Healthcare in Retirement Calculator

Q: What is the best HSA strategy for retirement healthcare?

Maximize HSA contributions ($4,400 self / $8,750 family in 2026, plus $1,000 catch-up at 55+), invest the funds in index funds, and pay current medical expenses out-of-pocket while saving receipts. This lets your HSA compound tax-free. After 65, HSA funds can be withdrawn for any purpose (paying income tax) or tax-free for qualified medical expenses.

Q: How does the ACA marketplace work for early retirees?

Early retirees can purchase health insurance through the ACA marketplace. Premium tax credits are available based on income relative to the Federal Poverty Level. In 2026, the FPL is approximately $16,300 for a single person plus $5,750 per additional household member. Below 400% FPL, premiums are capped on a sliding scale. Managing MAGI through Roth conversions and withdrawal strategies can significantly affect subsidy eligibility.

Q: Should I use COBRA or the ACA marketplace after retirement?

COBRA lets you keep employer coverage for up to 18 months but you pay the full premium plus 2% admin fee. The ACA marketplace may be cheaper with premium tax credits. Many retirees use COBRA initially to keep their doctors, then transition to ACA when COBRA expires. Compare COBRA cost vs ACA with subsidies for your income level.

Q: What healthcare costs does Medicare not cover?

Medicare has significant gaps: dental care ($1,000-$3,000+/year), vision exams and glasses, hearing aids ($2,000-$7,000/pair), and long-term care (nursing homes average $95,000-$110,000/year in 2026). Medicare also has no out-of-pocket maximum — Part B has 20% coinsurance indefinitely. Medigap supplemental insurance helps cover some gaps.

Estimate lifetime healthcare costs in retirement, calculate the pre-65 insurance gap before Medicare, and project your HSA growth with the triple tax advantage. Based on Fidelity's 2026 estimate of $365,000 for a couple.

Estimate total healthcare spending from retirement through end of life

Current age

Retirement age

Medicare starts at 65

Expected lifespan

Average: 79 (men), 83 (women)

Current health status

Affects cost multiplier

Chronic conditions

Diabetes, heart disease, COPD, etc.

Current annual healthcare spending

Premiums + out-of-pocket

Medical inflation rate

Historical average: 5-6%/year

Coverage type

—

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How to Use This Calculator

Lifetime Healthcare Cost tab

The default tab. Enter your current age, retirement age, and expected lifespan. The calculator estimates total healthcare spending from retirement through end of life, broken into pre-65 (no Medicare) and post-65 (Medicare) periods. Expand "More options" to adjust health status, chronic conditions, current spending, medical inflation rate (default 5.5%), and single vs couple coverage. Results are benchmarked against Fidelity's 2026 estimate of $365,000 for a 65-year-old couple.

Pre-65 Gap tab

For early retirees who retire before Medicare at 65. Enter your retirement age, COBRA monthly cost, and ACA marketplace premium estimate. The calculator computes your total pre-65 insurance cost, shows the COBRA-to-ACA-to-Medicare transition timeline, and estimates ACA premium tax credits based on your income relative to the Federal Poverty Level. Expand "More options" to adjust employer cost, COBRA duration, dependents, income, and state.

HSA Strategy tab

Project your HSA balance at retirement and see how many years of healthcare it covers. Enter your current age, current HSA balance, and HDHP coverage type. The calculator shows the power of the triple tax advantage (deductible contributions + tax-free growth + tax-free medical withdrawals) and compares HSA vs a taxable investment account.

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The Formula

Healthcare in retirement involves multiple cost layers that compound differently before and after Medicare eligibility:

Annual Healthcare Cost = (Base Spending + Chronic Condition Adder) × Health Multiplier

Year N Cost = Annual Cost × (1 + Medical Inflation Rate)^N

Pre-65 Annual = Year N Cost + Insurance Premium (COBRA or ACA)
Post-65 Annual = (Year N Cost × 20%) + Medicare Premiums + Medigap Premium

Total Lifetime = ∑ Pre-65 Annual Costs + ∑ Post-65 Annual Costs

HSA at Retirement = Current Balance × (1 + Return)^Years + ∑ Annual Contributions × (1 + Return)^(Years − N)
Years of Coverage = HSA Balance at Retirement ÷ Expected Annual Healthcare Cost

Medical inflation has averaged 5-6% per year over the past two decades — roughly double general inflation. This means healthcare costs double roughly every 13 years. A $6,000 annual cost at age 55 becomes $16,000+ by age 75 and $43,000+ by age 95.

Medicare covers approximately 80% of approved costs, but the remaining 20% plus premiums, dental, vision, hearing, and long-term care can still be substantial. Medigap or Medicare Advantage plans help cover the gap but add their own premiums.

Example

Maria and James — retiring at 60, covering the 5-year gap before Medicare

Maria (60) and James (60) plan to retire together. James has employer coverage costing $500/month for their share. COBRA would cost $2,100/month for couple coverage. They expect $60,000/year in retirement income from 401(k) withdrawals. Their current annual healthcare spending is $8,000 combined, and James has one chronic condition (Type 2 diabetes).

Lifetime Healthcare Cost tab

Retirement age60

Expected lifespan87

Pre-65 cost (5 years, no Medicare)$142,000

Post-65 cost (22 years, with Medicare)$385,000

Total lifetime healthcare cost$527,000

Average monthly cost$1,625/mo

Pre-65 Gap tab

Years without Medicare5 years (age 60 to 65)

COBRA cost (18 months)$37,800

ACA marketplace cost (42 months)$33,600

Monthly ACA subsidy$200/mo

Total pre-65 insurance cost$71,400

Maria and James will pay $71,400 in health insurance premiums alone during the 5-year gap. Using COBRA for the first 18 months keeps their doctors, then they transition to an ACA marketplace Silver plan with partial subsidies.

HSA Strategy tab

Current HSA balance$45,000

Years of contributions remaining5 years at $9,750/yr (family + catch-up)

HSA balance at retirement$106,800

Years of healthcare covered13.4 years

Tax advantage vs taxable account$26,700

Their HSA, invested and compounding at 7%, could cover 13+ years of healthcare costs and save $26,700 in taxes vs a regular investment account.

FAQ

How much does healthcare cost in retirement? ▼

According to Fidelity’s 2026 Retiree Health Care Cost Estimate, an average 65-year-old couple retiring today needs approximately $365,000 to cover healthcare expenses in retirement (up from $315,000 in 2023). For a single person, the estimate is roughly $182,500. These figures include Medicare premiums (Parts B and D), out-of-pocket costs, and supplemental insurance, but exclude long-term care and dental/vision beyond basic coverage.

What is the best HSA strategy for retirement healthcare? ▼

The optimal HSA strategy is to maximize contributions ($4,400 self / $8,750 family in 2026, plus $1,000 catch-up at 55+), invest the funds in index funds, and pay current medical expenses out-of-pocket while saving receipts. This lets your HSA compound tax-free for decades. You can reimburse yourself for past medical expenses at any point — there’s no time limit. After age 65, HSA funds can be withdrawn for any purpose (paying income tax, like a traditional IRA), or tax-free for qualified medical expenses.

How does the ACA marketplace work for early retirees? ▼

Early retirees (before age 65) can purchase health insurance through the ACA marketplace (Healthcare.gov or state exchanges). Premium tax credits are available based on your income relative to the Federal Poverty Level (FPL). In 2026, the FPL is approximately $16,300 for a single person plus $5,750 per additional household member. Below 400% FPL, premiums are capped on a sliding scale. Above 400% FPL, the post-ARP baseline caps premiums at 8.5% of income. Managing your modified adjusted gross income (MAGI) through Roth conversions, capital gains timing, and withdrawal strategies can significantly affect your ACA subsidy eligibility.

Should I use COBRA or the ACA marketplace after retirement? ▼

COBRA lets you keep your employer health plan for up to 18 months (36 months for some qualifying events), but you pay the full premium plus a 2% admin fee — typically $600-$2,000+/month. The ACA marketplace may be cheaper, especially if you qualify for premium tax credits. The best strategy is often to compare COBRA cost vs ACA with subsidies for your income level. Losing employer coverage is a qualifying life event for ACA special enrollment, so you can switch at any time during the COBRA period. Many retirees use COBRA initially (to keep their doctors) and transition to ACA when COBRA expires.

What healthcare costs does Medicare not cover? ▼

Medicare has significant gaps: (1) Dental care — Medicare does not cover routine dental, which averages $1,000-$3,000+/year for older adults. (2) Vision — eye exams and glasses are generally not covered. (3) Hearing aids — can cost $2,000-$7,000 per pair. (4) Long-term care — Medicare covers only short-term skilled nursing, not custodial care. Nursing home costs average $95,000-$110,000/year in 2026. (5) Deductibles and coinsurance — Part A has a $1,632 deductible per benefit period; Part B has 20% coinsurance with no out-of-pocket maximum. Medigap supplemental insurance helps cover some of these gaps.

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