A catastrophic insurance program could improve the way long-term services and supports are financed. The program would require enrollees who need care to wait a few years before they could collect benefits, but then it would provide those benefits as long as necessary. Our modeling results show that such a program could reduce Medicaid spending and provide financial relief to hard-pressed states. It could also reduce out-of-pocket spending for families facing catastrophic costs and fund new services and supports. By setting aside funds to cover future spending, a catastrophic insurance program could also raise national saving.