Where to pay your California Water Service bill
California Water Service (Cal Water) gives you four main ways to pay: online through their website, by phone, by mail, or in person at an authorized payment location. The fastest and most convenient option for most people is online payment through their customer portal at calwater.com. You'll need your account number (found on your bill) and login credentials, which you can set up if you don't already have them.
If you prefer to pay by phone, call the customer service number on your bill — it varies by district. Payment by phone is processed immediately, though you may be charged a convenience fee. Mailing a check or money order takes longer (typically 7 to 10 business days to reach Cal Water), so mail your payment well before the due date shown on your bill to avoid a late fee.
Some Cal Water districts accept in-person payments at local offices or authorized retailers. Check your bill or call your district office to find the nearest location and their hours. Not all districts offer this option, so confirm before making a trip.
Key Takeaways
- Online payment through calwater.com is the fastest method and requires only your account number and login information.
- Phone payments are processed immediately but may include a convenience fee that varies by district.
- Mailed payments take 7 to 10 business days, so send them at least two weeks before your due date to avoid late fees.
- Your bill shows the due date, late fee amount, and the customer service number for your specific Cal Water district.
- Setting up automatic payments through your bank or Cal Water's autopay program ensures you never miss a due date.
Setting up automatic payments to avoid missed due dates
Automatic payment is the easiest way to ensure your bill is paid on time every month. Cal Water offers two autopay options: you can authorize Cal Water to withdraw money from your bank account on a set date each month, or you can set up automatic payments through your own bank's bill pay system.
To enroll in Cal Water's autopay directly, log into your account on calwater.com, go to the payment section, and select the autopay option. You'll provide your bank account information and choose the date you want the payment withdrawn each month. Most people choose a date shortly after they receive their bill or shortly before the due date.
If you prefer to use your bank's bill pay instead, set up Cal Water as a payee in your banking app or online portal and schedule the payment for the due date shown on your bill. This method gives you more control over the exact payment date and amount, and the payment comes from your bank rather than Cal Water directly.
Understanding your bill's due date and late fees
Your Cal Water bill shows a specific due date, usually 20 to 30 days from the bill date. Payment is considered on time if Cal Water receives it by 5 p.m. on the due date. If you pay online or by phone, the payment is received immediately. If you mail a check, it must arrive by the due date — not be postmarked by that date — so factor in mail delivery time.
Late fees vary by district but typically range from $10 to $25 for a payment received after the due date. If your payment is more than 30 days late, Cal Water may add additional penalties or begin the process to shut off your water service. If you know you'll be late, call your district office before the due date to discuss your options; some districts offer short extensions or payment plans for customers facing hardship.
If your water service is shut off for non-payment, you'll owe the late fees, reconnection fees (which can be $100 or more), and sometimes a deposit before service is restored. Reconnection can take several business days, so paying on time is far less expensive than dealing with a shutoff.
Paying a past-due balance or setting up a payment plan
If you have fallen behind on your Cal Water bill, contact your district office as soon as possible. Cal Water does not automatically offer payment plans, but many districts will work with you to arrange one if you call before your account is referred for shutoff. The sooner you contact them, the more options you typically have.
When you call, have your account number ready and be prepared to explain your situation. Ask specifically whether your district offers a payment plan, what the terms are, and whether there are any fees for setting one up. Some districts may require a down payment or a commitment to pay a certain amount each month in addition to your current bill.
If you are experiencing financial hardship, ask whether your district participates in any assistance programs. Some Cal Water districts offer low-income rate discounts or emergency assistance funds, though these vary widely by location. Your district office can tell you what programs are available in your area.
What to do if you don't receive your bill or can't find your account number
If you haven't received your bill in the mail, log into your account on calwater.com to view it online. Your account number appears at the top of the bill and in your online portal. If you can't log in, use the "Forgot Password" or "Forgot Username" option on the login page.
If you don't have an online account yet, create one at calwater.com using your service address and the last four digits of your phone number or Social Security number. Once you're logged in, you can view your current and past bills, see your payment history, and make a one-time payment without setting up autopay.
If you still can't locate your account number or access your account, call your Cal Water district office. The number is on any bill you have received, or you can find it on calwater.com by entering your city or zip code. Customer service can look up your account by address and help you make a payment over the phone.
Paying your bill if you're moving or closing your account
If you're moving and need to close your Cal Water account, contact your district office at least three business days before your move-out date. You'll need to provide a final meter reading or schedule a final reading appointment. Cal Water will calculate your final bill based on your usage through the move-out date.
Pay your final bill by the due date shown on it, just as you would any other bill. If you overpaid (for example, if you had a deposit on file), Cal Water will refund the difference. If you underpaid or owe additional charges, you'll receive a bill for the remaining balance. Make sure Cal Water has your forwarding address so you receive the final bill and any refund check.
If you're taking over service at a new address, you can start a new account online at calwater.com or by calling your local district office. You may be required to pay a deposit, which varies by district and your credit history. Ask about deposit requirements when you set up your account.
Frequently Asked Questions
Is there a fee to pay my Cal Water bill online?
Cal Water does not charge a fee for online payments made through calwater.com. However, if you pay by phone or use a third-party payment processor, a convenience fee may apply. Check your bill or call your district office to confirm whether a fee applies to your payment method.
Can I pay my Cal Water bill with a credit card?
Cal Water's website accepts debit cards and bank account transfers, but credit card payments typically incur a convenience fee. Some third-party payment processors allow credit card payments for water bills, but they charge their own fees. For the lowest cost, pay directly from your bank account.
What happens if I pay late?
Late fees are added to your account if payment is received after the due date. If your account remains unpaid for 30 days or more, Cal Water may shut off your water service and charge a reconnection fee. Contact your district office immediately if you're unable to pay on time.
How do I know if my payment was received?
If you paid online or by phone, you'll receive a confirmation number immediately. Log into your account on calwater.com to see your payment reflected in your account history within one business day. If you mailed a check, allow 7 to 10 business days for it to be processed and appear in your account.
Can I change my due date?
Cal Water does not allow customers to change their billing due date. However, you can choose the date your autopay payment is withdrawn each month, as long as it's on or before your bill's due date. Contact your district office if you have questions about your specific due date.