Health insurance has its own language, and misunderstanding a few key terms can cost you real money. Here’s a plain-English explanation of the three most important cost-sharing concepts in your individual health plan.
Deductible
The deductible is the amount you pay out-of-pocket for covered services before your insurance starts sharing costs. If your deductible is $3,000, you pay the first $3,000 of covered medical expenses each year yourself.
Important nuance: Many plans have separate deductibles for medical services and prescription drugs. And most plans cover preventive care at 100% with no deductible — your annual physical, screenings, and certain vaccines are free regardless of whether you’ve met your deductible.
Copay
A copay is a fixed amount you pay for a specific service — like $30 for a primary care visit or $50 for a specialist — regardless of your deductible status. Some plans apply copays before the deductible is met; others apply them only after. Read your plan’s Summary of Benefits to know which applies to you.
Coinsurance
After meeting your deductible, coinsurance kicks in. This is a percentage split — typically 80/20 or 70/30 — where the insurance company pays the larger share and you pay the smaller one. On a $10,000 covered procedure with an 80/20 plan (after deductible), you’d pay $2,000.
Out-of-Pocket Maximum
The out-of-pocket maximum is your safety net. It’s the most you’ll ever pay in a plan year for covered services. Once you hit this limit, insurance covers 100% of covered costs for the rest of the year. The ACA caps individual out-of-pocket maximums at $9,450 in 2026.
How These Work Together
Example: $2,500 deductible, 80/20 coinsurance, $7,000 out-of-pocket max.
- You pay the first $2,500 entirely
- Then you pay 20% of costs until total out-of-pocket hits $7,000
- After that, insurance covers 100% for the rest of the year
Understanding this structure helps you calculate your true financial exposure under any plan you’re considering. Garden State Benefits can walk you through the real numbers for any plan you’re considering.