The fastest way to pay KU is online through their website or mobile app, which processes same-day if you pay before 5 p.m. central time on a business day
Kansas City Power & Light Company (KU) offers several payment methods, and the one you choose affects when your payment posts and whether you avoid late fees. Online payment through their website or the KU mobile app is the quickest route — your payment shows up the same business day if submitted before the 5 p.m. cutoff. By mail takes 7 to 10 business days. In-person payments at authorized locations post immediately but require you to travel.
Your bill shows a due date, not a payment date. KU considers a payment on time if it arrives by 5 p.m. on the due date, regardless of method. If you mail a check, post it at least a week early to account for delivery time. Late payments trigger a late fee — the amount varies but is shown on your bill — and if you miss payment for a set number of days (usually around 30), KU may disconnect your service.
Key Takeaways
- Pay online or through the KU mobile app before 5 p.m. central time on a business day to have your payment post the same day.
- Mailed checks take 7 to 10 business days to reach KU, so send them at least a week before your due date to avoid late fees.
- Your account number appears on your bill and is required for all payment methods except automatic bank draft.
- Set up automatic payments through your bank or KU's website to ensure you never miss a due date.
- If you cannot pay the full amount by the due date, contact KU before the due date to discuss a payment plan or hardship options.
Paying online through KU's website or app
Go to kcpl.com and select "Pay My Bill" from the homepage. You will need your account number (found on your bill) and either a debit card, credit card, or bank account information. Enter the amount you want to pay and the payment date. KU accepts same-day payments if you submit before 5 p.m. central time on a business day; payments submitted after 5 p.m. or on weekends post the next business day.
The KU mobile app works the same way and is available for iOS and Android. Search for "KU" or "Kansas City Power & Light" in your device's app store. Payments made through the app follow the same cutoff times as the website. Keep your confirmation number for your records — it proves the payment was submitted on time if a dispute arises later.
KU does not charge a fee for online payments made directly from a bank account. If you use a debit or credit card, KU passes through a processing fee (usually $1.50 to $3.00 depending on the card type). Check the fee before you confirm the payment.
Automatic payments from your bank account
Automatic payments remove the risk of forgetting a due date. You can set them up through KU's website or by calling their customer service line at 1-888-544-4852. KU will deduct the amount you specify on or around the due date each month. You choose whether to pay the full bill amount or a fixed amount you set yourself.
To enroll, you will need your account number and routing and account numbers from your bank. KU stores this information securely and uses it only for the automatic draft. You can change or cancel automatic payments anytime through your online account or by calling customer service. If you cancel, make sure you have another payment method in place so your bill does not go unpaid.
Automatic payments post within one to two business days of the draft date. If your bank account does not have sufficient funds on the draft date, the payment will fail and KU will treat it as a missed payment. Check your bank balance before the draft date to avoid overdraft fees and late charges.
Mailing a check or money order
Write your account number on the check or money order. Mail it to the address shown on your bill — KU's mailing address changes depending on which region you are in, so always use the address printed on your statement. Include the payment stub from your bill if possible; it helps KU match the payment to your account faster.
Mail takes 7 to 10 business days to arrive. Post your payment at least 10 days before the due date to be safe. If you mail it closer to the due date and it arrives late, KU will charge a late fee even though the delay was not your fault. Keep a copy of the check or a photo of the money order for your records.
If you need to confirm that KU received your mailed payment, log into your online account a few days after the expected arrival date and check your payment history. Payments usually appear within 2 to 3 business days of arrival at KU's office.
Paying in person at authorized locations
KU accepts in-person payments at their customer service centers and at authorized payment locations throughout Kansas and Missouri. Payments made in person post immediately to your account. Bring your account number and the payment amount in cash, check, or debit card. Credit cards are not accepted for in-person payments.
Find a nearby payment location by visiting kcpl.com and searching "pay in person" or by calling 1-888-544-4852. Hours vary by location. Some authorized retailers (grocery stores, pharmacies, check-cashing services) also accept KU payments; ask at the customer service desk. There is no fee for in-person payments.
What to do if you cannot pay by the due date
Contact KU before your due date if you know you cannot pay the full amount. Call 1-888-544-4852 and explain your situation. KU offers payment plans that spread your bill over multiple months, which can lower your monthly payment. You may also be may be able to access for hardship programs if you are experiencing financial difficulty — KU can explain what programs exist in your area and what information you will need to provide.
If you miss the due date, KU will add a late fee to your next bill. If you continue to miss payments, KU may issue a disconnection notice, usually after 30 days of non-payment. The notice gives you a deadline to pay or arrange a plan before service is shut off. Once disconnected, you will owe a reconnection fee in addition to the overdue balance.
Do not ignore a disconnection notice. Call KU immediately and ask about payment plans or hardship options. Many people can avoid disconnection by contacting KU before the deadline and showing willingness to pay.
Understanding your bill due date and grace periods
Your bill shows a specific due date. KU considers payment on time if it arrives by 5 p.m. on that date. There is no grace period — a payment that arrives on day 31 is late, even by one day. The only exception is if the due date falls on a weekend or holiday; in that case, the due date moves to the next business day.
Your bill also shows the meter read date (when KU measured your usage) and the bill date (when KU issued the bill). These are different from the due date. The due date is what matters for avoiding late fees.
Frequently Asked Questions
Can I pay my KU bill with a credit card online?
Yes, KU accepts credit cards on their website and mobile app. A processing fee of $1.50 to $3.00 applies depending on your card type. If you want to avoid the fee, pay directly from your bank account instead.
What happens if I pay after the due date?
KU adds a late fee to your next bill. The amount varies but is shown on your bill. If you continue to miss payments, KU may send a disconnection notice after about 30 days of non-payment.
How do I know if my online payment went through?
KU sends a confirmation number immediately after you submit payment online. Save this number. You can also log into your account a few hours later and check your payment history to confirm the payment posted.
Can I set up automatic payments for a partial amount instead of my full bill?
Yes. When you enroll in automatic payments, you can choose to pay a fixed amount each month instead of the full bill amount. This is useful if you want to spread payments across the month, but remember that any unpaid balance will carry over and may accrue interest.
What should I do if KU says they did not receive my mailed check?
Check your payment history online to see if the payment posted. If it did not appear after 10 business days, contact KU at 1-888-544-4852 with your check number and the date you mailed it. KU can investigate whether the check was received and lost or if it was never delivered.