Parity
Health · Cost-share

Deductible vs out-of-pocket maximum

Premium is the tip. Your bad-year cost is deductible trajectory + coinsurance + copays — capped by the out-of-pocket max. Confusing these three is how households under-insure.

Three numbers that matter

  1. Deductible — what you pay for most non-preventive care before the plan shares cost. A $7,000 deductible plan can look cheap monthly and still leave you writing large checks in March.
  2. Coinsurance / copays — your share after the deductible (e.g. 20% of an allowed hospital bill, or a flat specialist copay). Copays sometimes apply before deductible; plan design varies.
  3. Out-of-pocket maximum (OOP max) — the annual ceiling on what you pay for covered, in-network care. Once you hit it, the plan pays 100% of covered services for the rest of the year. This is your true worst-case member cost (plus premiums).

Worked intuition

Family silver: $6,000 family deductible, 20% coinsurance, $14,000 family OOP max, ~$7,400 premium. A surgery year with $40,000 allowed charges can still push you near the OOP max — total member spend ≈ premium + OOP path, not “just the deductible.”

Parity’s health hub models low / moderate / high utilizer scenarios so you see that path before open enrollment ends.

Common traps

  • Shopping metal tier + monthly premium only — ignoring OOP max and network geometry.
  • Assuming deductible = max you’ll ever pay (it doesn’t; coinsurance continues until OOP max).
  • Ignoring Rx specialty coinsurance and prior auth — specialty drugs can dominate member cost.
  • Out-of-network bills that don’t count the same way toward OOP (plan-specific).

How Parity uses this

We normalize deductible, OOP max, copays, and coinsurance into comparable dimensions, then estimate member cost under utilizer scenarios. Verdicts flag plans that look cheaper on premium but raise catastrophic exposure.

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