If your ACA marketplace premium notice for 2026 looked dramatically different from last year, there's a specific, identifiable reason: temporary enhanced premium tax credits — first introduced during the pandemic and repeatedly extended since — expired on December 31, 2025. Congress did not renew them before the deadline, so subsidy eligibility and benefit levels reverted to the original, less generous formula written into the ACA's initial law. This explainer covers what changed and by how much; it is not guidance on which plan to choose, which is a decision for the marketplace's own tools or a licensed navigator.
The short version: the underlying average insurer premium rose about 26% in 2026 — a normal year-over-year increase. But what subsidized enrollees actually pay jumped 114% on average, from about $888/year in 2025 to about $1,904/year in 2026, because the extra subsidy that used to absorb most of that cost is gone. The "subsidy cliff" at 400% of the federal poverty line has also returned, cutting off assistance entirely above that income line rather than phasing it out gradually.
Two different numbers, easy to conflate
It matters to separate two figures that often get blurred together in coverage of this change. Insurers themselves raised premiums by about 26% on average in 2026 — a fairly ordinary increase reflecting medical cost trends. Separately, and much larger, is the increase in what subsidized enrollees actually pay out of pocket: 114% on average, because the enhanced subsidy that used to cover most of that 26% (and more) no longer exists. The insurance didn't get 114% more expensive; the help paying for it got 114% smaller.
| Metric | 2025 | 2026 |
|---|---|---|
| Average subsidized enrollee annual premium payment | $888 | $1,904 |
| Average subsidized enrollee monthly premium payment | $74 | $158.67 |
| Share of marketplace enrollees receiving any premium tax credit | 92% | 87% |
The subsidy cliff is back
Before the pandemic-era enhancements, the ACA had a hard income cutoff: households earning more than 400% of the federal poverty line received no premium tax credit at all, regardless of how much of their income insurance premiums consumed. The enhanced credits removed that cliff, phasing assistance out gradually above 400% instead of cutting it off outright. With the enhancements expired, that cliff has returned — a household just above the 400% line can lose all assistance at once, a materially different situation than a household just below it.
Why enrollment is already shifting
The share of marketplace enrollees receiving any premium tax credit fell from 92% in 2025 to 87% in 2026 — the first such decline since 2020. That's a direct, mechanical consequence of the subsidy cliff's return and the reduced credit amounts: some enrollees who previously qualified for assistance no longer do, and some who still qualify are receiving less.
What this means for your household budget
- Check your actual renewal notice against last year's — the average figures above won't match your specific plan, income, or state exactly.
- If your income is near 400% of the federal poverty line, small changes in reported income can now matter more than they used to, given the returned cliff.
- Budgeting for a higher premium line item is worth doing now rather than after enrollment, since for many households this is a structural, ongoing increase, not a one-time bump.
None of this is a recommendation about which ACA plan or coverage tier to select — that depends on your specific health needs, provider network, and income, which is exactly what the marketplace's own eligibility tools and licensed navigators are built to help with.