The ACA subsidy cliff is back. One dollar of income can cost you $25,000.
For four years there was no cliff. The enhanced premium tax credits passed in 2021 capped what anyone paid at 8.5% of income, however much they earned. Those credits expired on December 31, 2025, and Congress has not replaced them. So for 2027 coverage the original rule is back: help runs from 100% to 400% of the federal poverty level, and at 401% it does not shrink, it stops.
What the cliff looks like in one example
A couple, both aged 62, buying their own coverage. Below is the same couple, the same plan, the same year. The only difference between the two rows is one dollar of income.
| Household income | Premium tax credit | What they pay |
|---|---|---|
| $86,560 (exactly 400%) | $25,488/yr | $737/mo |
| $86,561 (one dollar more) | $0 | $2,861/mo |
That one dollar costs roughly $25,000. The damage scales with age, because premiums do: the benchmark plan for a 60-year-old averages around $1,489 a month in HealthCare.gov states before any credit. People in their early sixties, too young for Medicare and buying their own insurance, are hit hardest by a wide margin. If that is you, see the full early-retirement breakdown, including the two years where this cliff and your future Medicare premium both bind at once.
The 2027 income limits, by household size
These are 400% of the federal poverty level for the 48 contiguous states and DC. One quirk worth knowing: the marketplace uses the prior year poverty guidelines, so 2027 coverage runs off the 2026 figures.
| Household size | Lower limit (100%) | The cliff (400%) |
|---|---|---|
| 1 person | $15,960 | $63,840 |
| 2 people | $21,640 | $86,560 |
| 3 people | $27,320 | $109,280 |
| 4 people | $33,000 | $132,000 |
| 5 people | $38,680 | $154,720 |
| 6 people | $44,360 | $177,440 |
Alaska and Hawaii use higher poverty guidelines, so both limits are higher there. Add roughly $22,720 per additional person for households larger than six.
It is not your salary, it is your MAGI
The marketplace uses modified adjusted gross income: your adjusted gross income, plus tax-exempt interest, plus untaxed Social Security benefits, plus excluded foreign earned income. It is a household figure covering a spouse and any dependants required to file.
The trap almost nobody sees coming
Advance premium tax credits are paid on an estimate of your income and reconciled when you file. If you finish the year under 400% of poverty, there are caps on how much you have to pay back. Above 400% there is no cap at all. You repay every dollar of advance credit you received. For the couple in the example that is roughly $25,000 falling due at tax time, on top of having had no idea it was coming.
If your income is anywhere near the line: update your marketplace estimate the moment you know it has moved, and consider taking less advance credit than you are offered. You can always claim the rest on your return. You cannot easily find $25,000 in April.
The legal levers to stay under
MAGI responds to a number of ordinary deductions. None of this is exotic or aggressive; it is the same planning people do for other thresholds. All of it is specific to your return, so work it through with a tax professional before the year closes, because almost every lever here stops working on December 31.
Traditional IRA, 401(k), SEP-IRA or solo 401(k)
Pre-tax retirement contributions reduce MAGI directly. For the self-employed a SEP-IRA or solo 401(k) can move the number substantially.
Health savings account
If you hold an HSA-eligible plan, an HSA contribution reduces MAGI, and it is one of the few levers that also pays for the care you are buying coverage for.
Capital loss harvesting
Realised losses offset realised gains. If a late-year gain is what pushes you over, this is often the fastest correction available.
Defer a Roth conversion
Conversions are fully counted in MAGI. Pushing one into a year when you are on Medicare, or simply a lower-income year, avoids paying for it twice.
Time when you realise income
Which tax year a gain, a withdrawal or an invoice lands in is often genuinely within your control, and near the cliff that timing is worth more than the income itself.
Self-employed deductions
The deductible part of self-employment tax reduces MAGI. The self-employed health insurance deduction does too, but it interacts with the credit circularly and really does need a professional.
A dollar of MAGI reduction near the cliff is worth far more than a dollar anywhere else in the tax code. For the couple above, roughly the last $1 of income carries a $25,000 consequence, which makes a $7,000 IRA contribution one of the highest-return moves available to them.
If you are already over and cannot change it
Re-shop the whole market
The plan that suited you while subsidised is rarely the right one at full price. Bronze and HSA-eligible plans look very different once nobody but you is paying the premium. Buying directly from an insurer is also worth checking, because without a credit the marketplace gives you no price advantage.
Look outside the individual market
A spouse employer plan, COBRA, or for some people a part-year job that carries benefits can beat full-freight individual coverage. Run the comparison properly rather than assuming.
Be careful with health care sharing ministries
They advertise hard into exactly this moment. They are not insurance, they are not legally required to pay anything, and they are not bound by ACA protections for pre-existing conditions or essential benefits.
The bills are still negotiable
Going uninsured or underinsured is a risk, not a catastrophe, and a bill you have already received is not a fixed number. See what to do when your premium jumps.
Dates for 2027 coverage
Open enrollment runs November 1, 2026 to January 15, 2027 in most states. Enrol by December 15 for coverage starting January 1; after that, coverage generally begins February 1. Some state-run exchanges set their own, often later, deadlines, so check yours. Insurers proposed a median increase of about 15% for 2027, a second consecutive year of double-digit rises, which means renewing automatically is an expensive default this year.
If the bills come anyway, they are negotiable
Losing a subsidy often means choosing a higher deductible, which means the next real medical event lands on you. A bill you have already been sent is not a fixed number: most have room to come down, through pricing errors, the self-pay discount, financial assistance, or straight negotiation. CareRoute Bill Defense does that work for you, and our fee is a share of what we save you, so if we do not reduce the bill you owe us nothing.
Frequently asked questions
What is the ACA subsidy cliff, and why is it back for 2027?
The subsidy cliff is the point where premium tax credits stop completely rather than tapering off. Under the original ACA rules, help is available from 100% to 400% of the federal poverty level, and at 401% it is gone entirely. The enhanced credits passed in 2021 removed that cliff by capping what anyone pays at 8.5% of income no matter how high their earnings. Those enhanced credits expired on December 31, 2025, and Congress has not extended them: the House passed a three-year extension in January 2026, but the Senate has not reached the 60 votes needed. So for 2027 coverage the original rules apply again, and the cliff is back.
Sources: IRS, premium tax credit basicsKFF, Affordable Care Act research
What is the income limit for 2027, exactly?
For 2027 coverage, 400% of the federal poverty level is $63,840 for one person, $86,560 for two, $109,280 for three, $132,000 for four, $154,720 for five and $177,440 for six, in the 48 contiguous states and DC. Alaska and Hawaii use higher poverty guidelines, so their thresholds are higher. The lower limit for marketplace credits is 100% of poverty, about $15,960 for one person. These figures come from the 2026 poverty guidelines, because the marketplace always uses the prior year guidelines for the coming plan year, which is a detail that confuses almost everyone the first time.
Sources: HHS ASPE, federal poverty guidelinesIRS, premium tax credit basics
How much does crossing the line actually cost?
Far more than most people expect, and the damage rises sharply with age because premiums do. Take a couple both aged 62 with income of exactly $86,560, which is 400% of poverty for two people. Their premium tax credit is roughly $25,488 for the year and they pay about $737 a month. At $86,561, one dollar more, the credit becomes $0 and they pay roughly $2,861 a month. That single dollar costs them about $25,000. A 60-year-old faces a benchmark premium averaging around $1,489 a month in HealthCare.gov states before any credit, which is why the cliff hits people in their early sixties hardest.
Sources: KFF, Affordable Care Act researchIRS, premium tax credit basics
Which income counts? Is it the same as my salary?
No, and this is where people go wrong. The marketplace uses modified adjusted gross income (MAGI), which is your adjusted gross income plus any tax-exempt interest, any untaxed Social Security benefits, and any excluded foreign earned income. It is a household figure, so it includes a spouse and any dependants who must file. Importantly it captures things a salary does not: capital gains, Roth conversions, taken-not-reinvested dividends, retirement account withdrawals, and self-employment profit. Many people who cross the cliff do so because of a one-off event late in the year rather than their regular earnings.
Sources: IRS, premium tax credit basics
Can I legally reduce my income to stay under the threshold?
Often yes, because MAGI responds to several deductions that are entirely ordinary tax planning. Contributions to a traditional IRA, a 401(k), a SEP-IRA or a solo 401(k) reduce MAGI. So does a health savings account contribution if you hold an HSA-eligible plan. For the self-employed, the deductible portion of self-employment tax and the self-employed health insurance deduction both reduce it, though the latter interacts with the credit in a circular way that genuinely needs a professional. Harvesting capital losses, deferring a Roth conversion to a later year, and timing when you realise gains can all move the number. None of this is exotic, but all of it is specific to your return, so work it through with a tax professional before the year closes rather than discovering the problem in April.
Sources: IRS, premium tax credit basics
I am getting advance credits now. What happens if I end the year over 400%?
This is the most expensive trap in the whole system and very few people see it coming. Advance premium tax credits are an estimate, reconciled on your tax return. If you end up under 400% of poverty, there are caps limiting how much you must repay. Above 400%, there is no cap at all: you repay every dollar of advance credit you received. For the 62-year-old couple above that means roughly $25,000 becoming due at tax time. If your income is anywhere near the line, update your marketplace estimate as soon as you know, and consider taking less credit in advance than you are offered, since you can always claim the remainder on your return.
I am over the cliff and cannot change it. What now?
Shop the whole market rather than renewing, because the plan that was right when subsidised is rarely the right one at full price. Compare bronze and HSA-eligible plans, which look different once nobody is paying your premium but you. Check whether buying directly from an insurer beats the marketplace, since without a credit the marketplace offers no price advantage. Look at whether a spouse employer plan, COBRA, or for some people a part-year job with benefits is cheaper than full-freight individual coverage. Treat health care sharing ministries with real caution: they are not insurance, they are not required to pay, and they are not bound by the ACA protections. And if you end up with bills anyway, they are negotiable.
Sources: HealthCare.govCareRoute: your ACA premium jumped for 2027
Related
Sources & references
- IRS, the premium tax credit basics (eligibility, MAGI, reconciliation)
- HHS ASPE, federal poverty guidelines
- HealthCare.gov, open enrollment dates and plan comparison
- KFF, Affordable Care Act research and subsidy analysis
- IRS Revenue Procedure 2026-26 (the applicable percentage for 2027, 10.22% at 300 to 400% of poverty)
This is general information, not tax, legal or insurance advice, and nothing here is a recommendation of a specific plan or a strategy for your return. MAGI, deductions and reconciliation depend entirely on your own tax situation; speak to a qualified tax professional before acting, particularly before the tax year closes. The example figures are illustrative and vary by age, state, household and plan. Congress may still change the subsidy rules for 2027; the position described here is the law as it stands on the date below. Confirm your own numbers at HealthCare.gov or your state exchange. Last verified November 1, 2026.