"...Most Americans underestimate the risk of developing a disability and needing long-term services and supports (LTSS). Using microsimulation modeling, we estimate that about half (52%) of Americans turning 65 today will develop a disability serious enough to require LTSS, although most will need assistance for less than two years. About one in seven adults, however, will have a disability for more than five years. On average, an American turning 65 today will incur $138,000 in future LTSS costs, which could be financed by setting aside $70,000 today. Families will pay about half of the costs themselves out-of-pocket, with the rest covered by public programs and private insurance. While most people with LTSS needs will spend relatively little on their care, about one in six (17%) will spend at least $100,000 out-of-pocket for future LTSS...."

U.S. Dept. of Health & Human Services