Healthcare Bridge Estimator
One of the biggest hidden costs in early retirement is health insurance. If you retire before 65, you need private coverage until Medicare kicks in. This tool helps you estimate that bridge cost using your own premium figures. It does not estimate ACA subsidies.
How much do you need to retire early with a healthcare bridge before Medicare?
At a $7,200/yr premium with 5% annual growth, retiring at 50 means 15 bridge years and $155,366 total before Medicare at 65. As of 2026-10-07, later retirement ages shorten the bridge and lower the total — retiring at 64 needs just 1 year of coverage.
Updated .
| Retirement Age | Bridge Years | Total Estimated Cost | Medicare At |
|---|---|---|---|
| Retire at 45 | 20 yrs | $238,075 | 65 |
| Retire at 50 | 15 yrs | $155,366 | 65 |
| Retire at 55 | 10 yrs | $90,561 | 65 |
| Retire at 60 | 5 yrs | $39,785 | 65 |
| Retire at 64 | 1 yrs | $7,200 | 65 |
Factors that affect this number
- Your annual health insurance premium (you enter it; the tool does not estimate one)
- Annual premium growth rate — an adjustable assumption (the worked example uses 5%/yr; premiums are not guaranteed to follow it)
- Number of bridge years between your retirement age and Medicare eligibility at 65
- Whether you have access to COBRA continuation coverage (18-36 months, employer-specific)
- ACA marketplace subsidy eligibility, which depends on income and household size (not modeled here)
- State of residence, which affects marketplace plan pricing
- Medicare eligibility begins at age 65 — Social Security Act §226
- 5%/yr premium growth in the worked example (an adjustable assumption, not a published figure) — KFF 2025 Employer Health Benefits Survey (context on employer premiums)
Estimate your bridge cost
Informational estimate only. Annual premiums are user-supplied. This tool does not estimate ACA subsidies. Your actual premium, subsidy, and eligibility depend on income, household size, plan, and state. Get real quotes at healthcare.gov. Not financial, tax, or medical advice.
Next steps
- See when each FIRE type is reachableYour retirement age sets the bridge years. The calculator shows the age each of the five FIRE types reaches its target.
- Compare the five FIRE typesLean, Regular, Fat, Coast and Barista targets with formulas and worked examples.
- Read the Complete FIRE GuideThe healthcare bridge before Medicare, the 4% rule and withdrawal-rate research, with cited sources.
How the estimate works
Medicare eligibility in the United States begins at age 65, as set by the Social Security Act §226. If you retire earlier, you need private coverage for every year between your early-retirement date and 65.
The calculation is straightforward: multiply your annual premium by the number of bridge years. If you supply a growth rate, the tool applies a geometric series to account for compounding annual increases:
Total cost = premium × ((1 + growth rate)^(bridge years) − 1) ÷ growth rate
When no growth rate is provided (or it is 0%), the formula simplifies to premium × bridge years.
All computation happens entirely in your browser — no data is sent to a server.
Worked example
Say you're 35 years old, planning to retire early at 50, with a real quote of $7,200/yr for private coverage and an assumed 5% annual premium growth rate (an adjustable assumption, not a published statistic). Here is the exact calculation:
- Bridge years = 65 − 50 = 15 years of private coverage needed before Medicare.
- Since the growth rate is non-zero, the tool applies the geometric series: $7,200 × ((1.05)^15 − 1) / 0.05.
- Total estimated bridge cost = $155,366 across all 15 years — this is the number the result cards above would show for these exact inputs.
That total is about 1.44× the naive flat estimate ($108,000) you'd get by ignoring premium growth — which is why the growth-rate field matters for longer bridges.
What this tool does NOT do
- No ACA subsidy calculations. Subsidy amounts depend on your Modified Adjusted Gross Income, household size, plan tier, and state. A figure generated from age and income alone would be a guess, so this tool does not produce one. Get real quotes at healthcare.gov.
- No COBRA cost modeling. COBRA is a short-term option (up to 18–36 months) with amounts specific to your employer plan.
- No HSA strategy modeling. Health Savings Accounts can offset premium costs, but the right strategy depends on your individual tax situation.
Methodology note: Bridge-years formula uses the publicly defined Medicare eligibility age (65) per Social Security Act §226. No government-benefit amounts are synthesized or implied.
Healthcare Bridge FAQ
Disclaimer: This calculator is for educational and informational purposes only. It is not financial advice. Results are based on simplified assumptions and do not guarantee future outcomes. Consult a qualified financial advisor before making investment decisions.
Sources & References
- [1]Medicare.gov — When Does Medicare Coverage Start?— Official Medicare source: you can generally sign up when you turn 65.
- [2]Social Security Act §226 (42 U.S.C. §426) — Entitlement to Hospital Insurance Benefits— Statutory basis for Medicare hospital insurance at age 65 (U.S. Code text from the Government Publishing Office).
- [3]Healthcare.gov — Health Insurance Plans and Prices— Official ACA marketplace for obtaining real premium quotes based on your income and location.
- [4]KFF — 2025 Employer Health Benefits Survey— Context on employer health plan premiums. It does not measure the individual plans an early retiree buys, and the 5% growth used here is an adjustable assumption, not a KFF figure.