The first invoice
A household that paid $280 a month through payroll receives a COBRA bill for $1,640 — the same plan, with the employer's share of the premium no longer being paid.
Income that already changed
Someone is certain they earn too much for a subsidy, using the salary they no longer have. Credits are assessed on the current year's actual income, which has just fallen sharply.
The deductible already paid
A cheaper Marketplace plan in September would have reset a deductible that was almost entirely met, making the more expensive COBRA option cheaper across the remaining year.
Dropped, then stuck
COBRA is elected and abandoned four months in to save money. Voluntarily ending it is not a qualifying event, and the next enrollment opportunity is open enrollment.
The 30-day window missed
A spouse's employer plan would have been the cheapest option available, but its special enrollment window closed at 30 days while the COBRA packet was still being considered.
The gap that was almost created
Coverage is cancelled the day a new application is submitted rather than the day it is approved, opening a two-week window in which nothing is in force.