Subsidy Cliff

The subsidy cliff refers to the total elimination of premium tax credits at 400% of the Federal Poverty Level (FPL). For 2026, this threshold is $63,840 for a single person and $132,000 for a family of four. The cliff returned in 2026 when the enhanced credits (American Rescue Plan and Inflation Reduction Act, 2021-2025) expired. Those enhanced credits had eliminated the cliff by extending reduced-rate subsidies to all income levels. The cliff creates an effective marginal tax rate of 17-19% at the threshold: a single dollar of additional income can cost $3,000 to $5,000 in lost subsidies. Early retirees, self-employed individuals, and people with variable income are most affected. The cliff is based on annual income reported at tax time, so unexpected income during the year (such as a Roth conversion or asset sale) can trigger full repayment of advance credits received.