Pre-Medicare Gap Calculator — How Much Health Insurance Costs If You Retire Before 65
Estimate the total ACA premium and out-of-pocket cost you'll self-fund from your retirement age to Medicare eligibility at 65. Includes Premium Tax Credit (PTC) subsidies sized against your expected MAGI. Built for FIRE households sizing the gap before pulling the trigger.
Quick answer:Under this calculator's assumptions, a single person retiring at 55 with $60,000 MAGI models at roughly $122,000 across the 10-year gap: about $5,820 per year in net benchmark premiums plus $6,360 in medium-utilization out-of-pocket spending. A two-person household at the same MAGI models near $174,000. Enter your details below and verify actual Marketplace quotes for your county.
Your scenario
Across 10 years before Medicare — net premiums plus expected out-of-pocket, averaging $12,184/yr.
Year-by-year breakdown table
| Age | Gross prem. | PTC | Net prem. | OOP est. | Year total |
|---|---|---|---|---|---|
| 55 | $9,840 | −$4,016 | $5,824 | $6,360 | $12,184 |
| 56 | $10,368 | −$4,544 | $5,824 | $6,360 | $12,184 |
| 57 | $10,896 | −$5,072 | $5,824 | $6,360 | $12,184 |
| 58 | $11,424 | −$5,600 | $5,824 | $6,360 | $12,184 |
| 59 | $11,952 | −$6,128 | $5,824 | $6,360 | $12,184 |
| 60 | $12,480 | −$6,656 | $5,824 | $6,360 | $12,184 |
| 61 | $13,080 | −$7,256 | $5,824 | $6,360 | $12,184 |
| 62 | $13,680 | −$7,856 | $5,824 | $6,360 | $12,184 |
| 63 | $14,340 | −$8,516 | $5,824 | $6,360 | $12,184 |
| 64 | $15,000 | −$9,176 | $5,824 | $6,360 | $12,184 |
How this estimate is calculated
We start from national-average unsubsidized Silver plan premiums by age (linearly interpolated between KFF benchmark ages 45, 50, 55, 60, 62, 64), double the premium for 2-person households, then cap household premium contribution at the 2026 ACA applicable percentage of MAGI for households from 100% to just under 400% FPL. The modeled contribution rises from 1.96% to 9.96%; at or above 400% FPL this calculator applies no federal PTC. OOP is estimated as your selected utilization multiplier times the Silver plan's max OOP. Premiums are in 2025 dollars and are not inflated year-over-year.
What is the pre-Medicare gap?
Medicare eligibility in the US starts at age 65. If you retire at 55 — the canonical FIRE target — that's a full decade where you have no employer health plan and no Medicare. The ACA marketplace (healthcare.gov or your state exchange) is the default option: you buy an individual plan, typically a Silver-metal policy, and if your household MAGI falls below the Premium Tax Credit threshold, the federal government subsidizes the premium on a sliding scale.
The "gap" matters for two reasons. First, unsubsidized premiums rise steeply with age — roughly $560/month at 45, $820 at 55, $1,250 at 64 under national averages. Without subsidy, a married couple retiring at 55 is looking at $300K+ in premiums alone before Medicare. Second, even subsidized, you may face the 2026 Marketplace maximum out-of-pocket limit ($10,600 individual / $21,200 family), which can materially disturb a sequence-of-returns-sensitive early-retirement plan if a bad-utilization year hits in year one or two.
Why it matters for early retirement
Most FIRE calculators stop at "25× expenses" and assume a flat expense line. Healthcare is the single largest exception: it is non-negotiable, increases with age, and — crucially — depends on income levers that also affect your withdrawal strategy (Roth conversions, LTCG harvesting, IRA distributions all push MAGI up). Optimizing one can undo the other. A Roth conversion ladder that pushes MAGI from 200% FPL to 400% FPL can remove the modeled federal PTC, making the conversion math look quite different than it does before healthcare is included.
The practical implication: model the pre-Medicare gap as its own bucket in your retirement plan, not a line item in "expenses." A dedicated taxable-account or HSA bridge sized to cover the gap under multiple MAGI scenarios gives you flexibility — you can choose each year whether to optimize for subsidy or for Roth conversions based on market conditions and tax-law state.
ACA subsidies explained (simplified)
The ACA Premium Tax Credit caps what an eligible household pays for the benchmark Silver plan as a percentage of Modified AGI. For 2026, the applicable-percentage schedule is:
| Income (% FPL) | You pay up to | Notes |
|---|---|---|
| 100–133% | 1.96% | Federal PTC range begins; state Medicaid rules vary |
| 133–150% | 1.96–2.88% | Strong CSR may apply on Silver plans |
| 150–200% | 2.88–4.12% | Strong CSR may apply |
| 200–250% | 4.12–6.49% | Reduced CSR remains available |
| 250–300% | 6.49–8.44% | No federal CSR |
| 300–<400% | 8.44–9.96% | PTC narrows toward the eligibility ceiling |
| ≥ 400% | No modeled PTC | 2026 federal subsidy cliff |
Marketplace coverage uses the prior year's poverty guidelines: $15,650 for a household of 1 and $21,150 for 2 in the contiguous US and DC. So 400% FPL is $62,600 single / $84,600 couple. Alaska and Hawaii use different guidelines, and real eligibility should be checked on the exchange.
Frequently asked questions
What is the pre-Medicare gap and how much does health insurance typically cost?
The pre-Medicare gap is the period between early retirement and Medicare eligibility at 65 when you must self-fund health coverage. Using the calculator's national premium assumptions and 2026 PTC rules, a single person retiring at 55 with $60,000 MAGI models at about $5,820 per year in net benchmark premiums plus $6,360 in medium-utilization out-of-pocket spending — roughly $122,000 across the 10-year gap.
How does the ACA Premium Tax Credit (PTC) work for early retirees?
For 2026, the PTC caps the benchmark Silver premium contribution at 1.96% to 9.96% of household income for eligible households from 100% to below 400% of the Federal Poverty Level. Using the 2025 poverty guidelines for 2026 coverage, 400% FPL is $62,600 for one person and $84,600 for two. At or above that line, this simplified calculator applies no federal PTC.
Did the ACA subsidy cliff return in 2026?
Yes for this federal planning model. The temporary ARPA/IRA enhancement ended after 2025, so the 2026 schedule again limits ordinary federal PTC eligibility to households below 400% FPL. Eligibility has exceptions and state-specific interactions, so confirm your result with HealthCare.gov or your state Marketplace.
How do I keep my MAGI low enough to maximize ACA subsidies in early retirement?
The main levers are: draw from taxable accounts carefully because realized gains count in MAGI, size Roth conversions against your target FPL tier, use tax-free qualified HSA reimbursements where available, and avoid bunching large gains or IRA distributions into one year. Cost-Sharing Reductions can also lower Silver-plan deductibles and out-of-pocket limits for eligible households below 250% FPL.
What's included in the "total cost" this calculator shows?
Total cost = net benchmark premium + estimated annual out-of-pocket spend, summed from retirement through age 64. For PTC-eligible households, net premium is capped by the 2026 applicable percentage of MAGI; outside the modeled 100% to below-400% FPL range, gross premium is used. Estimated OOP applies a 30%, 60%, or 100% utilization factor to the 2026 Marketplace maximum. Dental, vision, and long-term care are excluded, and the estimates are not inflated year over year.
Is this calculator medical or financial advice?
No. This is an educational estimate using published national-average premium and subsidy data to help FIRE-minded households size the pre-Medicare gap in their retirement plan. Actual costs vary by state, specific plan, metal tier, tobacco status, and the HHS Federal Poverty Level applicable to your household size and geography. Before making retirement-timing decisions based on health costs, get real quotes from healthcare.gov (or your state exchange) for your zip code and consult a fiduciary financial planner or enrollment counselor.