As we sit back and ponder all this, an interesting option occurs. Suppose we fully funded our HSA and invested the money in low-cost index funds? Then we’d pay our actual medical expenses out-of-pocket, carefully saving our receipts, while letting the HSA grow and compound tax-free over the decades. In effect, we’d have a Roth IRA in the sense that withdrawals are tax-free and a regular IRA in the sense that we get to deduct our contributions to it. The best of both worlds. If we ever needed the money for medical expenses, it would still be there. But if not, it would grow tax-free to aAs we sit back and ponder all this, an interesting option occurs. Suppose we fully funded our HSA and invested the money in low-cost index funds? Then we’d pay our actual medical expenses out-of-pocket, carefully saving our receipts, while letting the HSA grow and compound tax-free over the decades. In effect, we’d have a Roth IRA in the sense that withdrawals are tax-free and a regular IRA in the sense that we get to deduct our contributions to it. The best of both worlds. If we ever needed the money for medical expenses, it would still be there. But if not, it would grow tax-free to a potentially much larger amount....more