Unlike many other developed nations, the U.S. has no system that protects its residents against the high costs of long-term care, which many people will need as they age. Medicaid coverage kicks in only after families have exhausted their resources. Until then, families bear the financial and caregiving burden of LTC themselves. In the absence of a national system, several states have considered or passed programs that offer some support for LTC. Many peer nations have more comprehensive systems to spread the risk for LTC costs across their population, through social insurance or other mechanisms. This Issue Brief reviews international models of financing LTC, as well as recent state efforts, to help U.S. policymakers design a program that can meet the LTC challenges of an aging population.