HNW tax‑location moves

Some high earners are treating the Health Savings Account like a second retirement bucket, moving money out of future taxable withdrawals and into an account with tax-free medical spending. (finance.yahoo.com) The example circulating this week is a 57-year-old anesthesiologist with $1.4 million in a 401(k), where future required minimum distributions could lift taxable income and raise Medicare surcharges. Yahoo Finance said advisers are using that case to show how account location can change taxes later in retirement. (finance.yahoo.com) The move is not a direct rollover from a 401(k) into a Health Savings Account. Internal Revenue Service rules allow a one-time “qualified HSA funding distribution” from an individual retirement account into a Health Savings Account, and Publication 969 says the amount is capped by the annual Health Savings Account contribution limit. (irs.gov) For 2026, the Internal Revenue Service set the Health Savings Account limit at $4,400 for self-only coverage and $8,750 for family coverage, with an extra $1,000 catch-up contribution for each eligible person age 55 or older. Those limits are small next to a seven-figure 401(k), which is why advisers frame the tactic as tax-location planning, not a wholesale transfer. (irs.gov) The attraction is the tax treatment. Contributions can be deductible, investment growth can compound without annual tax, and withdrawals for qualified medical expenses are tax-free, which is why advisers often call the Health Savings Account the only account with all three tax breaks. (irs.gov, finance.yahoo.com) That matters most for households with large pretax balances. The Internal Revenue Service says required minimum distributions generally begin at age 73 for traditional individual retirement accounts and most workplace defined-contribution plans, and those withdrawals can stack on top of Social Security and other income. (irs.gov) Medicare adds another layer. Social Security says higher-income beneficiaries pay an income-related monthly adjustment amount on top of standard Part B and Part D premiums, and the 2026 premiums were released by the Centers for Medicare and Medicaid Services on November 14, 2025. (ssa.gov, cms.gov) Kiplinger’s reporting on affluent retirees put the same issue in broader terms: households that are comfortable but not ultra-wealthy often need advice on Roth conversions, withdrawal sequencing, and Medicare premium thresholds because much of their wealth sits in pretax accounts. The piece described these clients as the “middle wealthy,” a group often too complex for basic planning and too small for private-bank treatment. (kiplinger.com) The Health Savings Account strategy also has hard limits. Internal Revenue Service rules say you generally cannot contribute once you are enrolled in Medicare, and Medicare Part A can be retroactive for up to six months, which can create excess-contribution problems for people who wait too long to stop funding the account. (irs.gov, irs.gov) That is why advisers are pairing this example with a wider tax-diversification playbook: some money in pretax accounts, some in Roth accounts, and some in a Health Savings Account reserved for future medical bills. For clients staring at large balances in their late 50s and early 60s, the point is less about one account than about shrinking the tax bill that arrives later. (finance.yahoo.com, kiplinger.com)