Estimating your healthcare costs in retirement

Every year a headline announces that a retiring couple will need some enormous sum — often cited around $300,000+ — for healthcare in retirement. The number is real but easy to misread: it's not a lump sum you write a check for, and it usually excludes long-term care entirely. Understanding what actually drives retirement healthcare spending lets you plan for it as a series of manageable annual costs rather than a terrifying abstraction — and lets you fund it deliberately instead of hoping.

What the big number does and doesn't include

Those widely cited estimates typically cover Medicare premiums (Parts B and D, plus a supplement or Advantage plan), plus out-of-pocket costs like copays, coinsurance, and prescriptions, across a couple's remaining lifetimes. Crucially, most of these headline figures do NOT include long-term care — nursing homes, assisted living, or in-home help — which is the single largest healthcare wildcard in retirement and can dwarf everything else. So the scary number is really the 'routine' healthcare estimate, before the biggest risk.

Break it into three buckets

• Premiums: Medicare Part B (a set monthly amount, higher for high earners via IRMAA), Part D drug coverage, and either a Medigap supplement or a Medicare Advantage plan. This is your predictable, recurring cost.
• Out-of-pocket care: deductibles, coinsurance, copays, dental, vision, and hearing (which Original Medicare doesn't cover). Variable, but plannable with a buffer.
• Long-term care: the wildcard. Most people will need some; a minority need years of expensive care. This deserves its own separate plan.

The IRMAA surprise for higher earners

If your income in retirement is comfortable, your Medicare premiums can be significantly higher than the standard amount. The Income-Related Monthly Adjustment Amount (IRMAA) adds surcharges to Parts B and D above certain income thresholds, based on your tax return from two years prior. A big Roth conversion, a home sale, or high RMDs can push you into a surcharge tier. Model IRMAA as part of your retirement healthcare estimate if your income will be above the thresholds.

How to fund it

1. Build an HSA before retirement: it's the ideal retirement healthcare fund — tax-free growth, and after 65 you can pay Medicare Parts B, D, and Advantage premiums (not Medigap) tax-free from it.
2. Keep a healthcare buffer in your withdrawal plan: earmark a portion of savings for the variable out-of-pocket costs so a bad year doesn't force asset sales at a bad time.
3. Plan the Medicare bridge separately if retiring before 65 (see the early-retiree bridge fund article) — pre-65 coverage is a different, often larger, expense.
4. Address long-term care deliberately: self-fund with earmarked assets, buy long-term-care or hybrid insurance, or plan around Medicaid — but don't leave it out of the estimate.
5. Re-shop Medicare Part D and Advantage plans every fall — the wrong plan quietly adds hundreds a year.

The bottom line

Retirement healthcare isn't a single six-figure bill — it's premiums plus out-of-pocket costs (roughly $12,000–$15,000 a year for a couple), a possible IRMAA surcharge if your income is high, and a long-term-care wildcard the headline numbers usually omit. Break it into those buckets, fund the routine part with an HSA and a healthcare buffer, plan the pre-65 bridge and long-term care separately, and the scary number becomes a set of line items you can actually manage.