ABSTRACTObjectives: This study investigated the estate planning and advance care planning (ACP) of older adults diagnosed with Alzheimer's disease (AD) for the presence of (1) a valid will, (2) a durable power of attorney for health care, and (3) a living will.Method: We analyzed 10,273 adults aged 65 and older from the 2012 Health and Retirement Study (HRS) using multilevel logistic regression.Results: We found that a diagnosis of AD was significantly associated with the ACP variables. Older adults with AD were more likely to assign a durable power of attorney for health care and have a written living will than older adults without an AD diagnosis. However, we found no significant association between a diagnosis of AD and having a valid will. These findings were robust when adjusting for demographic and socioeconomic variables. Other factors decreased engagement in estate planning and ACP, including lower socioeconomic status, being male, and being a minority.Conclusion: Our findings suggest that a diagnosis of AD is associated with more engagement in ACP for individuals and their families, but important barriers exist for people with fewer resources.