The 400% FPL subsidy cliff, worked example by income

"Cliff" is not a metaphor. Below the line, your premium is capped as a share of income; at 400% of the federal poverty level plus one dollar, the cap — and the entire credit — is gone. Here's what that means in dollars.

Where the line sits

400% FPL depends on household size, updated annually. [PLACEHOLDER — during licensed review, insert the exact 2026-guideline dollar thresholds used for plan year 2027 eligibility for households of 1–5, and verify each example below against the final 2027 benchmark rates.] As rough orientation, the line for a single adult sits in the low $60,000s and for a couple in the low $80,000s.

Three sketches of the same cliff

• Single freelancer, 31. Modest benchmark premium at her age; crossing the line costs her the credit — painful but survivable, typically a few thousand dollars a year. Her real risk is accidental crossing: a strong Q4 she doesn't report, reconciled without repayment caps at tax time.
• Couple, 61 and 59. The cliff at its worst: age-rated premiums near the top of the 3:1 curve mean the lost credit can exceed $1,000 a month. For them, crossing the line by $1,000 of income can cost more than $12,000 of subsidy — a marginal "tax rate" above 1,200%. This is why MAGI management is a five-figure topic.
• Family of four, self-employed parents in their 40s. In between — and the household most likely to hover near the line unpredictably, since business income moves. Their tool is the same as the freelancer's: conservative estimates, same-month updates, and the deduction interplay checked by a professional.

If you're near the line

Within about 10% of 400% FPL in either direction, three habits pay: know your number (the threshold for your household size, this year); use the levers you legitimately control (retirement contributions, HSA contributions, the self-employed health insurance deduction all reduce MAGI); and never let a windfall ride unreported. If you're over the line no matter what — check Gold against Silver and read the catastrophic-plan explainer before concluding you're priced out. Your actual county prices are one ZIP code away.