Health Insurance Plan Math: Deductibles, Coinsurance & Out-of-Pocket

What you'll build

What you will be able to do

Each lab ends with a concrete result that you build yourself and the checker confirms, cell by cell.

• Work out Maya's share of the premium for three workplace plans per month, per year and per paycheck.
• Split three claims of different sizes between Maya and Plan B, step by step: deductible, coinsurance, out-of-pocket maximum.
• Run Maya's claims for a whole year through Plan B and track how the deductible fills up, coinsurance starts, and the out-of-pocket maximum stops her costs.
• Compare Maya's three plans on total yearly cost (premiums + out-of-pocket) in a low, a medium and a high usage year, and see how much a wrong choice can cost.
• Chart total cost against medical spending for Plan A and Plan C and find the spending level where the two plans cost the same.
• Add a tax-advantaged health savings account to Plan C: the tax saving, the net cost of the plan this year, and how the unspent money grows.
• Work out what Maya's family of four pays when one person has big claims, first with an embedded deductible, then with an aggregate one.
• Weight Maya's low, medium and high usage scenarios by their probability, find each plan's expected yearly cost, pick the plan and chart the result.