Billing system serves a variety of different functions in addition to serving as a record of transactions. Romblon Electric Cooperative, Inc. (ROMELCO) is the exclusive provider of electricity services to the province of Romblon with offices located in the municipalities of San Fernando, Cajidiocan, Magdiwang, Banton and Corcuera. As ROMELCO's number of consumers grow, there are perceived issues in the preparation of billing statements. These perceived issues may include the delay in the preparation of statements of accounts. There are instances where the consumer is not aware of the schedule of payment because they were not able to receive their electric billing statement caused by delayed distribution of bills. To improve the delivery of electric bills, the proponents designed and developed web-based electric billing system with the SMS notification. The developed system will help the consumer access and view their electric bills, and it also provides SMS notifications as an alternative way of notifying or distributing information to the consumers. In developing the web application, the researchers used agile model, as it is flexible with system requirements. The system was evaluated by a total of thirty respondents (30) consisting of 29 consumers and the admin from ROMELCO Magdiwang using ISO 25010:2011.