What SD1 Bill Pay is and how to use it
SD1 Bill Pay is Kentucky's online system for paying water and sewer bills to your city utility. Instead of mailing a check or paying in person, you log in to the SD1 portal, enter your account number, and submit payment directly from your bank account or debit card. The system is run by individual Kentucky cities — not a single statewide office — so the exact steps and payment methods vary slightly depending on which city supplies your water.
The main reason to use SD1 is speed and record-keeping. Your payment posts immediately or within one business day, and you get a confirmation number you can save or print. You also avoid late fees by paying on time without relying on mail delivery. If you need to dispute a charge or prove you paid, that confirmation number is your proof.
SD1 is free to use for bank account payments. Some cities charge a small fee — usually $2 to $3 — if you pay with a debit or credit card instead. Check your city's specific rules before you choose your payment method.
Key Takeaways
- SD1 is your city's online water bill payment portal, and you access it through your city's utility website, not a single Kentucky state site.
- You will need your account number (printed on your paper bill) and online login credentials, which you create the first time you visit.
- Payments from a bank account are free; debit or credit card payments usually cost $2 to $3 depending on your city.
- Your payment posts within one business day, and you receive a confirmation number immediately that serves as your receipt.
Finding your city's SD1 login page
SD1 is not a single website you visit once. Each Kentucky city runs its own version, so you need to find your specific city's utility payment portal. Start by looking at your water bill — it will show your city's name and usually a website or phone number.
Search online for "[Your City] Kentucky water bill pay" or "[Your City] utility payment online". Most cities link to their SD1 portal from the main utility or public works page. If you cannot find it, call your city's water department directly — the number is on your bill — and ask for the online payment link. They can also confirm whether SD1 is the system your city uses, since some smaller Kentucky cities use different platforms.
Once you find the portal, bookmark it so you do not have to search again next month.
Creating your account and logging in
The first time you visit your city's SD1 portal, you will need to create a login. Have your water bill in front of you — you will need your account number, which appears on the front or top of the bill. You will also need a valid email address and a password you create yourself.
After you enter your account number and email, the system will ask you to verify your identity. This usually means answering a security question or confirming your address. Once verified, you set your password and log in. From then on, you use that same email and password every time you pay.
If you forget your password, use the "Forgot Password" link on the login page. The system will send a reset link to your email. If you cannot access your email or do not remember your account number, call your city's water department and they can help you regain access.
How to submit a payment through SD1
After you log in, the portal shows your current bill amount and due date. Click the button to make a payment — it is usually labeled "Pay Now" or "Make a Payment". The system will ask you to choose your payment method: bank account or debit/credit card.
If you choose bank account, enter your routing number and account number. You can find these on the bottom left of any check you write. The system does not charge a fee for this method. If you choose debit or credit card, enter the card number, expiration date, and CVV. Your city will charge a processing fee, usually $2 to $3, which is added to your total.
Enter the amount you want to pay. You can pay the full bill, a partial amount, or more than the bill if you want to prepay. Review the total one more time, then submit. The system will show a confirmation number immediately — write this down or take a screenshot.
What happens after you submit payment
Your payment posts to your account within one business day. Most payments show up the same day you submit them, especially if you pay before 5 p.m. on a weekday. If you pay on a weekend or holiday, expect the payment to post the next business day.
You will receive an email confirmation at the address you used to create your account. This email includes your confirmation number, the amount paid, and the date it posted. Save this email or print it — it is your receipt and proof of payment. If your city ever claims you did not pay, this confirmation is what you show them.
Your next bill will reflect the payment and show your new balance. If you paid more than you owed, the overpayment carries forward as a credit on your next bill, or you can request a refund by calling your water department.
Avoiding common SD1 payment mistakes
The most common mistake is paying the wrong amount. Before you submit, double-check that you are paying the current bill amount, not an old bill or a partial amount you did not intend. The portal shows your balance clearly, so take five seconds to verify.
Another mistake is using a debit or credit card without realizing the fee. If you have a choice, pay from your bank account to avoid the $2 to $3 charge. Over a year, that adds up.
Do not assume your payment posted just because you received a confirmation number. Check your next bill or log back into SD1 a day or two later to confirm the payment actually went through. In rare cases, a technical glitch can prevent posting even though you got a confirmation. If your payment does not show up within two business days, call your water department with your confirmation number and they can investigate.
Finally, do not wait until the due date to pay online. Pay a few days early so that if there is any delay, you still avoid a late fee. Late fees in Kentucky cities typically range from $5 to $25 depending on your city, so paying early is worth the small effort.
What to do if you cannot use SD1
If you do not have internet access or prefer not to pay online, you have other options. You can mail a check to the address on your bill — allow 7 to 10 days for it to arrive and post. You can also pay in person at your city's utility office during business hours; most offices accept cash, check, or card payments at the counter.
Some Kentucky cities also offer automatic bank draft, where your bill is paid automatically from your bank account on the due date each month. This removes the need to remember to pay and avoids late fees. Ask your water department whether this option is available in your city.
If you are struggling to pay your bill, contact your city's water department and ask about payment plans or hardship programs. Many cities offer extended payment schedules or bill assistance for households with low income. These programs exist, but you have to ask — they are not automatic.
Frequently Asked Questions
Can I set up automatic payments through SD1?
Some Kentucky cities allow automatic recurring payments through their SD1 portal, but not all. Log into your account and look for an "Autopay" or "Recurring Payment" option. If you do not see it, call your water department and ask whether they offer automatic bank draft as an alternative.
What if I pay too much by accident?
The overpayment becomes a credit on your next bill. You will see it listed as a credit balance when you log in or when your next bill arrives. If you want a refund instead of a credit, call your water department with your confirmation number and they can process a refund to your original payment method.
Is SD1 safe for entering my bank account information?
SD1 uses encryption to protect your information, the same technology banks use. Your bank account and routing numbers are not stored after your payment posts — they are deleted. That said, only use SD1 on a secure internet connection, not public WiFi, and never share your login credentials with anyone.
Why does my city charge a fee for credit card payments?
Credit card companies charge the utility a processing fee of 2 to 3 percent every time a card is used. Your city passes this fee to you instead of absorbing it. Bank account payments have no such fee, which is why they are free.
What if I need to dispute a charge on my water bill?
Contact your water department directly — do not dispute it through your bank. Explain what you think is wrong with the charge, and ask for an explanation or adjustment. If the bill is genuinely incorrect, they can issue a credit. If you dispute it through your bank instead, the utility may shut off your service while the dispute is being resolved.