17.2 The Affordable Care Act: EHBs, Marketplaces, Subsidies, Mandates
Key Takeaways
- The ACA requires individual and small-group plans to cover ten Essential Health Benefits (EHBs) with no annual or lifetime dollar limits.
- Guaranteed issue, a ban on pre-existing condition exclusions, and dependent coverage to age 26 are core ACA consumer protections.
- Marketplace plans use four metal tiers (Bronze, Silver, Gold, Platinum) defined by actuarial value, the insurer's expected share of covered costs.
- Premium Tax Credits scale with income up to 400% FPL; Cost-Sharing Reductions require a Silver plan and incomes at or below 250% FPL.
- Open enrollment limits when individuals may buy; a qualifying life event opens a Special Enrollment Period.
The Affordable Care Act Framework
The Affordable Care Act (ACA), enacted 2010, restructured the individual and small-group health markets around guaranteed access and standardized benefits. Producers must know what plans must cover, how the Marketplace tiers work, and who qualifies for financial help.
Essential Health Benefits (EHBs)
Non-grandfathered individual and small-group plans must cover ten Essential Health Benefits, with no annual or lifetime dollar limits on them:
- Ambulatory (outpatient) services
- Emergency services
- Hospitalization
- Maternity and newborn care
- Mental health and substance-use disorder services
- Prescription drugs
- Rehabilitative and habilitative services and devices
- Laboratory services
- Preventive and wellness services and chronic disease management
- Pediatric services, including oral and vision care for children
Exam point: Certain preventive services (such as many screenings and immunizations) must be covered with no cost-sharing when delivered in-network.
Core Consumer Protections
| Protection | Effect |
|---|---|
| Guaranteed issue | Insurers must accept all applicants regardless of health |
| Pre-existing condition ban | No exclusions or higher premiums for prior conditions |
| Dependent coverage to age 26 | Adult children may stay on a parent's plan |
| No annual/lifetime dollar limits | Applies to Essential Health Benefits |
| Modified community rating | Premiums vary only by age, geography, tobacco use, and family size |
| Medical Loss Ratio (MLR) | Insurers must spend 80% (individual/small) or 85% (large) of premium on care or issue rebates |
The 3:1 age band caps an older adult's premium at three times a younger adult's for the same plan.
The Marketplace and Metal Tiers
Plans are sold through the Health Insurance Marketplace (Exchange), on HealthCare.gov or a state-based exchange. Plans are grouped by actuarial value (AV), the share of total covered medical costs the plan is expected to pay.
| Metal tier | Plan pays (AV) | Member pays (about) |
|---|---|---|
| Bronze | 60% | 40% |
| Silver | 70% | 30% |
| Gold | 80% | 20% |
| Platinum | 90% | 10% |
Trade-off: Bronze has the lowest premium but the highest out-of-pocket exposure; Platinum reverses that. Same benefits, different cost-sharing split.
Premium Tax Credits and Cost-Sharing Reductions
Two distinct subsidies help with affordability:
- Premium Tax Credit (PTC): advanceable, refundable credit that lowers monthly premiums; historically available from 100% up to 400% FPL (the income at which it phased out). It applies to any metal tier.
- Cost-Sharing Reduction (CSR): lowers deductibles, copays, and coinsurance. It requires enrollment in a Silver plan and income at or below 250% FPL.
Exam trap: CSR is Silver-only. A subsidy-eligible person who buys Bronze or Gold forfeits cost-sharing help even if income qualifies.
Worked Subsidy Scenario
A family at 200% FPL enrolls in Silver. Because income is at or below 250% FPL and the plan is Silver, the family receives both a Premium Tax Credit (lower monthly premium) and Cost-Sharing Reductions (lower deductible and coinsurance).
If the same family instead chose Bronze, it would keep the Premium Tax Credit but lose the Cost-Sharing Reduction, since CSR attaches only to Silver.
Enrollment Periods and the Individual Mandate
- Open Enrollment Period (OEP): the annual window to buy or change Marketplace coverage.
- Special Enrollment Period (SEP): a 60-day window triggered by a qualifying life event such as marriage, birth or adoption, or loss of other coverage.
- Individual mandate: the federal shared-responsibility penalty was reduced to $0 beginning 2019, so there is no federal tax penalty for being uninsured; some states impose their own mandate.
Memory aid: No qualifying event plus no open enrollment means no purchase until the next OEP.
A consumer at 220% of the Federal Poverty Level wants both premium help and reduced deductibles/copays. Which Marketplace choice secures both subsidies?
Which statement about Essential Health Benefits and ACA protections is correct?
Premium Tax Credits and Cost-Sharing Reductions
The ACA delivers two distinct subsidies through the marketplace, and the exam expects you to keep them separate.
| Subsidy | What It Reduces | How You Qualify |
|---|---|---|
| Premium Tax Credit (APTC) | Monthly premium | Income within eligible range; advanceable |
| Cost-Sharing Reduction (CSR) | Deductibles, copays, coinsurance, out-of-pocket max | Lower income AND a Silver-level plan |
The Advance Premium Tax Credit (APTC) can be taken in advance to lower the monthly bill or claimed on the tax return. It is reconciled at tax time: if income was higher than estimated, the excess credit may have to be repaid.
Cost-sharing reductions lower a member's out-of-pocket costs but are available only with a Silver plan. This is why a lower-income enrollee is usually steered to Silver even though Bronze has a cheaper premium - choosing Bronze forfeits the CSR.
Metal Tiers, Essential Health Benefits, and Worked Subsidy
Metal Tiers (Actuarial Value)
| Tier | Plan Pays (approx.) | Member Pays |
|---|---|---|
| Bronze | 60% | 40% |
| Silver | 70% | 30% |
| Gold | 80% | 20% |
| Platinum | 90% | 10% |
All tiers cover the same ten Essential Health Benefits (EHBs) - ambulatory care, emergency, hospitalization, maternity/newborn, mental health/substance use, prescription drugs, rehabilitative services, lab, preventive/wellness, and pediatric services (including dental/vision). Plans differ only in how cost is split, not in what is covered.
Worked Subsidy Example
A marketplace enrollee owes a $620 monthly premium for a benchmark Silver plan. Her household income caps her expected contribution at $180 per month.
Benchmark premium $620
- Expected contribution ($180)
= Premium tax credit $440 per month
The $440 APTC flows directly to the insurer, leaving her a $180 bill. If she later earns more than projected, part of that $440 may be recaptured at tax time.
A lower-income marketplace enrollee qualifies for cost-sharing reductions. To actually receive the reduced deductibles and copays, she must enroll in which metal tier?