Can I Add My Girlfriend To My Health Insurance In California? 
Technically , you have to be domestic partners . Here is a link to the definition of domestic partner in CA along as well as the registry ... WEBSITELINK Having said that , I do n't think there 's any particular advantage to having your girlfriend on your plan . You do n't get a better price , plus you 'd both have to meet your individual deductibles . If you are , in fact , domestic partners , there may be some subsidy implications . But again , there 's not much that you 'll gain by being on the same policy together . 