In the United States, households that elect a high-deductible plan have the option of creating something better than a notional On My Own Account, which is only a mental account, after all. They can create something called a health savings account (HSA), contributions to which are tax-sheltered. Many employers try to encourage employees to choose the high-deductible (HD) plan by making contributions to the HSA for any employee who does so. Any money contributed to the HSA that is not spent at the end of the year simply rolls over to the next year and eventually just turns into a retirement
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