Okay, I'm confused. False? But True? You HAVE to have a HDHP to open an HSA. But HSA can live forever once that requirement is met. In my case the primary reason my CPA recommends an HSA is not to pay medical expenses now. We hope to retire in 3 years or so, which will be 3 years before we qualify for Medicare. We should have very little tax liability in those years if any......unlike now, so we are saving money today to spend then. When we get on Medicare, if things remain the way they are now, I plan to assign my benefit to an HMO like my mom did, and the coverage has zero deductible.