Idaho Power's main payment methods
Idaho Power, the utility serving central and southern Idaho, lets you pay your bill through their website, by phone, through automatic bank transfers, or by mail. The fastest route is their online portal at idahopower.com, where you can pay when ready with a bank account or debit card. If you prefer not to use the internet, you can call their payment line at 1-800-635-5406 during business hours, mail a check, or set up automatic payments so the bill comes out of your account each month without you having to do anything.
Each method has a different timeline and a different chance of a payment being delayed or lost. Understanding which one fits your situation — whether you need to pay today, want to avoid fees, or prefer to keep a paper trail — helps you avoid late charges and service interruptions.
Key Takeaways
- Idaho Power's website (idahopower.com) processes online payments when ready if you pay before 5 p.m. Pacific time on a business day, with no fee for bank account payments.
- Automatic payments from your bank account cost nothing and may support you never miss a due date, though you need to set them up at least five business days before your bill is due.
- Phone payments at 1-800-635-5406 work during business hours and may carry a fee depending on your payment method.
- Mailed checks should arrive at least five business days before your due date to avoid late fees, and Idaho Power's mailing address is on your bill.
- Late payments trigger a reconnection fee if your service is shut off, so choosing a reliable method matters more than which one is fastest.
Paying online through Idaho Power's website
Go to idahopower.com and look for the "Pay My Bill" button, usually near the top of the page. You will need your account number (on your bill) and either a bank account or debit card. Payments made before 5 p.m. Pacific time on a business day post the same day. If you pay after 5 p.m. or on a weekend, the payment posts the next business day.
Idaho Power does not charge a fee if you pay from a bank account. If you use a debit or credit card, a third-party processor charges a fee — usually around 2.5% of your bill, though the exact amount appears before you confirm the payment. The website shows you the fee upfront, so you can decide whether to use your card or switch to a bank account payment instead.
Your payment confirmation appears on screen when ready. Write down the confirmation number or take a screenshot, especially if you are paying because your bill is overdue. That number proves you paid on time if there is ever a dispute.
Setting up automatic payments from your bank account
Automatic payments are the most reliable way to never miss a due date. You authorize Idaho Power to withdraw the bill amount from your checking or savings account on a date you choose — usually a few days before the due date. Once it is set up, the payment happens every month without you having to log in or write a check.
To set up automatic payments, log into your account at idahopower.com, go to the payment settings, and select "Automatic Bank Draft." You will need your bank's routing number and your account number. Idaho Power will ask you to confirm the first payment, which usually takes one to two business days to process. After that, payments happen automatically.
There is no fee for automatic bank account payments. If your bill amount changes month to month (as most utility bills do), Idaho Power withdraws whatever the current bill is. If you need to pause or cancel automatic payments, you can do that online or by calling 1-800-635-5406 at least five business days before the next scheduled payment.
Paying by phone
Call Idaho Power's payment line at 1-800-635-5406 during business hours. A representative will ask for your account number and the amount you want to pay. You can pay with a bank account or debit card over the phone. Payments made before 5 p.m. Pacific time on a business day post the same day.
Phone payments may carry a fee. The fee depends on whether you use a bank account or card and which payment processor handles the call. The representative will tell you the fee before you authorize the payment, so you can decide whether to proceed or try a different method.
Ask for a confirmation number before you hang up. Write it down or save the email confirmation if Idaho Power sends one. If your service is at risk of being shut off, mention that to the representative — they may be able to note your account so the company knows you are working to catch up.
Mailing a check or money order
If you prefer to pay by mail, write a check or money order for the amount shown on your bill. Write your account number on the check. Mail it to the address printed on your bill — Idaho Power's mailing address changes depending on which region you are in, so always use the address on your statement rather than looking one up online.
Mail your payment at least five business days before your due date. The post office can take several days to deliver, and Idaho Power needs time to process the check once it arrives. If you mail a payment too close to the due date and it arrives late, you will be charged a late fee even though you sent it on time. If you are cutting it close, use online payment or call instead.
Keep a copy of your check or a photo of the front and back for your records. If there is ever a question about whether Idaho Power received your payment, you have proof of when you sent it.
What happens if your payment is late
Idaho Power charges a late fee if your payment does not arrive by the due date shown on your bill. The fee is a percentage of your bill amount. If you are more than a few days late, the company may send a notice warning that service will be shut off if you do not pay within a certain number of days — usually 10 to 15 days from the notice date.
If your service is shut off, you have to pay the full overdue balance plus a reconnection fee to get power restored. The reconnection fee is separate from the late fee and can be substantial. This is why choosing a payment method you will actually use matters more than which one is cheapest — a missed payment costs far more than any fee you might avoid.
If you know you will be late, call Idaho Power at 1-800-635-5406 as soon as possible. Explain your situation. The company sometimes works with customers to set up a payment plan or delay the shutoff notice while you arrange the money. Calling before you miss a payment is always better than calling after.
Comparing Idaho Power's payment methods
| Method | Speed | Fee | Best for |
|---|---|---|---|
| Online (bank account) | Same day if before 5 p.m. Pacific | None | Paying a few days before due date |
| Online (debit/credit card) | Same day if before 5 p.m. Pacific | Around 2.5% of bill | Emergency payments when you need speed |
| Automatic bank draft | Scheduled date you choose | None | Never missing a due date |
| Phone (bank account) | Same day if before 5 p.m. Pacific | Varies | Paying without internet access |
| Mail (check) | 5 to 10 business days | None | Keeping a paper record |
Frequently Asked Questions
Can I pay my Idaho Power bill in person at a store?
Idaho Power does not operate walk-in payment centers. You can pay online, by phone, by mail, or through automatic bank draft. Some third-party bill payment services may accept Idaho Power payments in person, but you would need to check with those services directly and may face additional fees.
What if I pay online but the payment doesn't show up on my account?
Online payments usually post within one business day. If more than one business day has passed and you do not see the payment, log back into your account and check the payment history. If it is not there, call 1-800-635-5406 with your confirmation number. The representative can look up the payment and tell you its status.
Can I change my automatic payment date if my paycheck comes on a different day?
Yes. Log into your account at idahopower.com, go to payment settings, and change the date. You need to make the change at least five business days before the next scheduled payment. If you need to change it sooner, call 1-800-635-5406.
Is there a way to pay without giving Idaho Power my bank account number?
Yes. You can pay online with a debit or credit card, by phone with a card, or by mailing a check. All three methods avoid sharing your full bank account details with Idaho Power, though card payments carry a fee and mailed checks take longer to process.
What should I do if I cannot pay my full bill by the due date?
Call Idaho Power at 1-800-635-5406 and explain your situation. The company may be able to set up a payment plan, delay the late notice, or connect you with resources that help with utility bills. Calling before you miss the due date gives you more options than calling after.