Department of Water County of Kauai

Department of Water County of Kauai

Ko'u Wai
Customer Account Portal
Login with your credentials.

Due to enhanced payment security requirements, beginning June 1, 2026, our payment provider, Stripe, requires all customers to re-enter any saved credit card or bank account payment methods and re-establish any automatic bill payment settings currently set up with credit cards.

If these updates are not completed, automatic payments made with credit cards and one-time online payments will not process successfully after June 1, 2026.

Please note: automatic bill payments set up directly through the Department of Water using a bank account are not affected. Only automatic credit card payments configured through this online portal require action.

CAP is down at the moment. We apologize for any inconvenience and are working to restore service as soon as possible.

The Customer Account Portal will not be available through the weekend. Please check back on Sunday 4/21. Sorry for the inconvenience.

Forgot Password?
Register
Forgot login?
Some features of the Customer Account Portal are not compatible with Internet Explorer. It is recommended that a different web browser be used.
© 2026 Prithibi Customer Account Portal (CAP), v2.0.