It’s worthwhile to conduct due diligence on your HSA by assessing the following. Paired with high-deductible healthcare plans, health savings accounts help ease healthcare costs. HSAs are a triple tax-advantaged vehicle in the tax code, allowing for pretax contributions, tax-free compounding, and tax-free withdrawals for qualified medical expenses. However, few owners fund their HSAs to the maximum, and even fewer invest their HSA dollars outside a savings account.