The Four Metal Tiers
ACA Marketplace plans come in four metal tiers reflecting the premium/cost-sharing split: Bronze (60/40 — plan pays 60%, you pay 40%), Silver (70/30), Gold (80/20), and Platinum (90/10). Higher metals cost more in monthly premium but less when you use care. All tiers must cover the same essential health benefits — the difference is in cost-sharing structure, not what services are covered.
Silver + CSR — The Special Case for Lower Incomes
Silver plans are the only tier where Cost-Sharing Reductions (CSR) are applied. CSR is a subsidy that reduces deductibles and out-of-pocket maximums for households with income 100–250% FPL. The three CSR tiers:
| Income Level | CSR Tier | Actuarial Value | Approx. OOP Max (individual) |
|---|---|---|---|
| 100–150% FPL | Silver 94 | 94% | ~$1,400 |
| 150–200% FPL | Silver 87 | 87% | ~$3,900 |
| 200–250% FPL | Silver 73 | 73% | ~$7,200 |
A Silver 94 plan at 100–150% FPL provides Platinum-level out-of-pocket protection — often at $0 premium with enhanced subsidies. This is the single best insurance value available to eligible households.
Gold Plans — When They Win
Gold plans win when: (1) you expect significant health care use (chronic conditions, planned procedures, frequent specialist visits); (2) your income is above 250% FPL so no CSR applies to Silver; (3) you can afford the higher monthly premium. Without CSR, Silver's 30% cost-sharing can add up quickly for high-utilizers — Gold's 20% split and lower deductible may cost less overall even at higher premiums.
Bronze — When It Makes Sense
Bronze plans make sense for: healthy young adults mainly wanting protection against catastrophic costs; households above 400% FPL paying full price who want to minimize monthly premiums; households with HSA-eligible high-deductible plans. Bronze should not be chosen by households who expect moderate or high health care utilization, or by households with income in the CSR range — where Silver 94 or Silver 87 is almost always better.
The Math — A Side-by-Side Example
Example: household at 300% FPL (above CSR range), estimating $3,000 in non-preventive annual care costs. Silver plan: $200/month premium, $2,000 deductible, 30% coinsurance. Gold plan: $270/month premium, $500 deductible, 20% coinsurance. Annual total — Silver: $2,400 + $2,000 + 30% of $1,000 = $4,700. Gold: $3,240 + $500 + 20% of $2,500 = $4,240. Gold saves $460 in this scenario. For lower utilization ($1,000/year), Silver wins. The breakeven depends on actual expected utilization — use healthcare.gov's plan comparison tool to model your specific situation.
For Lower-Income Enrollees — Silver Usually Wins
If your income is 100–250% FPL and you qualify for CSR, Silver is almost always the right choice. Silver 94 at 100–150% FPL makes Gold and Platinum irrelevant — you get better out-of-pocket protection at lower (or zero) premium cost. The only exception: at 200–250% FPL with Silver 73, very high expected utilization might tip the balance toward Gold — run the numbers using healthcare.gov's comparison tool for your specific prescriptions and expected care needs.
How to Compare Plans on Healthcare.gov
Healthcare.gov's plan comparison tool allows side-by-side comparison of up to three plans. Use it to: see estimated annual cost at different utilization levels (low, medium, high utilization scenarios); verify your specific medications are on the formulary; check whether your preferred doctors are in-network; compare total estimated cost, not just the premium. For full subsidy eligibility context, see ACA Subsidy Eligibility 2026.