appear on your account within 24 hours, log back in and check your payment history. The payment may still be processing. If it's been more than 24 hours and the payment doesn't show, contact customer service with your confirmation number.
If you mailed a check and it hasn't posted after two weeks, call customer service with the check number, amount, and date you mailed it. They can trace the payment and confirm whether it was received. Never send cash by mail.
Frequently Asked Questions
Can I pay my MDU bill with a credit card online?
Yes, most MDU utilities accept credit and debit cards through their online portal. Some utilities charge a convenience fee for credit card payments (typically 2 to 3 percent of the payment amount), while debit card and bank account payments are usually free. Check your utility's website or call to confirm the fee before paying with a credit card.
What time does my online payment need to be made to post the same day?
Most MDU utilities process online payments submitted before 5 p.m. on business days the same day. Payments made after 5 p.m. or on weekends and holidays post the next business day. Check your utility's website for the exact cutoff time, as it may vary slightly by company.
Is there a fee for automatic bank draft payments?
No, automatic bank draft is free. There is no charge to set up or use automatic payments through your bank account. If you pay by credit card, phone, or in person, fees may apply — check with your utility for current fees.
What should I do if I can't pay my full bill by the due date?
Contact customer service before the due date to discuss your options. Many utilities offer budget billing, payment plans, or hardship programs that can help. Paying something before the due date is better than paying nothing, as it shows good faith and may prevent a late fee or disconnection notice.
Can I pay someone else's MDU bill if I have their account number?
Yes, you can make a payment on someone else's account if you have their account number. Pay online using their account number, or call customer service and provide the account number. The payment will post to that account. However, you cannot view their bill details or make changes to the account without authorization.