ACA Subsidy Cliff Calculator
See exactly how close your household is to the 2026 ACA "subsidy cliff" -- the 400% Federal Poverty Line income threshold where your entire marketplace premium tax credit disappears at once.
Estimate only — these are not official figures
The 400%-FPL threshold is statutory, but subsidy outputs use a user-entered benchmark premium, assume benchmark-plan enrollment and an unchanged premium for 12 months, and derive annual/monthly planning values before final 2026 Form 8962 instructions.
Do not rely on these amounts for budgeting or payment. For exact amounts, check the 26 U.S.C. § 36B (current through Aug. 6, 2026): https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section36B&num=0&edition=prelim; IRS Rev. Proc. 2025-25: https://www.irs.gov/pub/irs-drop/rp-25-25.pdf; HHS 2025 poverty guidelines: https://www.govinfo.gov/content/pkg/FR-2025-01-17/html/2025-01377.htm.
Enter Your Details
Adjust values to see instant results
Cliff Status
Under the cliff -- income is $6,600 below the 400% FPL threshold (375.23% of FPL). Crossing it would eliminate the entire credit shown below, not just reduce it.
Estimated • Based on your inputs
400% FPL Income Threshold (Your Cliff)
$106,600.00
Dollars From the Cliff
$6,600.00
Annual Subsidy That Disappears at the Cliff
$3,783.00
Detailed Breakdown
Disclaimer: This calculator provides estimates for informational purposes only. Results should not be considered financial, tax, or legal advice. Consult a qualified professional for your specific situation.
How This Calculator Works
Calculation methodology and assumptions
Under current 26 U.S.C. Section 36B, reviewed August 7, 2026, an applicable taxpayer's household income cannot exceed 400% of the poverty line. The temporary 2021-2025 rule that removed that ceiling ended after 2025, and no enacted 2026 extension was found. This model multiplies the official 2025 HHS poverty guideline by four, because that was the most recently published guideline when 2026 open enrollment began, and compares the entered income with that threshold. The subsidy figures use Revenue Procedure 2025-25's 9.96% contribution rate at 400% FPL and assume the household enrolls in the entered benchmark plan at the same monthly premium for all 12 months. They are modeled annual amounts, not official Marketplace determinations; actual enrollment premiums, coverage months, eligibility for other coverage, and household changes can alter the credit.
How to Use This ACA Premium Tax Credit Calculator
- 1
Enter your household income
Input your Modified Adjusted Gross Income (MAGI). This drives the income portion of the ACA premium-tax-credit estimate. Eligibility also depends on factors this calculator does not test, including Medicaid/CHIP or affordable employer coverage.
- 2
Enter household size
Enter the tax household size used for the federal poverty guideline. The default premium is an age-40 individual benchmark, not a family premium, so replace it with your household's actual SLCSP before relying on the subsidy result.
- 3
Check the benchmark premium
Review the editable 2026 second-lowest-cost Silver benchmark for your state. Premiums vary by age, county, tobacco use, insurer, and covered family members; use your marketplace's exact SLCSP for a personal estimate.
- 4
Review premium and out-of-pocket costs
Compare monthly premiums after subsidies, annual deductibles, copays, and maximum out-of-pocket limits. Your state may have additional state-level subsidies.
Example Calculation
Let's estimate 2026 health-insurance costs for one 40-year-old in the United States.
The editable second-lowest-cost Silver benchmark is $625/month. With $50,000 household income, a $3,000 deductible, 20% coinsurance, and $5,000 of expected medical costs, the calculator applies the 2026 premium-tax-credit formula and out-of-pocket estimate.
Result: Estimated annual premium before credit: $7,500; estimated premium tax credit: $2,520; estimated total annual premium plus out-of-pocket cost: $8,380. This is planning math, not a quote — replace the benchmark with the exact SLCSP for your age, county, and household.
What Affects Your Results
Income Level
ACA subsidies are based on income relative to the Federal Poverty Level. A $1,000 income change near subsidy cliffs can mean hundreds in premium difference. Plan income carefully during open enrollment.
Age
The published default is for age 40. Federal law permits states to establish their own uniform age curves, and some prohibit age rating, so this calculator does not apply one nationwide age multiplier. Enter your marketplace's actual benchmark for your covered members.
Geographic Rating Area
Premiums vary significantly by region within each state. Rural areas with fewer hospitals and providers tend to have higher premiums than competitive urban markets.
Tobacco Use
ACA allows a 50% tobacco surcharge. This surcharge does NOT qualify for premium subsidies, making it extremely expensive. Tobacco cessation programs can eliminate this surcharge.
Tips & Best Practices
- Check marketplace plans if you lack qualifying affordable coverage. Access to affordable employer coverage can make you ineligible for premium tax credits even when a marketplace plan appears cheaper.
- Some states run their own health insurance exchanges with additional state-level subsidies beyond federal premium tax credits. Check your state exchange during open enrollment (Nov 1 - Jan 15).
- If your income is under 250% FPL, Silver plans with Cost-Sharing Reductions are almost always the best value. The CSR subsidies dramatically lower deductibles and copays beyond what the premium subsidy alone provides.
- HSA-eligible Bronze plans make sense if you're healthy and want to build tax-advantaged savings. Annual contribution limits: $4,400 (individual) / $8,750 (family) for 2026.
- Compare total annual cost (premiums + expected medical expenses), not just premiums. A $400/month plan with a $500 deductible often costs less annually than a $200/month plan with a $7,000 deductible if you use medical services regularly.
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StateCalc Team
Editorial Team
The StateCalc team builds free financial calculators using data from official government sources including the IRS, U.S. Census Bureau, BLS, and state revenue departments. All formulas are validated by an automated test suite and cross-referenced against published data.
Our editorial standardsFrequently Asked Questions
What exactly is the ACA subsidy cliff?
It's the 400% Federal Poverty Line (FPL) income threshold above which a marketplace household receives $0 in premium tax credit -- no matter how expensive the benchmark plan is. Unlike a tax bracket, there's no phase-out: earning even $1 over the threshold eliminates the entire credit at once, which is why it's called a "cliff" rather than a gradual reduction.
What is the 2026 ACA subsidy cliff income for a family of 4?
For 2026 marketplace coverage in the 48 contiguous states and DC, the subsidy cliff for a household of 4 is $128,600 in MAGI (400% of the 2025 Federal Poverty Line of $32,150 for a household of that size). Alaska and Hawaii have higher thresholds because their FPL guidelines are higher: $160,760 for Alaska and $147,920 for Hawaii.
What is the 2026 ACA subsidy cliff for a family of 2 or 3?
In the 48 contiguous states and DC, the 400%-FPL cliff is $84,600 for a household of 2 and $106,600 for a household of 3, using the 2025 FPL guidelines of $21,150 and $26,650. A single person's cliff is $62,600. These figures apply regardless of filing status (single vs. married filing jointly) -- what matters for the cliff is tax household size, not filing status, though married couples filing separately generally cannot claim the premium tax credit at all.
Why did the subsidy cliff come back for 2026?
The American Rescue Plan (2021) and Inflation Reduction Act (extended through 2025) temporarily removed the 400% FPL income cap entirely and capped everyone's contribution at 8.5% of income, so no household lost 100% of their credit purely for earning too much. Those enhancements expired at the end of 2025 and Congress did not extend them, so 2026 marketplace coverage reverts to the ACA's original rules, which include the hard 400% FPL cutoff.
How can I avoid falling off the subsidy cliff?
Because eligibility is based on Modified Adjusted Gross Income (MAGI), pre-tax contributions that reduce MAGI -- traditional 401(k)/IRA contributions, HSA contributions, and self-employed health insurance or SEP-IRA deductions -- can pull a household back under the threshold. Households right at the edge should model a MAGI-reducing contribution against this calculator's "Annual Subsidy That Disappears at the Cliff" figure: a contribution far smaller than that subsidy amount can still be well worth making.
Does the subsidy cliff affect Medicare or IRMAA too?
No -- the 400% FPL subsidy cliff is specific to ACA marketplace premium tax credits for people under 65 (or otherwise not on Medicare). Medicare's Income-Related Monthly Adjustment Amount (IRMAA) is a completely separate, gradual bracket system with its own MAGI thresholds two years in the past -- see this site's Medicare IRMAA Calculator for that calculation.
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