Healthcare Cost Projection
Healthcare cost projection is the process of estimating the total out-of-pocket medical and long-term care expenses a retiree will incur over the remainder of their life, incorporating Medicare premiums and cost-sharing, supplemental insurance costs, inflation in medical prices, and the probability-weighted costs of long-term care, used to determine how large a healthcare reserve must be funded within the retirement portfolio.
Healthcare is the most significant and least predictable expense category in U.S. retirement planning. Unlike housing or food costs, which are relatively stable and controllable, healthcare expenditures are subject to medical cost inflation historically running 1.5-2 times the general Consumer Price Index, vary enormously based on individual health status, are subject to potential policy changes in Medicare and Medicaid, and include the potentially catastrophic cost of long-term care — an expense that is not covered by Medicare except for short-term skilled nursing rehabilitation following a hospitalization.
Fidelity's widely cited annual healthcare cost estimate suggests that a 65-year-old couple retiring in 2024 can expect to spend an average of $315,000 in total healthcare expenses throughout retirement, assuming traditional Medicare Parts A and B, a Part D prescription drug plan, and supplemental Medigap coverage. This figure does not include the cost of long-term care. HealthView Services, which produces detailed actuarial projections of healthcare costs for retirees, consistently estimates total lifetime healthcare costs (including long-term care probability-weighting) for a 65-year-old couple in the range of $450,000-$600,000 depending on health status and geographic location.
A healthcare cost projection for retirement planning purposes should model several components separately. Medicare Part B and Part D premiums, which are income-tested through IRMAA (Income-Related Monthly Adjustment Amount) surcharges for higher-income retirees, are the most predictable component and can be estimated using current premium schedules adjusted forward by medical cost inflation. Supplemental insurance costs depend on the type of coverage chosen — Medigap policies (Medicare Supplement) versus Medicare Advantage — and vary by state and coverage level. Out-of-pocket costs for deductibles, copays, dental, vision, and hearing care not covered by Medicare should be modeled based on the retiree's expected healthcare utilization.
Long-term care costs represent the most uncertain component and deserve separate treatment. The probability of a 65-year-old requiring some form of long-term care during their lifetime is approximately 70%, but the distribution of costs is highly skewed: most care events are brief and modest in cost, while a small fraction require years of intensive care costing hundreds of thousands of dollars. Funding this risk through a dedicated insurance product, a hybrid life policy with long-term care riders, or a liquid reserve earmarked in the retirement plan requires explicit modeling of both the probability and the potential magnitude of the event.