ACA / Marketplace plans

What are cost-sharing reductions and do I qualify?

Reviewed by Howard Yeh, agency principal, Healthcare.com Insurance ServicesLast reviewed 2026-09-04

Cost-sharing reductions (CSRs) lower what you pay out of pocket when you use your health plan. If you qualify, your Silver Marketplace plan comes with a lower deductible, lower copays, and a lower out-of-pocket maximum than the standard version of the same plan. CSRs are only available on Silver-tier plans purchased through the Health Insurance Marketplace, and eligibility is generally based on household income below 250% of the federal poverty level. This is one of the most commonly missed benefits in the Marketplace.

At a glance

  • CSRs reduce your deductible, copays, and out-of-pocket maximum, not your monthly premium.
  • They are available only on Silver plans purchased through the Marketplace.
  • You may qualify if your household income is generally below 250% of the federal poverty level (FPL).

How CSRs differ from premium tax credits

People often confuse cost-sharing reductions with premium tax credits because both are forms of financial help available through the Marketplace. They do different things:

  • Premium tax credits (PTC) lower your monthly premium. The amount depends on your income, household size, age, and the cost of plans in your area.
  • Cost-sharing reductions (CSR) lower your out-of-pocket costs when you use care: your deductible, copays, coinsurance, and the maximum you pay in a year.

You can receive both at the same time. Premium tax credits are available on plans at any metal tier (Bronze, Silver, Gold, Platinum) through the Marketplace, but cost-sharing reductions are available only on Silver plans.

Who generally qualifies

CSR eligibility is based on your household income relative to the federal poverty level. The general income thresholds are:

  • 100% to 150% FPL: The strongest CSRs, significantly reducing deductibles and out-of-pocket costs.
  • 150% to 200% FPL: Moderate CSRs, with meaningful but smaller reductions.
  • 200% to 250% FPL: More modest CSRs that still lower your cost-sharing compared to a standard Silver plan.

The exact dollar thresholds change each year as the federal poverty level is updated. For a single person in the 48 contiguous states, 250% FPL was approximately $39,125 using the 2025 poverty guidelines and $39,900 using the 2026 guidelines. This figure changes annually, and eligibility for a coverage year is generally measured against the guidelines published the year before. For larger households, the threshold is higher.

Members of federally recognized tribes may qualify for additional cost-sharing reductions at higher income levels, up to 300% FPL.

Important: These are approximate guidelines. Your actual eligibility depends on your projected household income for the coverage year and your household size. The Marketplace determines eligibility when you apply.

Why only Silver plans

CSRs are built into the Silver tier by design. When you qualify, the Marketplace applies the reductions to any Silver plan you choose, automatically. You do not need to apply separately or request them. You just need to:

  1. Enroll through the Marketplace (HealthCare.gov or your state's exchange).
  2. Select a Silver plan.
  3. Have an estimated household income that qualifies.

If you buy a Bronze, Gold, or Platinum plan, or if you buy a plan outside the Marketplace (directly from an insurer), you will not receive CSRs, regardless of your income.

What changes with CSRs

CSRs do not change the services your plan covers. They change how much you pay when you use those services. Here is an illustration of how the numbers can shift:

Hypothetical comparison: Standard Silver vs. Silver with CSRs

Standard SilverSilver with strong CSRs
Deductible$4,000$200
Primary care copay$40$5
Specialist copay$80$15
Out-of-pocket maximum$9,200$3,000
Monthly premiumSame base rateSame base rate

These figures are illustrative. Actual plan amounts depend on the specific plan, your location, and the plan year. CSR amounts vary by income level.

The monthly premium for the Silver plan stays the same (before any premium tax credit is applied). The out-of-pocket cost structure is what changes.

Why some people should pick Silver even when Bronze looks cheaper

This is where CSRs create counterintuitive math. A Bronze plan may have a lower monthly premium, but if you qualify for CSRs, a Silver plan could cost you much less overall when you actually use care.

Hypothetical: Jamie earns about $20,000 a year and qualifies for strong CSRs. A Bronze plan costs $0/month after premium tax credits with a $7,000 deductible. A Silver plan with CSRs costs $25/month after credits with a $200 deductible and a $3,000 out-of-pocket maximum. If Jamie needs even moderate medical care during the year, the Silver plan with CSRs is likely a better financial deal despite the slightly higher premium.

This does not mean Silver is always the right choice. If you rarely use healthcare and want the lowest possible premium, a Bronze plan may still make sense. But if you qualify for CSRs and expect to use medical services, ignoring Silver means leaving significant savings on the table.

Common misconceptions

"I already get a subsidy, so I must be getting CSRs too." Not necessarily. Premium tax credits and CSRs have different eligibility rules. You can qualify for premium tax credits at higher income levels than CSRs. And premium tax credits apply to any metal tier; CSRs apply only to Silver.

"I can get CSRs on any plan if my income is low enough." No. CSRs are only available on Silver plans through the Marketplace. A Gold plan, even at a lower income, does not include CSRs.

"CSRs lower my premium." They do not. CSRs lower your cost-sharing (deductible, copays, out-of-pocket maximum). Your premium is a separate calculation affected by premium tax credits.

"I need to apply separately for CSRs." You do not. When you complete your Marketplace application and select a Silver plan, CSRs are applied automatically if you qualify.

What to do next

Primary action: Check your savings by entering your household size and estimated income. You will see whether you qualify for premium tax credits, cost-sharing reductions, or both, and how Silver plans compare to other options.

Alternative: If you want to understand how CSRs would affect your costs for specific care needs, call or chat with a licensed agent at Healthcare.com for a personalized comparison.

This article provides general educational information, not legal, tax, or financial advice. Plan availability, pricing, subsidies, and benefits depend on individual circumstances, location, and the current plan year, and may change.

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Eligibility for Affordable Care Act (ACA) premium tax credits and cost-sharing reductions is based on household income, household size, and plan availability in your area. The enhanced premium tax credits that were in effect from 2021 through 2025 expired on December 31, 2025. For plan year 2027, premium tax credits follow the standard rules under Internal Revenue Code §36B, which generally limit eligibility to households with income between 100% and 400% of the federal poverty level. Under these rules, eligible households are expected to contribute between 2.15% and 10.22% of household income toward the cost of a benchmark silver plan (IRS Rev. Proc. 2026-26). Premiums, plan availability, and subsidy amounts vary by income, household size, age, and location. Final eligibility and premium tax credit amounts are determined by the Health Insurance Marketplace. If your actual income differs from your estimate, you may have to repay some or all of any advance premium tax credit when you file your taxes. Federal legislation affecting premium tax credits may change these amounts.

*87% of Marketplace enrollees received a premium tax credit in 2026. Centers for Medicare & Medicaid Services, 2026. Health Insurance Exchanges 2026 Open Enrollment Report.

+Plan availability varies by location.

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