Retirement Healthcare Cost Calculator

Healthcare is one of the largest and least predictable costs in retirement, and it changes shape at 65

Retirement healthcare spending is not one steady cost — it splits into two genuinely different phases with very different economics. Before age 65, anyone without continued employer coverage has to purchase insurance entirely on their own, typically at a much higher effective cost than an employer-subsidized plan. At 65, Medicare eligibility begins, restructuring the cost into premiums, supplemental coverage, and out-of-pocket spending under a more standardized federal framework.

This calculator projects both phases separately, because lumping them together into a single average obscures exactly why retiring before 65 is so much more expensive on the healthcare side specifically — a cost that surprises many people who focus their retirement planning primarily on income replacement without pricing this piece separately.

The bridge years before Medicare are often the most expensive healthcare period in retirement

Someone retiring at 60 or 62 faces three to five years — or more — without employer-subsidized coverage and without Medicare eligibility, needing to fill that gap through COBRA continuation of a former employer’s plan, an ACA marketplace plan, or a spouse’s employer coverage if available.

COBRA typically requires paying the full premium the employer previously subsidized, often the most expensive of the bridge options, and is time-limited to a maximum continuation period. ACA marketplace plans vary substantially by state and by income — subsidies can meaningfully reduce the cost for some retirees depending on their reported income during those years, which creates an interesting planning consideration around how retirement account withdrawals are timed and reported during the bridge period. Whichever option applies, this bridge period is frequently the single most expensive healthcare stretch of an entire retirement, precisely because it carries none of Medicare’s cost structure.

IRMAA quietly links a two-year-old tax return to today’s Medicare premium

The Income-Related Monthly Adjustment Amount adds a surcharge to standard Medicare Part B and Part D premiums once income exceeds set thresholds, and the surcharge is based on a tax return from two years prior rather than current income — a timing detail with real planning consequences.

This means a large one-time taxable event — a Roth conversion, a large capital gain from selling an investment or a business, or even a large RMD in a specific year — can trigger a higher Medicare premium specifically two years later, sometimes catching retirees off guard when a premium unexpectedly jumps well after the income event that caused it. Anyone planning a significant Roth conversion or asset sale around the years surrounding Medicare eligibility should factor this two-year lag into the timing decision, since spreading a large conversion across several smaller years can sometimes avoid crossing an IRMAA threshold that a single large conversion would trigger.

Why healthcare-specific inflation matters more than a general inflation figure

Healthcare costs have historically outpaced general consumer price inflation over long periods, driven by a combination of medical technology costs, labor-intensive care delivery, and administrative complexity that broader inflation measures do not fully capture.

Projecting healthcare costs using a general inflation assumption — the same rate used for a groceries or housing projection — will tend to understate what healthcare will actually cost decades into the future. Using a healthcare-specific inflation rate, generally set higher than a broad CPI figure, produces a projection more consistent with the actual historical trend in this specific spending category, even though no rate assumption can guarantee future costs precisely.

What this calculator deliberately leaves out

Long-term care — extended nursing home stays or substantial in-home care assistance — is a separate and potentially much larger cost that neither traditional Medicare nor most employer retiree health plans cover beyond limited short-term stays following a hospitalization. This is a distinct planning question, typically addressed through long-term care insurance, a hybrid life insurance policy with long-term care riders, or a deliberate self-funding strategy, rather than folded into routine premium and out-of-pocket projections.

This calculator also does not account for the possibility of major, unplanned medical events beyond the routine out-of-pocket figure entered — it is intended as a baseline projection for expected, ongoing costs rather than a comprehensive worst-case healthcare budget.

Building healthcare cost into the broader retirement income plan

Because healthcare costs, particularly during the bridge years, can be substantial and front-loaded relative to a smooth retirement income assumption, it is worth treating this projection as a distinct line item rather than folding it into a single average annual expense figure used elsewhere in retirement planning.

The retirement income gap calculator is a natural place to incorporate this figure once projected, adding it into desired annual spending during the specific years it applies rather than smoothing it evenly across an entire retirement. And for anyone still weighing exactly when to retire, seeing how dramatically the bridge-year cost changes between retiring at, say, 62 versus 65 is often a meaningful and underappreciated factor in that specific timing decision.