ACA Subsidy Cliff Is Back. See 400% FPL Limits For 2026 And 2027, New IRS Percentages, Repayment Rules, State Help And Open Enrollment Dates

The ACA subsidy cliff is the hard income cutoff at 400% of the federal poverty level, above which a household gets no federal Premium Tax Credit, and it is the single biggest reason Marketplace bills jumped this year. The enhanced credits that removed that cutoff from 2021 through 2025 expired on December 31, 2025, and Congress has not brought them back. Open enrollment for 2027 coverage begins this Sunday, November 1, so millions of households are about to find out how the cliff, higher premiums and a new uncapped repayment rule apply to them. KFF’s analysis of reported payments found that average monthly premium payments for enrollees rose 58 percent in 2026, from $113 to $178. We will be updating this article monthly as Congress, the courts, the IRS and state exchanges release new information.

The cliff is not the only change. The One Big Beautiful Bill Act removed the caps that used to limit how much excess advance credit a household had to repay, starting with tax year 2026, so an honest income estimate that turns out too low can now produce a full repayment bill when 2026 returns are filed in early 2027. On top of that, the IRS has published new 2027 contribution percentages that ask more of every income band, and KFF reports that insurers are asking for a median 15 percent rate increase for 2027 after a median 20 percent finalized increase for 2026. This guide combines everything a Marketplace shopper needs in one place: the 400% limits for both coverage years, the updated 2027 percentage table, worked examples, the repayment rule, open enrollment dates, help from 10 states, and how the separate $50 billion Rural Health Transformation Program fits into the wider picture.

ACA Subsidy Cliff 2026 Key Highlights

What Is the ACA Subsidy Cliff?

The Premium Tax Credit is a refundable federal tax credit that lowers the monthly premium for Marketplace health insurance. Most people take it in advance, which means the government pays part of the premium directly to the insurer each month. The amount depends on household income, household size and the price of the benchmark plan in your area, which is the second-lowest-cost Silver plan.

Under the original ACA rules, household income generally has to fall between 100% and 400% of the federal poverty level for the credit to apply. The cliff is what happens at the top of that range. A household one dollar below 400% can receive thousands of dollars in help, while a household one dollar above receives none. During the enhanced years, that edge was replaced with a slope, because no household had to pay more than 8.5 percent of income for the benchmark plan. For 2026 the slope is gone and the edge is back.

It is important to be precise about what ended. The Premium Tax Credit itself did not end. CMS says financial help remains available to most Marketplace enrollees in 2026. What expired was the enhanced version, which raised the size of credits and removed the income ceiling. So the accurate headline is not that ACA subsidies disappeared, but that the enhanced subsidies expired and the original, less generous structure returned.

Why Did the ACA Subsidy Cliff Return in 2026?

Two temporary laws created the enhanced credits. The American Rescue Plan Act of 2021 introduced them for 2021 and 2022, and the Inflation Reduction Act of 2022 extended them through 2025. Neither law made them permanent, so the original rules came back on January 1, 2026 once Congress failed to act before year end.

The political fight has not ended. The Senate voted on competing proposals on December 11, 2025. A Democratic plan for a three-year extension drew 51 votes, short of the 60 needed, and a Republican alternative built around health savings accounts also failed. On January 8, 2026, the House passed a three-year extension by a vote of 230 to 196, with 17 Republicans joining Democrats after a discharge petition forced the vote. The Congressional Budget Office estimated that a three-year extension would add 6.2 million people to Marketplace coverage by 2029. As of the latest reporting we could find, the Senate has not passed that bill or any replacement, and negotiations have stalled ahead of the November 3 midterm elections. Enrollees should plan around current law rather than wait for a fix. We have not found any reporting that would justify assuming a retroactive change.

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What Happened to ACA Premiums and Enrollment in 2026?

National averages hide a very wide range of outcomes, but several measures point the same way.

KFF projected before the expiration that average annual premium payments for subsidized enrollees would rise 114 percent, from $888 to $1,904. Its later analysis of actual 2026 data found a smaller average increase of 58 percent, from $113 to $178 per month, in part because many enrollees moved to cheaper plans. Average deductibles rose 37 percent, or $1,027 per person, to a record $3,786, according to KFF. Bronze plans made up roughly 40 percent of 2026 plan selections, a sign of people trading coverage depth for lower premiums.

CMS reported that 23.1 million consumers selected or were automatically re-enrolled in a Marketplace plan for 2026, about 1.2 million fewer than the 24.3 million in 2025. New consumer sign-ups fell about 13 percent. CMS also reported that 34 percent of consumers chose a plan costing $10 or less per month after the advance credit, which is why it describes coverage as still affordable for many. Earlier CMS projections put the average post-credit premium for the lowest-cost HealthCare.gov plan at about $50 a month, and the agency’s report indicated that the average post-credit premium for comparable consumers rose by $15 on HealthCare.gov and $36 in state-run exchanges. Those CMS figures use a different method from KFF’s, which is why the headline numbers do not match.

The number that matters most for the long run is effectuated enrollment, which counts people who actually paid and kept coverage. Federal data released in late June showed it falling about 13 percent, from 22.1 million to 19.2 million, the largest drop since the Marketplaces opened in 2014, according to the Center on Budget and Policy Priorities. KFF has said average monthly enrollment could slide toward 17.5 million by the end of 2026. Lower-income enrollees, who kept some help, dropped coverage at lower rates than those above 400 percent, who lost their credits entirely.

ACA Subsidy Cliff Income Limits: The 400% FPL Table

One of the most common mistakes is using the wrong poverty guidelines. Marketplace eligibility for a coverage year uses the guidelines published in January of the year before. That means 2026 coverage uses the 2025 HHS guidelines, and 2027 coverage uses the 2026 HHS guidelines. The table below shows the 400 percent ceiling for the 48 contiguous states and the District of Columbia under both.

Alaska and Hawaii have separate, higher guidelines. For 2026, the one-person guideline is $19,950 in Alaska and $18,360 in Hawaii, which puts the 400 percent line at $79,800 and $73,440 for a single person. The 100 percent floor for a family of four in the contiguous states is $33,000 under the 2026 guidelines.

The income that counts is modified adjusted gross income for everyone in your tax household. That is your adjusted gross income plus tax-exempt interest, nontaxable Social Security benefits and excluded foreign earned income. It includes a spouse and any dependent who must file a return, not just the person enrolling. CMS data cited in our earlier reporting indicated that about 1.5 million Marketplace consumers reported income above the 400 percent line in 2024, the group now facing the cliff with no enhanced protection.

How Much You Are Expected to Pay: The 2027 Applicable Percentage Table

The credit equals the benchmark plan premium minus your required contribution, which is your income multiplied by an applicable percentage. The IRS published the 2027 table in Rev. Proc. 2026-26 on July 21, 2026. Every band asks for slightly more than it did in 2026, and the top rate is now 10.22 percent, up from 9.96 percent.

Within each band, the percentage rises in a straight line from the lower figure to the higher one as income climbs. The same 10.22 percent figure is the 2027 affordability threshold for employer coverage. Earlier versions of this guide cited a threshold of roughly 9 percent, and some older articles still show the 2026 table as if it applied to 2027. It does not.

Worked examples for 2027 coverage

These examples use the 2026 poverty guidelines and the 2027 table. The benchmark premium is an assumption, because the real figure depends on your county and age.

A single applicant with a projected income of $28,000 is at about 175 percent of the poverty level. The applicable percentage at that point is about 5.56 percent, so the expected contribution is roughly $1,557 a year, or about $130 a month. If the benchmark Silver plan costs $6,200 a year, the credit is about $4,643 a year, or roughly $387 a month, and it can be applied to any metal tier.

A family of four with a projected income of $130,000 is at about 394 percent of the poverty level, just under the line. The expected contribution is the full 10.22 percent, about $13,286 a year or $1,107 a month, and the credit covers any benchmark cost above that.

The cliff itself can be shown with a simple hypothetical. Assume the same family faces a benchmark premium of $22,000 a year. At an income of $131,900 their credit would be about $8,520. At $132,100, which is $200 higher, the credit is zero. This is an illustration, not a prediction, but it shows why a small change in income, a bonus or a capital gain can matter so much near the line.

The Repayment Cap Is Gone

This is the change many people have missed. Section 71305 of the One Big Beautiful Bill Act, which is Public Law 119-21, struck the table that limited repayment of excess advance Premium Tax Credit payments. The IRS confirms there is no repayment cap for tax years after 2025. Previously, households below 400 percent who received too much credit repaid only a capped amount, with limits that ranged from a few hundred dollars up to roughly $3,250 depending on income and filing status. Now the full excess must be repaid, and a household that crosses 400 percent still loses the entire credit.

An illustrative example from the reporting we reviewed: a family of four estimates income at about $65,000 and receives $8,000 in advance credits during the year. If their final income qualifies them for only $4,000, they owe the entire $4,000. Under the old rules, their repayment would have been limited to a figure near $1,950. A self-employed filer who expects about $31,300 but earns $56,000 after a strong year could see a repayment of roughly $3,500 instead of a capped amount near $1,625. These figures are examples from financial planners, not guarantees, and actual results depend on age, benchmark premium and plan.

Financial planners are warning that the bills will appear at tax time. Certified financial planner Tommy Lucas told CNBC that the stories of very large tax bills from credit paybacks would begin in February, March and April 2027, when 2026 returns are filed and Form 8962 reconciles advance credits against actual income. If you want the credit only to the extent you are sure to qualify, you can choose to take less of it in advance each month.

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Who Is Most Exposed to the ACA Subsidy Cliff?

The impact is not uniform. The groups with the most risk are listed below.

Households above 400 percent, who lost federal help entirely. KFF gave an example of a 60-year-old couple earning about $85,000, which is about 402 percent of the poverty level in 2025 terms, who would face premium payments rising by more than $22,000 a year after accounting for a premium increase. Older adults feel the largest dollar increases because Marketplace premiums are age-rated.

Self-employed workers, contractors and freelancers, whose income is hard to predict and who now face the uncapped repayment rule.

Early retirees who draw down retirement accounts, do Roth conversions or realize capital gains, since those items can push modified adjusted gross income higher than expected.

Households near the line, who can lose the whole credit with a modest income change.

Rural residents, who often have fewer insurers and higher benchmark premiums, according to KFF’s analysis of earlier projections.

Lower-income enrollees keep some help, but they also pay more than before. In 2025, many had a $0 premium. CMS has warned that some people who had no premium in 2025 now pay something in 2026.

How Premiums Are Changing for 2027

Insurers are proposing a second straight year of double-digit increases. KFF’s updated analysis of 276 insurers across all 50 states and the District of Columbia found a median proposed increase of 15 percent for 2027, after a median finalized increase of 20 percent for 2026. If the proposals hold, typical premiums will have risen by more than one-third in two years. Some individual insurers have asked for increases above 50 percent, and none of the early filers KFF reviewed proposed a decrease.

Insurers cite rising health care costs, general inflation, and the expiration of enhanced credits, which pushed healthier enrollees out and left a sicker risk pool. They estimate the changed risk pool added about four percentage points to 2026 rates and expect a similar effect in 2027. KFF gave one example: a 40-year-old in Indianapolis earning $65,000 paid $316 a month in 2025, and could pay about $546 a month in 2027 if proposed rates are approved. These are proposed rates, and final approved rates may differ by state.

Most subsidized enrollees are partly shielded because the credit grows with the benchmark premium. People above 400 percent get no such shield and absorb the full increase.

ACA Open Enrollment 2027 Dates

Sources disagreed on this point for months, so it is worth being exact. A 2025 federal rule would have shortened HealthCare.gov open enrollment to end on December 15, 2026. A federal judge in Maryland vacated that change on June 12, 2026 in the case City of Columbus v. Kennedy. HHS appealed in July, with oral arguments scheduled for late October. In early August, HHS published a statement confirming that open enrollment in HealthCare.gov states would run from November 1, 2026 to January 15, 2027. HealthCare.gov itself lists the same dates. The appeal could still affect the schedule for fall 2027, but it does not change this year’s window.

State exchanges can differ. The dates below were reported as of October 28, 2026, and you should confirm them on your own exchange.

For 2026, 20 states plus the District of Columbia ran their own exchanges. Oregon moves to its own platform for 2027, which leaves 29 states on HealthCare.gov. Earlier versions of this guide cited a different count, and a Georgia opening date of October 19 that is not supported by the latest published schedule.

Which States Offer Extra ACA Financial Help?

CMS identifies 10 states that add their own subsidies on top of federal credits or cost-sharing reductions: California, Colorado, Connecticut, Maryland, Massachusetts, New Jersey, New Mexico, New York, Vermont and Washington. Programs differ widely, so the figures below are state-reported and you should check your own exchange for current eligibility.

What to Do If You Cannot Afford Your ACA Plan

Do not cancel before checking your options. The steps below are in order of how often they help.

First, update your Marketplace application. Credits are based on expected income, so report changes in income and household as soon as they happen.

Second, compare every plan. Auto-renewal may not pick the cheapest option. Lower premiums often mean higher deductibles, so compare total expected cost, not just the monthly bill.

Third, check Medicaid and CHIP. You can apply at any time of year, and the Marketplace application will tell you if anyone in the household qualifies. Medicaid eligibility depends on your state’s expansion status.

Fourth, look at state help in the table above.

Fifth, consider a community health center. HRSA-supported centers provide care with or without insurance and charge on a sliding fee scale. This is not a substitute for insurance, but it can keep care affordable while you sort out coverage.

Be careful with short-term plans. They are not ACA plans and may exclude pre-existing conditions. Rules on duration and availability differ by state and have been subject to change, so verify the current federal and state limits before buying.

Also be careful about buying a plan outside the Marketplace. HealthCare.gov says that if you do, you cannot receive premium tax credits for that plan.

If you stop paying, HealthCare.gov says plans using advance credits generally have a three-month grace period if at least one full month’s premium was paid. A termination for nonpayment generally does not open a special enrollment period on its own. Contact the Marketplace or your insurer before coverage lapses.

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How to Protect Yourself From a Surprise Tax Bill

Report income changes during the year. Updating your application lets the advance credit be recalculated going forward, which shrinks the gap you might owe later.

Take less credit in advance. You can choose a smaller monthly advance and claim the rest on your tax return, trading a higher monthly bill for a cushion.

Lower modified adjusted gross income where you can. A contribution to a health savings account with a qualifying high-deductible plan reduces income, with 2026 limits of $4,400 for self-only coverage and $8,750 for family coverage. A solo 401(k) or SEP-IRA can do the same for self-employed workers.

Watch timing. Sending an invoice in early January instead of late December, or delaying a Roth conversion to the following year, can keep a borderline household under 400 percent for a given coverage year.

Consider alternatives if you lose the credit. The administration has announced wider access to low-premium, high-deductible catastrophic plans starting in 2026 for people who do not qualify for subsidies. These can suit younger, healthier people who mainly want protection from major events, but the deductibles are high.

Count everyone. A common mistake is forgetting income from a household member who is not enrolling, such as a working teenager who files their own return. Another is estimating from last year’s pay stubs and missing a bonus, freelance project or capital gain.

Who Does Not Qualify for the Premium Tax Credit?

Income is only one test. You generally cannot claim the credit if any of the following apply.

You have access to affordable employer coverage that meets minimum value standards. For 2027, coverage is treated as affordable if your share of the employee-only premium is at most 10.22 percent of household income, up from 9.96 percent in 2026. The test uses employee-only coverage, not the cost of covering your family.

You are eligible for Medicaid, Medicare or CHIP.

You are not a U.S. citizen, national or lawfully present immigrant. Eligibility rules for immigrants have been narrowed by recent law and rule changes, including changes affecting DACA recipients, so confirm your situation on HealthCare.gov. KFF’s analysis also notes that a provision in the reconciliation law means no enrollees under 100 percent of the poverty level are assumed to receive credits in 2026, so an older exception for some lawfully present immigrants below that line should not be relied on.

Someone else claims you as a dependent.

You are married and file separately, except in narrow cases involving domestic abuse or abandonment.

You did not buy the plan through the Marketplace.

How to Apply for 2027 Marketplace Coverage

Create or log in to your HealthCare.gov account, or your state exchange account if your state runs its own platform. Enter your expected household income for the coverage year, not last year’s income, along with household members and any changes. Compare plans by metal tier, checking premiums, deductibles, doctors and prescriptions. Apply your credit to see your real monthly cost, select a plan and pay the first premium so coverage actually starts. You can also apply by phone through the call center or with a free navigator or broker.

Processing Time and Coverage Start Dates

HealthCare.gov typically returns an eligibility determination within minutes for straightforward applications. Applications flagged for income or identity verification can take several weeks while you submit documents. Coverage start depends on enrollment date: enroll and pay by December 15, 2026 for January 1, 2027 coverage, or by January 15, 2027 for February 1 coverage. There is no faster processing track. Outside open enrollment, you need a qualifying life event, and you generally have 60 days from the event.

How the Credit Is Paid and Reconciled

The advance credit is paid directly to your insurer each month and reduces your bill. You reconcile it on IRS Form 8962 when you file your tax return, using the Form 1095-A your Marketplace sends. If your final income is lower than estimated, you may get additional credit as part of your refund. If it is higher, you now repay the full excess with no cap, and if it exceeds 400 percent of the poverty level you owe back the entire credit.

How the $50 Billion Rural Health Transformation Program Fits In

The Rural Health Transformation Program is a separate federal grant fund, not a premium subsidy, and it does not replace the Premium Tax Credit. It sits in this guide because it is part of the same health financing picture for rural communities, which also face Medicaid reductions and lower Marketplace enrollment.

Congress created the program in the One Big Beautiful Bill Act, signed on July 4, 2025, with $10 billion a year from fiscal year 2026 through 2030. CMS approved all 50 state applications and announced first-year awards on December 29, 2025. Awards range from $147 million in New Jersey to $281 million in Texas, averaging about $200 million. Half of the money is split equally, at $100 million per state per year, and the rest depends on rural population and facilities, the strength of each state’s plan and certain state policy actions. The District of Columbia and the territories were not eligible.

CMS released its first report on state use of the funds on October 9, covering December 29, 2025 through July 31, 2026. States are moving at very different speeds, with some already issuing grants and contracts while others are still building procurement systems.

States must use the money for at least three of eleven permitted purposes, including technology, workforce, prevention, behavioral health, new care models and provider collaboration. Limits apply: provider payments may not exceed 15 percent of a state’s award in a budget period, investment in existing buildings 20 percent, electronic health record replacement 5 percent and administration 10 percent. New construction and ongoing operating costs are not allowed.

Providers cannot apply to CMS directly. Money flows through state agencies, so hospitals and clinics should find their state’s rural health transformation page, read the approved plan, watch for state requests for applications and show a sustainable impact beyond the program period.

KFF estimates the fund could offset about 37 percent of roughly $137 billion in federal Medicaid cuts projected for rural areas over ten years, and the fund ends after five years while many of the cuts continue. It does not account for the loss of enhanced ACA credits, which are expected to raise the number of uninsured people. That context is why rural enrollment trends in the Marketplace remain important to watch.

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Conclusion

The ACA subsidy cliff is back, but its effect is far from uniform. People below 400 percent of the poverty level still receive federal help, though it is smaller than during the enhanced years. People above that line get nothing from the federal credit, and everyone now faces an uncapped repayment bill if their income estimate is too low. With open enrollment starting this weekend, the most useful steps are to estimate income carefully using the correct poverty guidelines, compare every plan, check state programs and report changes through the year. Keep an eye on Congress, the courts and your state exchange, because the rules that govern 2028 coverage are still being fought over.

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