What does the ACA subsidy cliff cost a household of 4 people?
For a household of 4 people, 400% of the federal poverty level is $128,600. At that income you are expected to contribute $12,217 toward a $21,000 benchmark plan, and the premium tax credit covers the remaining $8,783. One dollar more and the credit is not reduced, it is GONE: you pay the full $21,000. That dollar costs $8,783.
Most tax thresholds taper. You cross into a higher bracket and only the dollars above the line are taxed more. The premium tax credit does not work that way. At 400% of the federal poverty level it stops completely, and the household pays the whole premium.
For 4 people the poverty line is $32,150, so the cliff sits at $128,600. Just below it you contribute up to 9.5% of income, which is $12,217, and the credit pays the rest. On a $21,000 plan that is $8,783 of help. Earn one more dollar and you pay $21,000 yourself.
This matters most to people who retire before 65, because they are the ones buying their own coverage AND the ones with the most control over their income. A Roth conversion, a capital gain taken to rebalance, or a larger withdrawal than planned all raise the income the credit is measured against. Any of them can cross the line without feeling like a decision about health insurance at all.
Which cuts both ways, and this is the useful part. Because the income is largely yours to choose in early retirement, the cliff is one of the few tax thresholds you can genuinely manage. Drawing from a Roth instead of a pre-tax account does not raise the figure the credit is tested against. Neither does spending from a taxable account's cost basis. The same year that is a good year for a Roth conversion may be a very expensive one for premiums, and those two facts have to be weighed together rather than in turn.
The timing is worth stating plainly. The enhanced subsidies passed in 2021 removed this cliff and ran through 2025. They expired, so the statutory cliff applies again for 2026 coverage, which is the baseline modelled here. If Congress restores them the cliff softens into a taper, and that is a policy question rather than a modelling one, so we do not answer it on your behalf.
Two details that catch people out. The credit is measured against a MAGI for the whole calendar year, so a December decision counts as much as a January one. And the credit is usually advanced monthly against your premium, then trued up on your return, which means crossing the line late in the year can turn into a bill rather than a smaller subsidy.
What this page does not do: quote you a premium. That is a genuine input, not something we estimate, because it varies by state, age and plan, and a 60-year-old pays roughly three times a 21-year-old for the same coverage. The $21,000 here is a stated figure so the arithmetic is checkable. Use the row closest to your own quote.
Household size vs outcome
The same question at every household size, so you can use the one you believe.
| Household size | Income where the credit stops (at a $21,000 premium) |
|---|---|
| 1 person | $62,600 (loses $15,053) |
| 2 people | $84,600 (loses $12,963) |
| 4 peoplethis page | $128,600 (loses $8,783) |
Poverty guidelines from the sourced reference database. An ACA coverage year uses the guidelines published in the PRIOR calendar year. Contribution capped at 9.5% of income at the cliff. The premium shown is an input, not our estimate: yours depends on your state, age and plan.
Assumptions
- Household Size
- 4
- Poverty Line
- 32150
- Cliff Multiple
- 4
- Cliff Income
- 128600
- Benchmark Premium
- 21000
- Max Contribution Pct
- 0.095
- Expected Contribution
- 12217
- Credit Lost At Cliff
- 8783
Frequently asked
What is the ACA subsidy cliff for a household of 4 people?
$128,600, which is 400% of the $32,150 poverty line for 4 people. Below it you receive a premium tax credit; above it you receive nothing and pay the full premium. At a $21,000 plan that is $8,783 lost for one extra dollar of income.
Is the credit reduced gradually above the limit?
No, and that is the whole problem. Below the line your expected contribution rises smoothly with income. At the line it stops being a taper and becomes a switch: the credit goes to zero. It is one of the sharpest discontinuities in the tax code.
Which income counts?
A modified adjusted gross income for the full calendar year. Pre-tax withdrawals, Roth CONVERSIONS, capital gains and interest all count. Roth withdrawals and the return of a taxable account's cost basis do not, which is precisely why the order you spend from matters so much before 65.
Did the cliff go away?
It was suspended, not repealed. The enhanced subsidies enacted in 2021 removed it and ran through 2025, then expired, so the statutory cliff is the baseline for 2026 coverage. Whether it returns permanently is a matter of legislation, so plans here are modelled with the cliff present rather than assuming a change that has not happened.
Can I do anything about it?
Yes, more than with most thresholds, because in early retirement you largely choose your own taxable income. Funding spending from a Roth or from basis keeps MAGI below $128,600; a conversion or a realised gain can push it over. The cost of crossing is $8,783 here, so it belongs in the same decision as the conversion rather than being discovered afterwards.
Keep going
Rightmont tracks your percentage of the poverty level every year before 65 and shows what a conversion does to it. Model it free.
Model My Decision