What City Public Service (CPS) bills cover and where to pay

City Public Service is the municipal utility serving San Antonio, Texas. Your CPS bill covers electricity and natural gas used at your address. You can pay online through the CPS website, by phone, by mail, or in person at a payment location — and the method you choose affects when your payment posts and whether you avoid a late fee.

CPS bills arrive monthly and show your usage, rate charges, and the due date (usually 20 days after the bill date). The bill also lists your account number, which you will need for any payment method except in-person payment at a CPS office.

Late payments trigger a reconnection fee if service is shut off, so knowing your actual due date and which payment method reaches CPS fastest matters more than knowing the bill amount itself.

Key Takeaways

  • CPS accepts online payments through their website with no fee, and the payment posts the same day if submitted before 5 p.m. on a business day.
  • Mail payments take 7 to 10 business days to reach CPS, so you must mail them well before the due date to avoid a late fee.
  • Phone payments and in-person payments at CPS offices or authorized retailers post immediately, but phone payments may carry a third-party processing fee.
  • Your account number appears on your bill and is required for online and phone payments, but not for payments made in person with your bill in hand.
  • If your service is disconnected for non-payment, you will owe a reconnection fee on top of the unpaid balance before CPS restores power or gas.

Paying online through the CPS website

The fastest and cheapest way to pay is through the CPS website at cpsenergy.com. Click "Pay My Bill" and enter your account number and ZIP code, or log into your account if you have already created one. You can pay with a debit card, credit card, or bank account transfer.

Payments submitted before 5 p.m. Central Time on a business day post the same day. Payments submitted after 5 p.m. or on weekends and holidays post the next business day. There is no fee for online payments made directly through the CPS website.

If you set up an online account, you can also enroll in autopay, which withdraws your payment automatically on a date you choose each month. This removes the risk of forgetting a due date, though you should still review your bill each month to catch billing errors or unusual usage.

Paying by mail

Mail your payment to the address printed on your bill. Include your account number on the check or money order, and mail it at least 10 business days before the due date to account for postal delivery time. CPS receives mail at different locations depending on your service area, so use the address on your bill rather than searching online.

Payments are considered on time if they are postmarked by the due date, but CPS may not receive and post them for several more days. To be safe, mail payments 10 to 14 days early. If you are cutting it close, use online or phone payment instead.

Paying by phone

Call CPS customer service at 210-353-2222 to pay by phone. Have your account number and a debit card or credit card ready. The payment posts immediately, but CPS uses a third-party processor that may charge a convenience fee (typically $2 to $5 depending on the processor). Ask about the fee before you authorize the payment.

Phone lines are open Monday through Friday, 7 a.m. to 7 p.m. Central Time, and Saturday 8 a.m. to 5 p.m. Central Time. If you call outside these hours, you can use the automated system to make a payment, though you will still pay the convenience fee.

Paying in person

You can pay at a CPS office or at authorized payment locations throughout San Antonio, including many grocery stores and check-cashing services. Bring your bill or account number and cash, check, or debit card. In-person payments post immediately and carry no fee.

CPS offices are located at 145 Navarro Street (downtown) and other locations. Hours vary by location, so check the CPS website for the office nearest you and its hours before you go. Authorized retailers may have different hours than CPS offices.

What to do if you cannot pay by the due date

Contact CPS before your bill becomes overdue. CPS offers a deferred payment plan that lets you split your balance across multiple months without a late fee, though you must request it before the due date passes. Call 210-353-2222 to discuss options with a representative.

If your service is disconnected for non-payment, you will owe the unpaid balance plus a reconnection fee (the amount varies) before CPS restores service. Reconnection can take 24 to 48 hours even after payment is received. Avoiding disconnection by contacting CPS early is far cheaper than paying reconnection fees.

CPS also has programs for customers with low income or hardship. Ask about budget billing, which spreads your annual costs evenly across 12 months, or energy assistance programs that may help cover bills. These are separate from payment plans and may reduce the amount you owe.

Understanding your account number and bill information

Your account number is a unique identifier for your service address and appears on every bill. It is usually 7 to 10 digits and is printed near the top of your bill. You need this number for online and phone payments, but not for in-person payments if you bring your physical bill.

Your bill also shows the service period (the dates your meter was read), your usage in kilowatt-hours (electricity) or therms (natural gas), and the rate per unit. The due date is printed clearly, usually 20 days after the bill date. If you lose your bill, you can look up your account number on the CPS website or call customer service.

Frequently Asked Questions

What happens if I pay after the due date?

CPS charges a late fee if payment is not received by the due date. The fee is a percentage of your bill (typically 1.5% to 2%). If you remain unpaid for 30 days after the due date, CPS may disconnect your service. Once disconnected, you owe the unpaid balance, the late fees, and a reconnection fee before service is restored.

Can I pay someone else's CPS bill?

Yes, you can pay another person's bill online or by phone if you have their account number. You can also pay in person at a CPS office or authorized retailer. Online and phone payments require the account number; in-person payments require the bill or account number. The account holder should contact CPS if they want to authorize a third party to make regular payments.

Is there a fee for paying online?

No. Payments made directly through cpsenergy.com carry no fee. However, if you use a third-party payment service or app (not the official CPS website), that service may charge a fee. Always pay through the CPS website or call CPS directly to avoid unexpected charges.

How long does it take for a mailed payment to post?

Mail typically takes 7 to 10 business days to reach CPS after you drop it in the mailbox. CPS considers payments on time if postmarked by the due date, but you should mail at least 10 to 14 days early to account for delays. If you are close to the due date, use online or phone payment instead.

What if I want to set up automatic payments?

Create an account on the CPS website and enroll in autopay. You can choose the payment date each month and the payment method (bank account or card). Autopay removes the risk of late payments, but you should still review your bill each month to catch errors or unusual charges before the payment is withdrawn.