For many older adults with disabilities, financial stability is elusive. For persons with onset of disability before later life, gaining and retaining employment, paying for and accessing health care, and negotiating social welfare programs and systems are difficult and worrisome challenges. This is also true for adults with disability onset in later life. Although work restrictions are not present, other age-based limitations appear, including lack of eligibility for services (e.g., personal attendants). Overall, financial stability among older adults with disabilities remains an unsolved social challenge. This paper assesses what is currently known about how and why older adults with disabilities become financially insecure.  Going forward, the research agenda should be to design and test policy and program interventions that can reduce financial hardships and improve the lives of older adults with disabilities.