Can My Brother Add Me To His Health Insurance? 
Your brother can only add you to his health insurance if he claims you as a dependent on his taxes . If he does n't , then he would n't be able to add you to his plan . Under the Affordable Care Act , health insurance plans are guaranteed issue , meaning you ca n't be declined for coverage due to a pre-existing condition or other health-related issue . So if your brother ca n't claim you as a dependent and a spouse does n't have a group plan through the employer , you will need to look at an individual policy - these can be bought on or off the health insurance exchanges . 